2over1

Default principles
Offensive bidding
Bidding diagrams
Opening bids:
Pass No opening bid
1♣ 12+ HCP, 3+♣
1♦ 12+ HCP, 4(3)+♦, 4♦-4♣ can choose to open either minor
1♥ 12+ HCP, 5+M, may have a longer minor\\3rd hand 1♥ ~strong 4 card suit
1♠ 12+ HCP, 5+M, may have a longer minor
1NT 15-17, May have 5M\\1NT with 5H and 15-16 HCP or\\1NT with 5S and 16 HCP\\
2♣ Artificial, strong, standard
2♦ 11-15, 4+S-5+H longer H (Flannery)
2♥ weak two, 6cards vul,\\may be 5card NV
2♠ weak two, 6cards vul,\\may be 5card NV
2NT 20-21HCP
3♣ Preemptive
3♦ Preemptive
3♥ Preemptive
3♠ Preemptive
3NT Gambling, no side A/K in 1/2 seat (wide range 3/4 seat)
4♣ Preemptive
4♦ Preemptive
4♥ Preemptive
4♠ Preemptive

  D            Strong NT type but tolerance for a runout;

  1♦            Standard, may be light.

  1♥            Standard, may be light.

  1♠            Standard, may be light.

  1NT            15-18 HCP, 1NT opening system on.


After bidding 1NT
  2♣            Stayman, might not have a major
  2♦          No 4 card Major
   2♥         weak both majors \\♥ at least as long as ♠
   2♠         Weak 5+♠ and 4♥
   2NT         Invite might not have 4M
   3♣         5+cards with a 4M, GF, if no slam interest then unbalanced.
    3♦        concentrated. with worry about a bypassed suits.
     3NT       No worries. To Play.
     4♣       3N not good, does not promise slam interest or 6+cards
      4♥      3♥, suggest 4-3 moysion fit.
      4♠      3♠, suggest 3-4 moysion fit.
     4♦       cue-bid with slam interest, only promises 5♣
    3♥        concentrated. with worry about a bypassed suits.
     3NT       No worries. To Play.
     4♣       3N not good, does not promise slam interest or 6+cards
      4♥      3♥, suggest 4-3 moysion fit.
      4♠      3♠, suggest 3-4 moysion fit.
     4♦       cue-bid with slam interest, only promises 5♣
    3♠        concentrated. with worry about a bypassed suits.
     3NT       No worries. To Play.
     4♣       3N not good, does not promise slam interest or 6+cards
      4♥      3♥, suggest 4-3 moysion fit.
      4♠      3♠, suggest 3-4 moysion fit.
     4♦       cue-bid with slam interest, only promises 5♣
    3NT        To Play.
    4♣        3N not good, does not promise slam interest
   3♦         5+cards with a 4M, GF, if no slam interest then unbalanced.
    3♥        concentrated. with worry about a bypassed suits.
     3NT       No worries. To Play.
     4♣       cue-bid with slam interest, only promises 5♦
     4♦       3N not good, does not promise slam interest or 6+cards
      4♥      3♥, suggest 4-3 moysion fit.
      4♠      3♠, suggest 3-4 moysion fit.
    3♠        concentrated. with worry about a bypassed suits.
     3NT       No worries. To Play.
     4♣       cue-bid with slam interest, only promises 5♦
     4♦       3N not good, does not promise slam interest or 6+cards
      4♥      3♥, suggest 4-3 moysion fit.
      4♠      3♠, suggest 3-4 moysion fit.
    3NT        To Play.
    4♦        3N not good, does not promise slam interest
   3♥         4♥, 5+♠. Smolen
    3♠        Sets ♠ as trumps, Bad slam hand.
    3NT        2♠
     4♣       Natural. Slam try.
     4♦       Natural. Slam try.
     4♥       6♠, 4♥.
     4NT       Quantitative.
    4♣        Sets ♠ as trumps, Good slam cards.
     4♥       Retransfer to 4♠.
   3♠         4♠, 5+♥. Smolen
    3NT        2♥
     4♦       6+♥
     4NT       Quantitative.
    4♣        Sets ♥ as trumps, Good slam cards.
     4♦       Natural. Slam try.
     4♥       6+♥. To Play.
    4♥        sets ♥, bad slam cards.
  2♥          4H, might have 4S
   2♠         Invite only with 4♠, NF
   2NT         Invite no major
   3♣         5+cards, 4♠, GF, if no slam interest then unbalanced.
    3♥        no stopper in the other minor, denies 4♠\\
     3♠       Partial stopper in other minor. Denies 4♠
     3NT       No worries.
     4♣       3N not good, does not promise slam interest or 6+cards.
      4♠      Moysion 4-3 fit.
     4♦       cue bid with slam interest, only promises 5minor.
     4♥       To Play.
     4♠       cue bid with slam interest, only promises 5minor.
    3♠        4♠, sets trump
    3NT        Stopper in other minor
    4♣        Great suit play.
   3♦         5+cards, 4♠, GF, if no slam interest then unbalanced.
    3♥        No stopper in the other minor, denies 4♠\\
     3♠       Partial stopper in other minor.
     3NT       No worries.
     4♣       cue bid with slam interest, only promises 5minor.
     4♦       3N not good, does not promise slam interest or 6+cards.
      4♠      moysion (4-3) fit.
     4♥       To Play.
     4♠       cue bid with slam interest, only promises 5minor.
    3♠        4♠, sets trump
    3NT        Stopper in other minor
    4♦        Great suit play.
   3♥         Invite.
   3♠         Sets ♥ as trump, unspecified splinter.
    3NT        Asking bid.
     4♣       Singleton
     4♦       Singleton
     4♥       Singleton ♠.
    4♥        To Play.
   3NT         To Play.
   4♣         RKC for ♥, promises at least 3 of (5KC and trump Q) or 17+ HCP\\
   4♦         Balanced slam try in ♥
   4♥         To Play.
   4♠         To Play.
   4NT         Quantitative promises 4S, NF
  2♠          4S, denies 4♥.
   2NT         invite might not have 4♥.
   3♣         5+cards, 4♥, GF, if no slam interest then unbalanced.
    3♥        3 card ♥, No stopper in other minor.
     3♠       Last train for 3NT.
     3NT       To Play.
     4♣       3NT bad, does not promise slam interest or 6+cards.
     4♦       Cue-bid with slam interest, only promises 5 minor.
    3♠        Denies stopper in other minor, or 3♥'s.
     3NT       To Play.
     4♣       3NT bad, does not promise slam interest or 6+cards.
     4♦       Cue-bid with slam interest, only promises 5 minor.
    3NT        Stopper in other minor.
    4♣        Great suit play contract.
   3♦         5+cards, 4♥, GF, if no slam interest then unbalanced.
    3♥        3 card ♥, No stopper in other minor.
     3♠       Last train for 3NT.
     3NT       To Play.
     4♣       Cue-bid with slam interest, only promises 5 minor.
     4♦       3NT bad, does not promise slam interest or 6+cards.
    3♠        Denies stopper in other minor, or 3♥'s.
     3NT       To Play.
     4♣       Cue-bid with slam interest, only promises 5 minor.
     4♦       3NT bad, does not promise slam interest or 6+cards.
    3NT        Stopper in other minor.
    4♦        Great suit play contract.
   3♥         Sets ♠ as trump, unspecified splinter
    3♠        Ask for Natural suit?
     3NT       ♥ length suit.
     4♣       ♣ length suit.
     4♦       ♦ length suit.
    4♠        To Play.
   3♠         Invitational
   3NT         To Play.
   4♣         RKC for ♠.
   4♦         Balanced Slam try in ♠.
   4NT         Quantitative. No fit.
  3♥          5♥, 15-16 HCP
  3♠          5♠, 16 HCP

  2♦            Transfer to 2♥.
  Pass          Doubleton ♥.
  2♥          Forced to bid 2♥.
   2♠         5♥, 4♠ invite exactly.
   2NT         Invitational, may be unbalanced.
   3♣         4+ cards, mild Slam try.
    3♦        No stopper in ♦, denies ♥ fit.
     4♣       5♥,5♣
      4♥      HonorX suggest 5-2 fit.
    3♥        All hands with 3+♥.
    3♠        No stopper in ♠, denies ♥ fit.
     4♣       5♥,5♣
      4♥      HonorX suggest 5-2 fit.
    3NT        2♥. Both unbid suits well stopped.
    4♦        Cue-bid for ♣.
    4♠        Cue-bid for ♣.
   3♦         4+ cards, mild Slam try.
    3♥        All hands with 3+♥.
    3♠        No stopper in ♠, denies ♥ fit.
     4♦       5♥, 5♦
      4♥      HonorX suggest 5-2 fit.
    3NT        2♥. Both unbid suits well stopped.
    4♣        Cue-bid for ♦.
    4♠        Cue-bid for ♦.
   3♥         Invitational
   3♠         Splinter, Sets ♥ as trumps.
   3NT         choice of game, may be unbalanced.
   4♣         Splinter, Sets ♥ as trumps.
   4♦         Splinter, Sets ♥ as trumps.
   4♥         Mild balanced, Slam try.
   4NT         Quantitative.
  2♠          xx/Ax/Kx in a minor, 4+card ♥.
   2NT         Asking for doubleton suit?
    3♣        2♣
    3♥        2♦.
   3♦         Retransfer to 3♥.
  2NT          xx/Ax/Kx in ♠, 4+card ♥.
   3♦         Retransfer to 3♥.
  3♣          Max with no working doubleton.\\usually 4card support but ok with 3 if supermax.
   3♦         Retransfer to 3♥.
  3♥          Random average 4card ♥support, not max, not garbage

  2♥            Transfer to 2♠.
  Pass          Must bid 2♠.
  2♥          Forced to bid 2♥.
   2♠         5♥, 4♠ invite exactly.
   2NT         Invitational, may be unbalanced.
   3♣         4+ cards, mild Slam try.
    3♦        No stopper in ♦, denies ♥ fit.
     4♣       5♥,5♣
      4♥      HonorX suggest 5-2 fit.
    3♥        All hands with 3+♥.
    3♠        No stopper in ♠, denies ♥ fit.
     4♣       5♥,5♣
      4♥      HonorX suggest 5-2 fit.
    3NT        2♥. Both unbid suits well stopped.
    4♦        Cue-bid for ♣.
    4♠        Cue-bid for ♣.
   3♦         4+ cards, mild Slam try.
    3♥        All hands with 3+♥.
    3♠        No stopper in ♠, denies ♥ fit.
     4♦       5♥, 5♦
      4♥      HonorX suggest 5-2 fit.
    3NT        2♥. Both unbid suits well stopped.
    4♣        Cue-bid for ♦.
    4♠        Cue-bid for ♦.
   3♥         Invitational
   3♠         Splinter, Sets ♥ as trumps.
   3NT         choice of game, may be unbalanced.
   4♣         Splinter, Sets ♥ as trumps.
   4♦         Splinter, Sets ♥ as trumps.
   4♥         Mild balanced, Slam try.
   4NT         Quantitative.
  2♠          Most hands, forced to bid.
   2NT         Invitational, may be unbalanced.
   3♣         4+ cards, mild Slam try.
    3♦        No stopper in ♦, denies ♠ fit.
     4♣       5♠,5♣
      4♠      HonorX suggest 5-2 fit.
    3♥        No stopper in ♦, denies ♠ fit.
     4♣       5♠,5♣
      4♠      HonorX suggest 5-2 fit.
    3♠        All hands with 3+♠
    3NT        2♠. Both unbid suits well stopped.
    4♦        Cue-bid for ♣.
    4♥        Cue-bid for ♣.
   3♦         4+ cards, mild Slam try.
    3♥        No stopper in ♣, denies ♠ fit.
     4♦       5♠,5♦
      4♠      HonorX suggest 5-2 fit.
    3♠        All hands with 3+♠
    3NT        2♠. Both unbid suits well stopped.
    4♣        Cue-bid for ♦.
    4♥        Cue-bid for ♦.
    4♠        To Play.
   3♥         5+♥, Slam try.
    3♠        Sets ♠ as trumps.
    3NT        2-2 Majors or No Major honors.
    4♣        Cue-bid for ♥.
    4♦        Cue-bid for ♥.
    4♥        Very bad.
    4♠        Very bad.
    4NT        RKC for ♥.
   3♠         Invitational, 6+♠
   3NT         choice of game, may be unbalanced.
   4♣         Splinter, Sets ♠ as trumps.
   4♦         Splinter, Sets ♠ as trumps.
   4♠         Mild balanced, Slam try.
   4NT         Quantitative.
  2NT          xx/Ax/Kx in a minor, 4+card ♠.
   3♣         Asking bid for minor?
    3♦        ♦
    3♠        ♣
   3♥         Retransfer to 3♠.
  3♣          xx/Ax/Kx in ♥, 4+card ♠.
   3♥         Retransfer to 3♠.
  3♦          Max with no working doubleton.\\usually 4card support but ok with 3 if supermax.
   3♥         Retransfer to ♠.
  3♠          Random average 4card ♠support, not max, not garbage

  2♠            5+♣ transfer. Denies 4 Majors.
  2NT          Accepts ♣ invite.\\(Honorxx and side stoppers)
   3♣         To Play.
   3♦         5+♣-4♦ (not 5431shape), GF
   3♥         Slam try. shortness in ♥
   3♠         Slam try. shortness in ♠
   3NT         Light game try. Invitational.
   4NT         Quantitative. \\or Balanced Slam try in ♣.
  3♣          Declines ♣ invite.
   Pass         To Play.
   3♦         5♣4♦22 or 6♣-4♦, GF
   3♥         shortness, Slam try.
   3♠         shortness, Slam try.
   3NT         15 HCP, Balanced slamtry with ♣.
   4NT         16-17 HCP, Balanced slamtry with ♣\\

  2NT            5+♦ transfer. Denies 4 Majors.\\May be 5♣, 5♦.
  3♣          Bad! ♦.
   Pass         5-5 in minors, weak.
   3♦         To Play.
  3♦          Good ♦.
   Pass         To Play. weak with ♦ or 5-5 in minors.
   3♥         Slam try. shortness in ♥
   3♠         Slam try. shortness in ♠
   3NT         Light game try. Invitational.
   4♣         4♣-5♦22 or 4♣-6+♦, GF
   4NT         Quantitative. \\or Balanced Slam try in ♦.

  3♣            GF balanced Puppet Stayman, \\Not 44 Majors.
  3♦          at least one 4card major, not 4333.
   3♥         4 card ♠.
   3♠         4 card ♥.
   3NT         No interest in 4 Majors.
  3♥          5♥
  3♠          5♠
  3NT          No 4 card Majors or any 4333.

  3♦            5+,5+ minors
  3♥          Sets ♣ as trumps
   3NT         Bad for slam.
   4♣         Bad for slam.
   4♦         Bad for slam.
   4♥         Slammish.
   4♠         Slammish.
  3♠          Sets ♦ as trumps
   3NT         Bad for slam.
   4♣         Bad for slam.
   4♦         Bad for slam.
   4♥         Slammish.
   4♠         Slammish.
  3NT          Bad for slam.
  4NT          super max, No good fit.

  3♥            31(54), 9+HCP.
  3♠          3-3 minors, asks which longer
   3NT         5♣
    4♣        Non forcing
    4♦        RKC in ♣.
    4♥        Cue-bid.
    4♠        Cue-bid.
   4♣         5♦
    4♦        Non forcing.
    4♥        RKC in ♦.
    4♠        Cue-bid.
  3NT          Good or 4 ♥'s. To Play.
   4♣         4♣-5♦, slam try
    4♥        RKC in other minor♦
    4♠        cue bid for ♦.
    4NT        To Play.
   4♦         4♦-5♣. slam try
    4♥        RKC in other minor ♣.
    4♠        cue bid for ♣.
    4NT        To Play.
  4♣          4+cards, but NF, not very good H holding.
   Pass         Non forcing.
   4♦         RKC for ♣.
   4♥         Cue-bid
    4♠        RKC for ♣.
   4♠         Cue-bid
    4NT        RKC for ♦.
  4♦          4+cards, but NF, not very good H holding.
   Pass         Non forcing.
   4♥         RKC for ♦.
    4♠        RKC for ♣.
   4♠         Cue-bid
    4NT        RKC for ♦.
  4♥          RKC for ♣.
   4♠         RKC for ♥.
   4NT         5 very good ♣.
   5♣         5 very good ♦.
  4♠          5 (good 4) cards, to play
   4NT         RKC for ♠.
   5♣         5 very good ♣. slam try.
   5♦         5 very good ♦. Slam try.
  4NT          RKC for ♦.

  3♠            13(54), 9+HCP.
  3NT          Good or 4 ♠'s. To Play.
   4♣         4♣-5♦, slam try
    4♥        RKC in other minor♦
    4♠        cue bid ♦.
    4NT        To Play.
   4♦         4♦-5♣. slam try
    4♥        RKC in other minor ♣.
    4♠        cue bid for ♣.
    4NT        To Play.
  4♣          seminatural, forcing to responder's 5m, NF.
   Pass         Non forcing.
   4♦         NF
   4♥         5♣.
    4♠        RKC for ♣.
   4♠         5♦.
    4NT        RKC for ♦.
  4♦          4+♦, no ♣ fit, NF
   4♥         RKC for ♦.
  4♥          5 (good 4) cards, to play
   4♠         RKC for ♥.
   4NT         5 very good ♣.
   5♣         5 very good ♦.
  4♠          RKC for ♣.
  4NT          RKC for ♦.

  3NT            To Play.

  4♣            Ask aces
  4♦          0 Aces or 4 Aces.
  4♥          1 Ace
  4♠          2 Aces
  4NT          3 Aces

  4♦            Texas Transfer to 4♥
  4♥          Transfer accepted.
   4NT         RKC in ♥.

  4♥            Texas Transfer to 4♠
  4♠          Transfer accepted.
   4NT         RKC in ♠.


After bidding 2♣
  2♦            0-1 Controls. Not Yet GF.
  2♥          Kokish: 5+ ♥ or GF balanced, forces 2♠
   2♠         forced bid 2♠.
    2NT        GF Balanced.
    3♣        Natural. with 5♥.
     4♥       4card supp, no side A/K/sing/void
    3♦        Natural. with 5♥.
     4♥       4card supp, no side A/K/sing/void
    3♥        non forcing.
    3♠        Natural. with 5♥.
     4♥       4card supp, no side A/K/sing/void
    3NT        Natural. with 5♥.
     4♥       4card supp, no side A/K/sing/void
  2♠          5+♠
   2NT         GF, denies 5♦, 5♥ or 3♠.
    3♥        4♥.
     3NT       To Play.
     4♣       Cue-bid for ♠.
     4♦       Cue-bid for ♠.
    3♠        6+♠.
     3NT       To Play.
     4♣       Cue-bid for ♠.
     4♦       Cue-bid for ♠.
   3♣         2nd negative.
    3♠        Non forcing.
   3♦         5+♦, GF
   3♥         5+♥, GF
   3♠         usually Balanced raise not bust.
   3NT         To Play.
   4♣         Splinter, Usually 4+♠, not bust.
   4♦         Splinter, Usually 4+♠, not bust.
   4♥         Splinter, Usually 4+♠, not bust.
   4♠         4card supp no side A/K/sing/void but 4+ HCP
  2NT          22-24(-)
  3♣          6(5)+♣, forcing
   3♦         2nd negative.
  3♦          6(5)+♦, forcing
   4♦         forcing.
  3♥          6+♥, GF
   3♠         Natural.
   3NT         Natural.
   4♣         Cue-bid for ♥.
   4♦         Cue-bid for ♥.
  3♠          6+♠, GF
   3NT         Natural.
   4♣         Cue-bid for ♠.
   4♦         Cue-bid for ♠.
  3NT          Based on running SOLID minor and side stops
  4♣          Sets ♣ suit, demands Cue-bid.
  4♦          Sets ♣ suit, demands Cue-bid.
  4♥          No slam, To Play.
  4♠          No slam, To Play.

  2♥            2 Controls. GF
  2♠          Natural.
   4♣         Splinter
   4♦         Splinter
   4♥         Splinter
   4♠         Balanced, no side A/K but some extra Queen.
  2NT          Natural.
  3♣          Natural.
   4♦         Splinter
   4♥         Splinter
   4♠         Splinter
   5♣         Balanced, no side A/K but some extra Queen.
  3♦          Natural.
   4♥         Splinter
   4♠         Splinter
   5♣         Splinter
   5♦         Balanced, no side A/K but some extra Queen.
  3♥          Natural.
   4♥         To Play.
   4♠         Splinter
   5♣         Splinter
   5♦         Splinter
   5♥         Balanced, no side A/K but some extra Queen.
  3♠          Sets ♠ as trump, demands Cue-bid.
  3NT          Based on running minor and side stops.
  4♣          Sets ♣ as trump, demands Cue-bid.
  4♦          Sets ♦ as trump, demands Cue-bid.
  4♥          No slam.
  4♠          No slam.

  2♠            3 Controls, not in the same suit. GF
  2NT          Natural.
  3♣          Natural.
   4♦         Splinter
   4♥         Splinter
   4♠         Splinter
   5♣         Balanced, no side A/K but some extra Queen.
  3♦          Natural.
   4♥         Splinter
   4♠         Splinter
   5♣         Splinter
   5♦         Balanced, no side A/K but some extra Queen.
  3♥          Natural.
   4♥         To Play.
   4♠         Splinter
   5♣         Splinter
   5♦         Splinter
   5♥         Balanced, no side A/K but some extra Queen.

  2NT            AK in the same suit. No other Controls. GF.
  3♣          Equals to NT rebid.
   3♦         No 5 card Majors.
    3♥        4♥.
    3♠        4♠
    3NT        To Play.
    4♣        6+
    4♦        4♦.
   3♥         5 card ♥.
   3♠         5 card ♠.
   3NT         4m333, minimum.
  3♦          Natural.
  3♥          Natural.
  3♠          Natural.
  3NT          Based on running minor, no slam, no interest in 5crd major, minimum.

  3♣            4 Controls.

  3♦            5+ Controls.

  3♥            Sound weak two in the other major♠.\\6♠(322).

  3♠            Sound weak two in the other major♥.\\6♥(322).


After bidding 2♦
  Pass            To Play.

  2♥            To Play.

  2♠            To Play.

  2NT            Artificical, Invitational + Ask?
  3♣          3+♣
   3♥         Invitational
   3♠         Invitational.
  3♦          3+♦
   3♥         Invitational
   3♠         Invitational.
  3♥          4522, minimum
  3♠          4♠-6♥. Forcing.
  3NT          4522, maximum
  4♥          5♠, 6♥

  3♣            To Play.

  3♦            Slam try. Artificical.
  3♥          forced to bid 3♥.
   3♠         Sets ♠ as trumps. Solid Slam try.
    3NT        2 of the top 3 ♥.
    4♣        Cue-bid
    4♦        Cue-bid
   3NT         Ask for cuebid, sets ♠ as trump. soild Slam try.
   4♣         cuebid, sets ♥ as trump. solid Slam try.
   4♦         cuebid, sets ♥ as trump. solid Slam try.
   4♥         v. mild slamtry (needs 14-15 all in keycards and a side stiff)
   4♠         v. mild slamtry (needs 14-15 all in keycards and a side stiff)
   4NT         6 Key cards for RKC

  3♥            About 6 HCP. no minors quacks

  3♠            About 6 HCP. no minors quacks

  3NT            To Play.

  4♣            RKC for ♥.

  4♦            RKC for ♠.

  4♥            To Play. any strength

  4♠            To Play. any strength


After bidding 2♥
  2♠            mildly constructive, NF (no game unless fit, so raisable)

  2NT            Ogust, but two forms, depending on if weak two promises 5 or 6 cards.
  3♣          bad hand, bad suit, 6 cards (Vul)\\minimum, 5 cards (Non Vul)
   3♦         GF
   3♥         To Play.
   3♠         GF
   3NT         To Play.
  3♦          bad hand, good suit, 6 cards (Vul)\\Maximum, 5 cards (Non-Vul)
   3♥         To Play.
   3♠         GF
   3NT         To Play.
  3♥          good hand, bad suit, 6 cards (Vul)\\minimum and 6 cards (non-Vul)
   3♠         GF
   3NT         To Play.
  3♠          good hand, good suit, 6 cards (Vul)\\maximum and 6 cards (non-Vul)
   3NT         To Play.
  3NT          AKJTxx (Vul)\\AKQxx (non Vul)\\to play but correctable with freak

  3♣            mildly constructive, NF (no game unless fit, so raisable)

  3♦            mildly constructive, NF (no game unless fit, so raisable)

  3♥            Preemptive.

  3♠            GF good 6card suit

  3NT            Non-correctable. To Play.

  4♣            GF good 6card suit

  4♦            GF good 6card suit


After bidding 2NT
  3♣            Stayman, promises 4card major
  3♦          no major
   3♥         4♥, 5+♠, GF (smolen)
    3♠        Sets ♠, Bad slam hand.
    3NT        2♠.
     4♣       Natural. Slam try.
     4♦       Natural. Slam try.
     4♥       6+♠.
     4NT       Quantitative.
    4♣        Sets ♠, Good slam hands.
     4♥       Retransfer to 4♠.
   3♠         5+♥, 4♠, (smolen)
    3NT        2♥.
     4♦       6+♥
     4NT       Quantitative.
    4♣        Sets ♥, Good slam hands.
     4♦       Natural. Slam try.
     4♥       6+♥ To Play.
    4♥        sets ♥, bad slam cards
   3NT         To Play.
   4♣         5+cards, some 4M, slamtry
    4♦        RKC for ♣
    4♥        Cue-bid.
    4♠        Cue-bid.
    4NT        To Play.
    5♣        bad.
   4♦         5+cards, some 4M, slamtry
  3♥          4+♥, May have 4♠.
   3♠         Sets ♥ as trumps.
   3NT         To Play. promises 4♠.
   4♣         5+♣, 4♠, Slam try.
    4♦        RKC for ♣
    4♠        4♠.
     4NT       To Play.
      5♦      RKC for ♠.
    4NT        To Play.
   4♦         5+♦, 4♠, Slam try.
    4♥        RKC for ♦.
    4♠        4♠.
     4NT       To Play.
      5♣      RKC for ♠.
    4NT        To Play.
   4♥         No slam interest.
   4NT         Quantitative. 4♠, NF
    5♣        5 cards ♣.
    5♦        5 cards ♦.
  3♠          4+♠, denies 4♥.
   3NT         To Play. Promises 4♥.
   4♣         5+cards, 4♥, slamtry
    4♦        RKC for ♣.
    4♥        Cue-bid
    4♠        To Play.
    4NT        To Play.
    5♣        bad
   4♦         5+cards, 4♥, slamtry
    4♥        RKC for ♦.
    4♠        To Play.
    4NT        To Play.
    5♣        bad
    5♦        bad.

  3♦            Transfer to 3♥.
  3♥          Most hands , Forced to bid.
   3♠         5+-5+ Majors, at least mild slam interest.
    3NT        To Play.
    4♣        Sets ♥ good for Slam try.
     4♦       LTTC, Last train to chatanooga.
     4♥       To Play.
    4♦        Sets ♠ good for Slam try.
     4♥       LTTC, Last train to Chatanooga.
     4♠       To Play.
    4♥        Bad for slam
    4♠        Bad for slam
   3NT         Choice of game, May be unbalanced
   4♣         4+♣, Slam try.
    4♦        RKC with 6 key cards setting ♣/♠ as trumps.
    4♥        3[2]+cards minimum.
    4♠        RKC with 6 key cards setting ♣/♠ as trumps.
    4NT        minimum, no fit.
    5♣        2♥, 4+♣. minimum.
   4♦         4+♦, Slam try.
    4♥        3[2]+cards minimum.
    4♠        RKC with 6 key cards setting ♦/♠ as trumps.
    4NT        minimum, no fit.
    5♦        2♥, 4+♦. minimum.
   4♥         6+♥, mild Slam try.

  3♥            Transfer to 3♠
  3♠          Most hands , Forced to bid.
   3NT         Choice of game, May be unbalanced
   4♣         4+♣, Slam try.
    4♦        RKC with 6 key cards setting ♣/♠ as suits.
    4♥        RKC with 6 key cards setting ♣/♠ as suits.
    4♠        To Play.
    4NT        To Play.
    5♣        To Play.
   4♦         4+♦, Slam try.
    4♥        RKC with 6 key cards setting ♦/♠ as suits.
    4♠        To Play.
    4NT        To Play.
    5♦        To Play.
   4♥         5+♠, 5+♥, No slam, choice of game.
   4♠         6+♠, mild Slam try.

  3♠            Slam try in one or two minors, forces 3NT, denies 4 card Majors
  3NT          Forced to bid.
   4♣         5+♣-4+♦, ♣ longer or equal, Slam try.
    4♦        sets ♦.
    4♥        RKC for ♣.
    4♠        LTTC, Last train to chatanooga. ♣.
     4NT       RKC for ♣.
    4NT        To Play.
    5♣        Very bad.
    5♦        Very bad.
    6NT        To Play.
   4♦         5+♦-4+♣, ♦ longer or equal, Slam try.
    4♥        sets ♣ minor.
     4♠       RKC for ♣.
    4NT        To Play.
    5♣        very bad.
    5♦        very bad.
    6NT        To Play.
   4♥         One suited 6+ ♣, Slam try.
    4♠        RKC for ♣.
    4NT        To Play.
    5♣        To Play.
   4♠         One suited 6+ ♦, Slam try.
    4NT        To Play.
    5♣        RKC for ♦.
    5♦        To Play.
   4NT         4-4 in minors , Invitational to 6.
   5NT         4-4 in minors , Invitational to 7.

  3NT            To Play.

  4♣            Gerber, Ask Aces

  4♦            Transfer to 4♥

  4♥            Transfer to 4♠.

  4NT            Quantitative.


After bidding 3♣
  3♦            Artificial, GF, asks for 3card major, else 3NT.

  3♥            6+♥

  3♠            6+♠

  3NT            To Play.

  4♦            RKC in ♣.


After bidding 3♦
  4♣            art ♦ flag, slam interest
  4♦          Bad.
  4♥          Cue-bid
  4♠          Cue-bid


After bidding 3♥
  4♣            Artificical M flag, slam interest
  4♦          Cue-bid
  4♥          Bad.


After bidding 3♠
  4♣            Artificical, M flag, slam interest
  4♦          Cue-bid
  4♥          Cue-bid.
  4♠          Bad.


After bidding 3NT
  4♣            Pass or correct

  4♦            Asks for shortness.
  4♥          short in ♥.
  4♠          short in ♠
  4NT          7222
  5♣          short in ♦.
  5♦          Short in ♣.

  4NT            Asks for length
  5♣          7 cards in either minor.
  5♦          8 cards in either minor.

  5♣            Pass or correct.

  5♦            Pass or correct.

  5NT            Any pt by responder asks opener to bid 7 if suit runs opposite a void

  6♣            Pass or correct.

  6♦            Pass or correct.


After bidding 4♣
  4♦            Artificical Slam try in ♣.

  4♥            To Play.

  4♠            To Play.


After bidding 4♦
  4♥            To Play.

  4♠            To Play.

  5♣            Artificical Slam try in ♦.


After bidding 4♥
  4♠            RKC in ♥.

  4NT            Cue-bid ♠ for ♥ contract.

  5♣            Cue-bid ♣.

  5♦            Cue-bid ♦.


After bidding 4♠
  4NT            RKC in ♠.

  5♣            Cue-bid ♣.

  5♦            Cue-bid ♦.

  5♥            Cue-bid ♥.


After bidding 2♠
  2♠            mildly constructive, NF (no game unless fit, so raisable)

  2NT            Ogust, but two forms, depending on if weak two promises 5 or 6 cards.
  3♣          bad hand, bad suit, 6 cards (Vul)\\minimum, 5 cards (Non Vul)
   3♦         GF
   3♥         To Play.
   3♠         GF
   3NT         To Play.
  3♦          bad hand, good suit, 6 cards (Vul)\\Maximum, 5 cards (Non-Vul)
   3♥         To Play.
   3♠         GF
   3NT         To Play.
  3♥          good hand, bad suit, 6 cards (Vul)\\minimum and 6 cards (non-Vul)
   3♠         GF
   3NT         To Play.
  3♠          good hand, good suit, 6 cards (Vul)\\maximum and 6 cards (non-Vul)
   3NT         To Play.
  3NT          AKJTxx (Vul)\\AKQxx (non Vul)\\to play but correctable with freak

  3♣            mildly constructive, NF (no game unless fit, so raisable)

  3♦            mildly constructive, NF (no game unless fit, so raisable)

  3♥            mildly constructive, NF (no game unless fit, so raisable)

  3♠            Preemptive.

  3NT            Non-correctable. To Play.

  4♣            GF good 6card suit

  4♦            GF good 6card suit


After bidding 1♣
  1♦            4+cards, Forcing 1 round,\\occ. 6-7 HCP, Balanced. \\Usually denies 4 card Majors.
  1♥          4 cards, Non forcing.
   1♠         Natural or 4SGF
    1NT        12-14 HCP.
     2♣       weak.
     2♦       weak.
     2♥       Game Forcing.
     2♠       Game Forcing.
     2NT       Invitational
     3♣       Invitational
     3♦       Invitational
     3♥       Game Forcing.
     3♠       Game Forcing.
     3NT       To Play.
    2♣        5+♣, Unbalanced.
    2♦        3+♦, Unbalanced.
    2♥        Like a double-raise in ♠, 15+ HCP 4♠
     2♠       To Play.
     3♣       Game Forcing. May not have 4 card ♠.
     3♦       Game Forcing. May not have 4 card ♠.
     3♥       Game Forcing. May not have 4 card ♠.
     3♠       11+ HCP and 4♠.
     3NT       To Play.
     4♠       To Play.
    2♠        Like normal 1♣-1♠-2♠.
    2NT        18-19 HCP.
   1NT         Non forcing
   2♣         Non forcing.
   2♦         Non forcing.
   2♥         Non forcing.
   2♠         Natural, 4+♦-4+♠, 15+ HCP
   2NT         Invitational.
   3♣         Invitational.
   3♦         Invitational.
  1♠          4 cards, Non forcing.
   2♥         4th suit forcing.
    2NT        Non forcing.
    3♣        Non forcing.
    3♦        Invitational.
    3NT        To Play.
  1NT          12-14 HCP. No 4 card Majors.
  2♣          6+♣.
  2♦          4+♦ Fit, or 3 card Fit with a stiff Major. Denies 4 card Major.
  2♥          Game Forcing. Unbalanced.
  2♠          Game Forcing. Unbalanced.
  2NT          18-19 HCP. Balanced No 4 card major.
   3♣         Game Forcing.
   3♦         Game Forcing.
   3♥         Game Forcing.
   3♠         Game Forcing.
   3NT         To Play.
  3♣          6+♣, 16-18 HCP.
  3♦          4+♦, 15-17 HCP. Unbalanced. No 4 card Majors.
  3♥          Splinter, 18+ HCP. 4+♦, Denies 4 card Majors.
  3♠          Splinter, 18+ HCP. 4+♦, Denies 4 card Majors.
  3NT          Solid ♣ suit, at least partial side stops
   4♣         Sets ♣ as trumps.
  4♣          6+ Nice ♣, 4 good ♦, Slam try.
  4♦          7♣-4♦ freak, but minimum.

  1♥            4+ cards. May bypass bad 4card ♦ suit.
  1♠          4 Cards.
   1NT         To Play.
   2♣         To Play.
   2♦         4th suit forcing to game.
   2♥         To Play.
   2♠         ♠ support.
   2NT         Invitational
   3♣         Invitational
   3♦         Invitational
  1NT          12-14 HCP. Denies 4♠.
   2♣         Transfer to 2♦. Sign off or invite.
    2♦        Forced to bid 2♦.
     2♥       Unbalanced. 5+♥
     2NT       Balanced 5♥.
     3♥       Mild distributional.
   2♦         Artificical, Game Forcing. checkback.
    2♥        3♥.
     2♠       4♠.
     2NT       waiting, 5♥.
     3♣       Natural. may have 4 card ♥.
     3♦       Natural. may have 4 card ♥.
     3♥       Sets ♥ as trumps.
     3♠       Splinter.
    2♠        4♠.
    2NT        Natural.
    3♣        Natural.
    3♦        Natural.
   2♥         To Play.
   2NT         4♥ and Invitational.
   3♣         Distributional, Invitational.
   3♦         Distributional, Invitational.
   3♥         Distributional, Invitational.
  2♣          6+♣ or 5♣-4♦.
   2♦         New minor forcing. Asks ♥ support.
   2♠         forcing to game.
  2♦          Reverse, 17+ HCP.
   2♥         Weak.
    2♠        Game Forcing., 4th suit forcing.
    2NT        minimum, Non forcing.
    3♣        minimum, Non forcing.
    3♦        5+♦, Invitational
    3♥        Game Forcing, doubleton no side stop.
    4♥        3♥, minimum.
   2♠         Forcing one round. 4th suit forcing.
    2NT        22(45) or ♠ stopper.
     3♣       weak.
     3♦       Game Forcing.
     3♥       Game Forcing.
    3♣        minimum. No ♠/♥ support.
     3♦       Game Forcing.
     3♥       Game Forcing.
     3♠       weak.
    3♦        Game Forcing.
    3♥        Game Forcing.
    3♠        3♠.
    4♥        3♥, minimum.
   2NT         6-12 HCP, 4♥, Forcing one round.
    3♣        Non forcing.
     3NT       8-12.
    3♦        Non forcing.
     3NT       8-12.
    3♥        Game Forcing.
    3♠        Game Forcing. 4th suit forcing.
   3♣         Game Forcing. usually 4♥
   3♦         Game Forcing. usually 4♥, Artificical 4th forcing to game.
   3♥         6+♥, constructive.
   3♠         Natural.
   3NT         13-14, HCP.
  2♥          4♥, or 3♥ with singleton or void.\\or bad doubleton without 4♠.
   2♠         seminatural game/slamtry
    2NT        3♥ Fit, minimum, ♦ stopper or length
    3♣        3♥ Fit min, 5♣, \\No ♦ stopper or length
    3♦        3♥ Fit, min, No ♦ stopper, Non forcing
    3♥        4♥, minimum.
    3♠        4♠-4♥, max
    3NT        3♥ Fit, max, ♦ stopper
    4♣        4♥ Fit, good for slam, Artificical.
    4♥        4♥ Fit, bad for slam
   2NT         Descriptive invite, NF, just 4♥
    3♦        Descriptive invite, NF, just 4♥
   3♣         Descriptive invite, NF, just 4♥.
   3♦         seminatural game/slamtry
    3♥        other minimums.
    3♠        3♥ Fit, max, \\No ♠ stopper/length
    3NT        3♥ Fit, max, ♠ stopper/length
    4♣        4♥ Fit, good for slam, Artificical.
    4♦        3♥, max, No ♠ stopper, 1345
    4♥        4♥ Fit, max, bad for slam.
   3♥         5+♥, Invitational.
   3NT         Choice of game, just 4♥.
    Pass        passes with 3fit or some 4333's.
  2♠          jump shift, Game Forcing. 4♠.
  2NT          18-19, Balanced, may have 4♠.
   3♣         Artificical signoff signal.\\or choice of game at 5 minor.
    3♦        Denies 3 ♥.
     Pass       To Play.
     3♥       To Play.
     3♠       5+♥+4♠, Game Forcing.
     3NT       To Play.
    3♥        3♥.
     Pass       To Play.
     3♠       5♥+4♠, Game Forcing. choice of game.
     3NT       Choice of game. with 5card ♥, may have mild slamtry.
      Pass      To Play.
      4♣      Artificical, slammish max
      4♥      To Play.
     4♥       To Play.
    3♠        4♠.
     Pass       To Play.
     3NT       Choice of game. with 5card ♥, may have mild slamtry.
      Pass      To Play.
      4♣      Artificical, slammish max
      4♥      To Play.
     4♥       To Play.
     4♠       To Play.
   3♦         New minor forcing.\\checkback, checking other 4♠.
    3♥        3♥
     3NT       Non forcing, interest in minor.
     4♣       Natural. Slammish.
     4♦       Natural. Slammish.
    3♠        Denies 3♥.\\4♠.
     3NT       Non forcing.
     4♣       Sets ♣ suit.
     4♦       Natural. Slammish.
    3NT        Default.
     4♣       Natural. Slam try.
     4NT       Quantitative.
   3♥         6+, Game Forcing.
    4♣        Artificical, flag for ♥, slammish.
    4♥        Bad for slam.
   3♠         4-4 Majors Game Forcing.
    3NT        To Play.
    4♣        Artificical, flag for ♠.
    4♠        To Play.
  3♣          6+♣, 16-18 HCP.
   3♦         Waiting, looking for 3♥ fit \\or 4th suit ♠ stopper usually.
   3♥         6+♥ or can play opp a doubleton
   3♠         5+♥-4♠.
   3NT         To Play.
   4♣         5+♣
   4♦         4+♦.
   4NT         Quantitative.
  3♦          Any 15+ HCP.
   3♥         Double negative. \\(Pass and 4♥ are the only options).
   3♠         Asking bid
    3NT        1♥, 18+
    4♣        1♥, 15-17 HCP.
    4♦        Splinter ♦.
  3♥          14-15 HCP. 2425
  3♠          18+HCP. 2425
  3NT          Solid ♣ suit, at least partial side stops.
   4♦         Sets ♦ suit as trump.
  4♣          6+♣, 4♥, Slam try. GF
  4♦          18-19HCP, 4card raise 4432/4333
  4♥          minimum 7♣-4♥ gamble, honors only in the 2 suits (♥♣).

  1♠            4+ cards. May bypass bad 4card ♦ suit.
  1NT          12-14 HCP. Balanced.
   2♣         Transfer to 2♦. Sign off or invite.
    2♦        Forced to bid 2♦.
     2♠       Unbalanced. 5+♠
     2NT       Balanced 5♠.
     3♠       Mild distributional.
   2♦         Artificical, Game Forcing. checkback.
    2♥        4♥.
     2♠       4♠.
     2NT       waiting, 5♥.
     3♣       Natural. may have 4 card ♥.
     3♦       Natural. may have 4 card ♥.
     3♥       Sets ♥ as trumps.
     3♠       Splinter.
    2♠        3♠.
    2NT        Natural.
    3♣        Natural.
    3♦        Natural.
   2♥         To Play.
   2♠         To Play.
   2NT         4♠ and Invitational.
   3♣         Distributional, Invitational.
   3♦         Distributional, Invitational.
   3♥         Distributional, Invitational.
  2♣          6+♣ or \\5♣ with singleton ♠ sometimes.
   2♦         New minor forcing.
   2♥         weak
   2♠         weak.
  2♦          Reverse, 17+, occasionally a good 3card suit or 1444
   2♥         Natural. Forcing one round.
   2♠         Weak.
    2NT        minimum, Non forcing.
     3♣       weak.
     3♦       Game Forcing.
     3♥       Game Forcing.
    3♣        minimum, Non forcing.
     3♦       Game Forcing.
     3♥       Game Forcing.
     3♠       weak.
    3♦        Game Forcing.
    3♥        Game Forcing.
    3♠        Game Forcing.\\Doubleton and no side stop.
    4♠        3♠ minimum,
   2NT         6-12 HCP, 4♠, Forcing one round.
    3♣        Non forcing.
     3NT       8-12.
    3♦        Non forcing.
     3NT       8-12.
    3♥        Game Forcing. 4th suit forcing.
    3♠        Game Forcing.
   3♣         Game Forcing. usually 4♠
   3♦         Game Forcing. usually 4♠, Artificical 4th forcing to game.
   3♥         4+♥, constructive.
   3♠         constructive.
   3NT         13-14, HCP.
  2♥          Reverse, 17+HCP, occasionally, 1444
   2♠         Weak.
    2NT        minimum, Non forcing.
     3♣       weak.
     3♦       Game Forcing.
     3♥       Game Forcing.
    3♣        minimum, Non forcing.
     3♦       Game Forcing.
     3♥       Game Forcing.
     3♠       weak.
    3♦        Game Forcing.
    3♠        Game Forcing.\\Doubleton and no side stop.
    4♠        3♠ minimum,
   2NT         6-12 HCP, 4♠, Forcing one round.
   3♣         Game Forcing. usually 4♠
   3♦         Game Forcing. usually 4♠, Artificical 4th forcing to game.
   3♥         4+♥, constructive.
   3♠         constructive.
   3NT         13-14. HCP.
  2♠          4♠ Fit, or 3♠ Fit with singleton/void or bad doubleton.
   2NT         Descriptive invite, NF, just 4♠
   3♣         Descriptive invite, NF, just 4♠
   3♦         seminatural game/slamtry
    3♥        3♠ Fit, max, \\No ♥ stopper/length.
    3♠        Any minimum.
    3NT        3♠ Fit, max, ♥ stopper/length
    4♣        4♠ Fit, good for slam, Artificical.
    4♦        4♦, 3♠, max, 3145
    4♠        4♠ Fit, max, bad for slam.
   3♥         seminatural game/slamtry
    3♠        minimum.
    3NT        3♠ Fit, max, at least some ♦ length.
    4♣        4♠ Fit, good for slam, Artificical.
    4♥        3♠4♥1♦5♣, max
    4♠        4♠ Fit, max, bad for slam.
   3♠         5+♠, Invitational.
   3NT         choice of game, just 4♠,
    Pass        opener passes with 3♠fit or some 4333's.
    4♠        To Play.
  2NT          18-19 HCP, Balanced.
   3♣         Artificical signoff signal.\\or choice of game at 5 minor.
    3♦        Denies 3 ♠.
     Pass       To Play.
     3♥       5♠ + 4+♥.
     3♠       To Play.
     3NT       To Play.
    3♥        3♣.
     Pass       To Play.
     3♠       5♥+4♠, Game Forcing. choice of game.
     3NT       Choice of game. with 5card ♥, may have mild slamtry.
      Pass      To Play.
      4♣      Artificical, slammish max
      4♥      To Play.
     4♥       To Play.
    3♠        3♠.
     Pass       To Play.
     3NT       Choice of game. with 5card ♠, may have mild slamtry.
      Pass      To Play.
      4♣      Artificical, slammish max
       4♠     To Play.
      4♠      To Play.
     4♠       To Play.
   3♦         New minor forcing.\\checkback, checking other 4♥ or 3♠.
    3♥        4♥
     3NT       Non forcing.
     4♣       Natural. Slammish.
     4♦       Natural. Slammish.
    3♠        3♠.
     3NT       Non forcing.
     4♣       Natural. Slammish.
     4♦       Natural. Slammish.
    3NT        Default.
     4♣       Natural. Slam try.
     4NT       Quantitative.
   3♥         5+♠+4♥, Game Forcing.
    3♠        3♥ exactly.
    3NT        2-2♠♥, To Play.
    4♣        Artificical, flag for ♥, slammish.
     4♥       To Play.
     4♠       To Play.
    4♦        Artificical, flag for ♠, slammish.
    4♥        minimum.
    4♠        minimum.
   3♠         6+, Game Forcing.
    3NT        To Play.
    4♣        Artificical, flag for ♠. slammish.
     4♠       Bad for slam.
    4♠        To Play.
  3♣          6+♣, 16-18 HCP.
  3♦          Bad 18-HCP balanced raise
   3♠         To Play.
  3♥          Any 15+ HCP, Splinter raise.
   3♠         Double negative. \\Pass or 4♠ are the only options.
    Pass        To Play.
    4♠        To Play.
   3NT         Asks for further clarification.
    4♣        1♥, 18+ HCP.
    4♦        1♥, 17 HCP.
  3♠          4225, Good 14-15 HCP.
  3NT          Solid ♣ suit, at least partial stops,
   4♣         Sets ♣ as trumps. Unbalanced.
  4♣          Great ♣, 4♠, Slam try.
  4♦          18-19 HCP. 4225
  4♥          18-19 HCP. 4333/4432 raise
  4♠          min 7♣-4♠ gamble, honors only in these 2 suits.

  1NT            8-10 HCP. No 4 card Majors. \\May have 4♦.
  2♣          6(5)+♣
  2♦          Reverse, 17+, may be (41)44
  2♥          Reverse, 17+, occ. a good 3card suit.
  2♠          Reverse, 17+, occ. a good 3card suit.
  2NT          15-16 usually 5♣ or 4441's
  3♣          6+♣, 16-18 HCP.
  3NT          Solid ♣, at least major stops.
   4♣         Sets ♣ as trumps.

  2♣            Forcing 1 round, or 4+♣, 10+ HCP. Balanced.\\(Later 3 Majors are stoppers only)
  2♦          Game Forcing. Natural. Unbalanced. Artificical Balanced.
   2♥         Natural.
   2♠         Natural.
   2NT         5♣, 11 HCP. nonforcing.
   3♥         stopper
   3♠         stopper
   3NT         15-17 HCP.
  2♥          Natural. Unbalanced. Game Forcing.
   2♠         Natural.
   3♦         stopper or Natural.
   3♠         stopper.
   3NT         15-17 HCP.
  2♠          Natural. Unbalanced. Game Forcing.
   3♥         Stopper.
   3NT         15-17 HCP.
  2NT          Non forcing, bad Balanced hand, say nothing about stoppers.
   3♣         To Play.
  3♣          Non forcing, bad unbalanced hand.
  3♦          Splinter, solid opening hand.
  3♥          Splinter, 4+♣, sound opening bid.
  3♠          Splinter, 4+♣, sound opening bid.
  3NT          18-19 HCP.

  2♦            Strong jump shift.\\\\If passed earlier, Limit raise.
  2♥          Game forcing. Natural. Unbalanced.
   2♠         stopper
   3NT         15-17, Balanced.
  2♠          Game forcing. Natural. Unbalanced.
   3♥         stopper.
   3NT         15-17, Balanced.
  2NT          NF, bad balanced hand, says nothing about stoppers
   3♦         To Play.
  3♣          Game Forcing. Natural-Unbalanced. Artificical-Balanced. \\(if opps does not bid, 3NT next bid, it shows ♣ natural).\\
  3♦          Non forcing, bad Unbalanced hand.
  3♥          Splinter, solid opening hand.
  3♠          Splinter, solid opening hand.
  3NT          18-19 HCP. Balanced.

  2♥            3 way. \\(a) invite to 3N, \\(b) strong jumpshift in ♥, \\(c) mixed 7-9 HCP ♣ raise.\\
  2♠          Asks for further description of the bid.
   2NT         4♣ and Invitational to 3NT.
   3♣         mixed with 7-9 HCP. ♣ raise.
   3♦         strong jump shift ♥.
   3♥         strong jump shift ♥.
  2NT          same but accepts an invite to 3N and wants to declare
   3NT         Invitational to 3N but just 4♣
   4♥         strong jumpshift in ♥.

  2♠            strong jump shift.\\\\If passed earlier, ♦ fit showing.

  2NT            13-15 or 18+ bal GF, no 4M\\\\If passed earlier, 10-11 HCP.
  3♣          Natural.
  3♦          Natural.\\4cards conc. usually, short in Majors.
  3♥          4cards conc. usually, short in ♠.
  3♠          4cards conc. usually, short in ♥.

  3♣            5+♣, ~4-6 HCP, NF
  3♥          Game Forcing.
  3♠          Game Forcing.

  3♦            Splinter, 5+♣, denies 4 Majors, some Slam try.
  3NT          ♦ stopper, No slam interest.
  4♣          may be minimum no ♦ stopper, or cue

  3♥            Splinter, 5+♣, denies 4 Majors, some Slam try.
  3NT          ♥ stopper, No slam interest.
  4♣          may be minimum no ♥ stopper, or cue

  3♠            Splinter, 5+♣, denies 4 Majors, some Slam try.
  3NT          ♠ stopper, No slam interest.
  4♣          may be minimum no ♠ stopper, or cue

  3NT            16-17 HCP. Balanced, GF,\\No 4 Majors.
  4♦          Sets ♦. unbalanced.

  4♣            6+♣, Preemptive.

  4♦            RKC for ♣.
  4♥          0 or 3 key cards.
   4♠         Asks for Q of trump?
    4NT        K♠+Q♣.
    5♣        No trump Q.
    5♦        K♦+Q♣.
    5♥        K♥+Q♣.
   5♦         Confirms all keycards and Q♣. \\Asks for specific King?
    5♥        K♥.
    5♠        K♠.
    5NT        K♦.
    6♣        No king.
  4♠          1 or 4 key cards.
   4NT         Asks for trump Q♣?
    5♣        No trump Q.
    5♦        K♦+Q♣.
    5♥        K♥+Q♣.
    5♠        K♠+Q♣.
   5♦         Confirms all keycards and Q♣. \\Asks for specific King?
    5♥        K♥.
    5♠        K♠.
    5NT        K♦.
    6♣        No king.
  4NT          2 key cards. without Q of trumps
  5♣          2 key cards. + Q of trumps

  4♥            Long suit. Weak.

  4♠            Long suit. Weak.


After bidding Pass
  1♣            12+ HCP, 3+♣
  1♦          4+cards, Forcing 1 round,\\occ. 6-7 HCP, Balanced. \\Usually denies 4 card Majors.
   1♥         4 cards, Non forcing.
    1♠        Natural or 4SGF
     1NT       12-14 HCP.
      2♣      weak.
      2♦      weak.
      2♥      Game Forcing.
      2♠      Game Forcing.
      2NT      Invitational
      3♣      Invitational
      3♦      Invitational
      3♥      Game Forcing.
      3♠      Game Forcing.
      3NT      To Play.
     2♣       5+♣, Unbalanced.
     2♦       3+♦, Unbalanced.
     2♥       Like a double-raise in ♠, 15+ HCP 4♠
      2♠      To Play.
      3♣      Game Forcing. May not have 4 card ♠.
      3♦      Game Forcing. May not have 4 card ♠.
      3♥      Game Forcing. May not have 4 card ♠.
      3♠      11+ HCP and 4♠.
      3NT      To Play.
      4♠      To Play.
     2♠       Like normal 1♣-1♠-2♠.
     2NT       18-19 HCP.
    1NT        Non forcing
    2♣        Non forcing.
    2♦        Non forcing.
    2♥        Non forcing.
    2♠        Natural, 4+♦-4+♠, 15+ HCP
    2NT        Invitational.
    3♣        Invitational.
    3♦        Invitational.
   1♠         4 cards, Non forcing.
    2♥        4th suit forcing.
     2NT       Non forcing.
     3♣       Non forcing.
     3♦       Invitational.
     3NT       To Play.
   1NT         12-14 HCP. No 4 card Majors.
   2♣         6+♣.
   2♦         4+♦ Fit, or 3 card Fit with a stiff Major. Denies 4 card Major.
   2♥         Game Forcing. Unbalanced.
   2♠         Game Forcing. Unbalanced.
   2NT         18-19 HCP. Balanced No 4 card major.
    3♣        Game Forcing.
    3♦        Game Forcing.
    3♥        Game Forcing.
    3♠        Game Forcing.
    3NT        To Play.
   3♣         6+♣, 16-18 HCP.
   3♦         4+♦, 15-17 HCP. Unbalanced. No 4 card Majors.
   3♥         Splinter, 18+ HCP. 4+♦, Denies 4 card Majors.
   3♠         Splinter, 18+ HCP. 4+♦, Denies 4 card Majors.
   3NT         Solid ♣ suit, at least partial side stops
    4♣        Sets ♣ as trumps.
   4♣         6+ Nice ♣, 4 good ♦, Slam try.
   4♦         7♣-4♦ freak, but minimum.
  1♥          4+ cards. May bypass bad 4card ♦ suit.
   1♠         4 Cards.
    1NT        To Play.
    2♣        To Play.
    2♦        4th suit forcing to game.
    2♥        To Play.
    2♠        ♠ support.
    2NT        Invitational
    3♣        Invitational
    3♦        Invitational
   1NT         12-14 HCP. Denies 4♠.
    2♣        Transfer to 2♦. Sign off or invite.
     2♦       Forced to bid 2♦.
      2♥      Unbalanced. 5+♥
      2NT      Balanced 5♥.
      3♥      Mild distributional.
    2♦        Artificical, Game Forcing. checkback.
     2♥       3♥.
      2♠      4♠.
      2NT      waiting, 5♥.
      3♣      Natural. may have 4 card ♥.
      3♦      Natural. may have 4 card ♥.
      3♥      Sets ♥ as trumps.
      3♠      Splinter.
     2♠       4♠.
     2NT       Natural.
     3♣       Natural.
     3♦       Natural.
    2♥        To Play.
    2NT        4♥ and Invitational.
    3♣        Distributional, Invitational.
    3♦        Distributional, Invitational.
    3♥        Distributional, Invitational.
   2♣         6+♣ or 5♣-4♦.
    2♦        New minor forcing. Asks ♥ support.
    2♠        forcing to game.
   2♦         Reverse, 17+ HCP.
    2♥        Weak.
     2♠       Game Forcing., 4th suit forcing.
     2NT       minimum, Non forcing.
     3♣       minimum, Non forcing.
     3♦       5+♦, Invitational
     3♥       Game Forcing, doubleton no side stop.
     4♥       3♥, minimum.
    2♠        Forcing one round. 4th suit forcing.
     2NT       22(45) or ♠ stopper.
      3♣      weak.
      3♦      Game Forcing.
      3♥      Game Forcing.
     3♣       minimum. No ♠/♥ support.
      3♦      Game Forcing.
      3♥      Game Forcing.
      3♠      weak.
     3♦       Game Forcing.
     3♥       Game Forcing.
     3♠       3♠.
     4♥       3♥, minimum.
    2NT        6-12 HCP, 4♥, Forcing one round.
     3♣       Non forcing.
      3NT      8-12.
     3♦       Non forcing.
      3NT      8-12.
     3♥       Game Forcing.
     3♠       Game Forcing. 4th suit forcing.
    3♣        Game Forcing. usually 4♥
    3♦        Game Forcing. usually 4♥, Artificical 4th forcing to game.
    3♥        6+♥, constructive.
    3♠        Natural.
    3NT        13-14, HCP.
   2♥         4♥, or 3♥ with singleton or void.\\or bad doubleton without 4♠.
    2♠        seminatural game/slamtry
     2NT       3♥ Fit, minimum, ♦ stopper or length
     3♣       3♥ Fit min, 5♣, \\No ♦ stopper or length
     3♦       3♥ Fit, min, No ♦ stopper, Non forcing
     3♥       4♥, minimum.
     3♠       4♠-4♥, max
     3NT       3♥ Fit, max, ♦ stopper
     4♣       4♥ Fit, good for slam, Artificical.
     4♥       4♥ Fit, bad for slam
    2NT        Descriptive invite, NF, just 4♥
     3♦       Descriptive invite, NF, just 4♥
    3♣        Descriptive invite, NF, just 4♥.
    3♦        seminatural game/slamtry
     3♥       other minimums.
     3♠       3♥ Fit, max, \\No ♠ stopper/length
     3NT       3♥ Fit, max, ♠ stopper/length
     4♣       4♥ Fit, good for slam, Artificical.
     4♦       3♥, max, No ♠ stopper, 1345
     4♥       4♥ Fit, max, bad for slam.
    3♥        5+♥, Invitational.
    3NT        Choice of game, just 4♥.
     Pass       passes with 3fit or some 4333's.
   2♠         jump shift, Game Forcing. 4♠.
   2NT         18-19, Balanced, may have 4♠.
    3♣        Artificical signoff signal.\\or choice of game at 5 minor.
     3♦       Denies 3 ♥.
      Pass      To Play.
      3♥      To Play.
      3♠      5+♥+4♠, Game Forcing.
      3NT      To Play.
     3♥       3♥.
      Pass      To Play.
      3♠      5♥+4♠, Game Forcing. choice of game.
      3NT      Choice of game. with 5card ♥, may have mild slamtry.
       Pass     To Play.
       4♣     Artificical, slammish max
       4♥     To Play.
      4♥      To Play.
     3♠       4♠.
      Pass      To Play.
      3NT      Choice of game. with 5card ♥, may have mild slamtry.
       Pass     To Play.
       4♣     Artificical, slammish max
       4♥     To Play.
      4♥      To Play.
      4♠      To Play.
    3♦        New minor forcing.\\checkback, checking other 4♠.
     3♥       3♥
      3NT      Non forcing, interest in minor.
      4♣      Natural. Slammish.
      4♦      Natural. Slammish.
     3♠       Denies 3♥.\\4♠.
      3NT      Non forcing.
      4♣      Sets ♣ suit.
      4♦      Natural. Slammish.
     3NT       Default.
      4♣      Natural. Slam try.
      4NT      Quantitative.
    3♥        6+, Game Forcing.
     4♣       Artificical, flag for ♥, slammish.
     4♥       Bad for slam.
    3♠        4-4 Majors Game Forcing.
     3NT       To Play.
     4♣       Artificical, flag for ♠.
     4♠       To Play.
   3♣         6+♣, 16-18 HCP.
    3♦        Waiting, looking for 3♥ fit \\or 4th suit ♠ stopper usually.
    3♥        6+♥ or can play opp a doubleton
    3♠        5+♥-4♠.
    3NT        To Play.
    4♣        5+♣
    4♦        4+♦.
    4NT        Quantitative.
   3♦         Any 15+ HCP.
    3♥        Double negative. \\(Pass and 4♥ are the only options).
    3♠        Asking bid
     3NT       1♥, 18+
     4♣       1♥, 15-17 HCP.
     4♦       Splinter ♦.
   3♥         14-15 HCP. 2425
   3♠         18+HCP. 2425
   3NT         Solid ♣ suit, at least partial side stops.
    4♦        Sets ♦ suit as trump.
   4♣         6+♣, 4♥, Slam try. GF
   4♦         18-19HCP, 4card raise 4432/4333
   4♥         minimum 7♣-4♥ gamble, honors only in the 2 suits (♥♣).
  1♠          4+ cards. May bypass bad 4card ♦ suit.
   1NT         12-14 HCP. Balanced.
    2♣        Transfer to 2♦. Sign off or invite.
     2♦       Forced to bid 2♦.
      2♠      Unbalanced. 5+♠
      2NT      Balanced 5♠.
      3♠      Mild distributional.
    2♦        Artificical, Game Forcing. checkback.
     2♥       4♥.
      2♠      4♠.
      2NT      waiting, 5♥.
      3♣      Natural. may have 4 card ♥.
      3♦      Natural. may have 4 card ♥.
      3♥      Sets ♥ as trumps.
      3♠      Splinter.
     2♠       3♠.
     2NT       Natural.
     3♣       Natural.
     3♦       Natural.
    2♥        To Play.
    2♠        To Play.
    2NT        4♠ and Invitational.
    3♣        Distributional, Invitational.
    3♦        Distributional, Invitational.
    3♥        Distributional, Invitational.
   2♣         6+♣ or \\5♣ with singleton ♠ sometimes.
    2♦        New minor forcing.
    2♥        weak
    2♠        weak.
   2♦         Reverse, 17+, occasionally a good 3card suit or 1444
    2♥        Natural. Forcing one round.
    2♠        Weak.
     2NT       minimum, Non forcing.
      3♣      weak.
      3♦      Game Forcing.
      3♥      Game Forcing.
     3♣       minimum, Non forcing.
      3♦      Game Forcing.
      3♥      Game Forcing.
      3♠      weak.
     3♦       Game Forcing.
     3♥       Game Forcing.
     3♠       Game Forcing.\\Doubleton and no side stop.
     4♠       3♠ minimum,
    2NT        6-12 HCP, 4♠, Forcing one round.
     3♣       Non forcing.
      3NT      8-12.
     3♦       Non forcing.
      3NT      8-12.
     3♥       Game Forcing. 4th suit forcing.
     3♠       Game Forcing.
    3♣        Game Forcing. usually 4♠
    3♦        Game Forcing. usually 4♠, Artificical 4th forcing to game.
    3♥        4+♥, constructive.
    3♠        constructive.
    3NT        13-14, HCP.
   2♥         Reverse, 17+HCP, occasionally, 1444
    2♠        Weak.
     2NT       minimum, Non forcing.
      3♣      weak.
      3♦      Game Forcing.
      3♥      Game Forcing.
     3♣       minimum, Non forcing.
      3♦      Game Forcing.
      3♥      Game Forcing.
      3♠      weak.
     3♦       Game Forcing.
     3♠       Game Forcing.\\Doubleton and no side stop.
     4♠       3♠ minimum,
    2NT        6-12 HCP, 4♠, Forcing one round.
    3♣        Game Forcing. usually 4♠
    3♦        Game Forcing. usually 4♠, Artificical 4th forcing to game.
    3♥        4+♥, constructive.
    3♠        constructive.
    3NT        13-14. HCP.
   2♠         4♠ Fit, or 3♠ Fit with singleton/void or bad doubleton.
    2NT        Descriptive invite, NF, just 4♠
    3♣        Descriptive invite, NF, just 4♠
    3♦        seminatural game/slamtry
     3♥       3♠ Fit, max, \\No ♥ stopper/length.
     3♠       Any minimum.
     3NT       3♠ Fit, max, ♥ stopper/length
     4♣       4♠ Fit, good for slam, Artificical.
     4♦       4♦, 3♠, max, 3145
     4♠       4♠ Fit, max, bad for slam.
    3♥        seminatural game/slamtry
     3♠       minimum.
     3NT       3♠ Fit, max, at least some ♦ length.
     4♣       4♠ Fit, good for slam, Artificical.
     4♥       3♠4♥1♦5♣, max
     4♠       4♠ Fit, max, bad for slam.
    3♠        5+♠, Invitational.
    3NT        choice of game, just 4♠,
     Pass       opener passes with 3♠fit or some 4333's.
     4♠       To Play.
   2NT         18-19 HCP, Balanced.
    3♣        Artificical signoff signal.\\or choice of game at 5 minor.
     3♦       Denies 3 ♠.
      Pass      To Play.
      3♥      5♠ + 4+♥.
      3♠      To Play.
      3NT      To Play.
     3♥       3♣.
      Pass      To Play.
      3♠      5♥+4♠, Game Forcing. choice of game.
      3NT      Choice of game. with 5card ♥, may have mild slamtry.
       Pass     To Play.
       4♣     Artificical, slammish max
       4♥     To Play.
      4♥      To Play.
     3♠       3♠.
      Pass      To Play.
      3NT      Choice of game. with 5card ♠, may have mild slamtry.
       Pass     To Play.
       4♣     Artificical, slammish max
        4♠    To Play.
       4♠     To Play.
      4♠      To Play.
    3♦        New minor forcing.\\checkback, checking other 4♥ or 3♠.
     3♥       4♥
      3NT      Non forcing.
      4♣      Natural. Slammish.
      4♦      Natural. Slammish.
     3♠       3♠.
      3NT      Non forcing.
      4♣      Natural. Slammish.
      4♦      Natural. Slammish.
     3NT       Default.
      4♣      Natural. Slam try.
      4NT      Quantitative.
    3♥        5+♠+4♥, Game Forcing.
     3♠       3♥ exactly.
     3NT       2-2♠♥, To Play.
     4♣       Artificical, flag for ♥, slammish.
      4♥      To Play.
      4♠      To Play.
     4♦       Artificical, flag for ♠, slammish.
     4♥       minimum.
     4♠       minimum.
    3♠        6+, Game Forcing.
     3NT       To Play.
     4♣       Artificical, flag for ♠. slammish.
      4♠      Bad for slam.
     4♠       To Play.
   3♣         6+♣, 16-18 HCP.
   3♦         Bad 18-HCP balanced raise
    3♠        To Play.
   3♥         Any 15+ HCP, Splinter raise.
    3♠        Double negative. \\Pass or 4♠ are the only options.
     Pass       To Play.
     4♠       To Play.
    3NT        Asks for further clarification.
     4♣       1♥, 18+ HCP.
     4♦       1♥, 17 HCP.
   3♠         4225, Good 14-15 HCP.
   3NT         Solid ♣ suit, at least partial stops,
    4♣        Sets ♣ as trumps. Unbalanced.
   4♣         Great ♣, 4♠, Slam try.
   4♦         18-19 HCP. 4225
   4♥         18-19 HCP. 4333/4432 raise
   4♠         min 7♣-4♠ gamble, honors only in these 2 suits.
  1NT          8-10 HCP. No 4 card Majors. \\May have 4♦.
   2♣         6(5)+♣
   2♦         Reverse, 17+, may be (41)44
   2♥         Reverse, 17+, occ. a good 3card suit.
   2♠         Reverse, 17+, occ. a good 3card suit.
   2NT         15-16 usually 5♣ or 4441's
   3♣         6+♣, 16-18 HCP.
   3NT         Solid ♣, at least major stops.
    4♣        Sets ♣ as trumps.
  2♣          simple raise.
   2♦         Game Forcing. Natural. Unbalanced. Artificical Balanced.
    2NT        5♣, 11 HCP. nonforcing.
    3NT        15-17 HCP.
   2♥         Natural. Unbalanced. Game Forcing.
    3NT        15-17 HCP.
   2♠         Natural. Unbalanced. Game Forcing.
    3NT        15-17 HCP.
   2NT         Non forcing, bad Balanced hand, say nothing about stoppers.
    3♣        To Play.
   3♣         Non forcing, bad unbalanced hand.
   3♦         Splinter, solid opening hand.
   3♥         Splinter, 4+♣, sound opening bid.
   3♠         Splinter, 4+♣, sound opening bid.
   3NT         18-19 HCP.
  2♦          Limit raise.
   2♥         Game forcing. Natural. Unbalanced.
    2♠        stopper
    2NT        10-12, Balanced or semi Balanced.
   2♠         Game forcing. Natural. Unbalanced.
    2NT        minimum.
    3♥        stopper.
    3NT        10-11, Balanced.
   2NT         NF, bad balanced hand, says nothing about stoppers
    3♦        To Play.
   3♣         Game Forcing. Natural-Unbalanced. Artificical-Balanced. \\(if opps does not bid, 3NT next bid, it shows ♣ natural).\\
   3♦         Non forcing, bad Unbalanced hand.
   3♥         Splinter, solid opening hand.
   3♠         Splinter, solid opening hand.
   3NT         18-19 HCP. Balanced.
  2♥          ♣ fit and ♥ showing.
  2♠          ♣ fit and ♠ showing.
  2NT          10-11 HCP.
   3♣         Natural.
   3♦         Natural.\\4cards conc. usually, short in Majors.
   3♥         4cards conc. usually, short in ♠.
   3♠         4cards conc. usually, short in ♥.
  3♣          5+♣, ~4-6 HCP, NF
   3♥         Game Forcing.
   3♠         Game Forcing.
  3♦          Splinter, 5+♣, denies 4 Majors, some game/Slam try.
   3NT         ♦ stopper, No slam interest.
   4♣         may be minimum no ♦ stopper, or cue
  3♥          Splinter, 5+♣, denies 4 Majors, some game/Slam try.
   3NT         ♥ stopper, No slam interest.
   4♣         may be minimum no ♥ stopper, or cue
  3♠          Splinter, 5+♣, denies 4 Majors, some game/Slam try.
   3NT         ♠ stopper, No slam interest.
   4♣         may be minimum no ♠ stopper, or cue
  3NT          10-11 HCP. Balanced, GF,\\No 4 Majors.
   4♦         Sets ♦. unbalanced.
  4♣          6+♣, Preemptive.
  4♦          RKC for ♣.
   4♥         0 or 3 key cards.
    4♠        Asks for Q of trump?
     4NT       K♠+Q♣.
     5♣       No trump Q.
     5♦       K♦+Q♣.
     5♥       K♥+Q♣.
    5♦        Confirms all keycards and Q♣. \\Asks for specific King?
     5♥       K♥.
     5♠       K♠.
     5NT       K♦.
     6♣       No king.
   4♠         1 or 4 key cards.
    4NT        Asks for trump Q♣?
     5♣       No trump Q.
     5♦       K♦+Q♣.
     5♥       K♥+Q♣.
     5♠       K♠+Q♣.
    5♦        Confirms all keycards and Q♣. \\Asks for specific King?
     5♥       K♥.
     5♠       K♠.
     5NT       K♦.
     6♣       No king.
   4NT         2 key cards. without Q of trumps
   5♣         2 key cards. + Q of trumps
  4♥          Long suit. Weak.
  4♠          Long suit. Weak.

  1♦            12+ HCP, 4(3)+♦, 4D-4C can choose to open either minor
  1♥          4+ cards.
   1♠         4 Cards.
    1NT        To Play.
    2♣        4th suit forcing to game.
    2♦        To Play.
    2NT        Invitational
    3♦        Invitational
   1NT         12-14 HCP. Denies 4♠.
    2♣        Transfer to 2♦. Sign off or invite.
     2♦       Forced to bid 2♦.
      2♥      Unbalanced. 5+♥
      2NT      Balanced 5♥.
      3♥      Mild distributional.
    2♦        Artificical, Game Forcing. checkback.
     2♥       3♥.
      2♠      4♠.
      2NT      waiting, 5♥.
      3♣      Natural. may have 4 card ♥.
      3♦      Natural. may have 4 card ♥.
      3♥      Sets ♥ as trumps.
      3♠      Splinter.
     2♠       4♠.
     2NT       Natural.
     3♣       Natural.
     3♦       Natural.
    2♥        To Play.
    2NT        4♥ and Invitational.
    3♣        Distributional, Invitational.
    3♦        Distributional, Invitational.
    3♥        Distributional, Invitational.
   2♣         5+♦-4+♣
    2♠        4th suit forcing to game.
   2♦         6+♦.
   2♥         4♥, or 3♥ with singleton or void.\\or bad doubleton without 4♠.
    2♠        seminatural game/slamtry
     2NT       3♥ Fit, minimum, ♣ stopper or length
     3♣       3♥ Fit min, no ♣ stopper or length
     3♦       3♥ Fit, min, 5+♦, Non forcing
     3♥       4♥, minimum.
     3♠       3♥ Fit, max, no ♣ stopper or length
     3NT       3♥ Fit, max, ♣ stopper
     4♣       4♥ Fit, good for slam
     4♥       4♥ Fit, bad for slam
    2NT        Descriptive invite, NF, just 4♥
     3♦       Descriptive invite, NF, just 4♥
    3♣        seminatural game/slamtry
     3♦       3♥ Fit, min, 5+D NF
     3♥       other minimums.
     3♠       3♥ Fit, max, \\No ♠ stopper/length
     3NT       3♥ Fit, max, ♠ stopper/length
     4♣       4♥ Fit, good for slam, Artificical.
     4♦       6♦, 3♥, max, No ♠ stopper.
     4♥       4♥ Fit, max, bad for slam.
    3♦        Descriptive invite, NF, just 4♥
    3♥        5+♥, Invitational.
    3NT        Choice of game, just 4♥.
     Pass       passes with 3fit or some 4333's.
   2♠         4♠. Unbalanced.
   2NT         18-19, Balanced, may have 4♠.
    3♣        Artificical signoff signal.\\or choice of game at 5 minor.
     3♦       Denies 3 ♥.
      Pass      To Play.
      3♥      To Play.
      3♠      5+♥+4♠, Game Forcing.
      3NT      To Play.
     3♥       3♥.
      Pass      To Play.
      3♠      5♥+4♠, Game Forcing. choice of game.
      3NT      Choice of game. with 5card ♥, may have mild slamtry.
       Pass     To Play.
       4♣     Artificical, slammish max
       4♥     To Play.
      4♥      To Play.
     3♠       4♠.
      Pass      To Play.
      3NT      Choice of game. with 5card ♥, may have mild slamtry.
       Pass     To Play.
       4♣     Artificical, slammish max
       4♥     To Play.
      4♥      To Play.
      4♠      To Play.
    3♦        New minor forcing.\\checkback, checking other 4♠.
     3♥       3♥
      3NT      Non forcing, interest in minor.
      4♣      Natural. Slammish.
      4♦      Natural. Slammish.
     3♠       Denies 3♥.\\4♠.
      3NT      Non forcing.
      4♣      Sets ♣ suit.
      4♦      Natural. Slammish.
     3NT       Default.
      4♣      Natural. Slam try.
      4NT      Quantitative.
    3♥        6+, Game Forcing.
     4♣       Artificical, flag for ♥, slammish.
     4♥       Bad for slam.
    3♠        4-4 Majors Game Forcing.
     3NT       To Play.
     4♣       Artificical, flag for ♠.
     4♠       To Play.
   3♣         4(3)+♣.
    3♦        Waiting, looking for 3♥ fit \\or 4th suit ♠ stopper usually.
    3♥        6+♥ or can play opp a doubleton
    3♠        5+♥-4♠.
    3NT        To Play.
    4♣        5+♣
    4♦        4+♦.
    4NT        Quantitative.
   3♦         6+♦, 16-18 HCP.
   3♥         15-17HCP. 4♥, splinter raise or \\good 14-15 hcp, 2452
    3♠        Balanced or Splinter ?
     3NT       Balanced.
     4♣       Splinter, ♥ raise.
     4♦       Splinter, ♥ raise.
     4♥       Splinter in ♠, ♥ raise.
   3♠         18+HCP. Splinter raise
    3NT        Ask for Splinter?
     4♣       Splinter, ♥ raise.
     4♦       Splinter, ♥ raise.
     4♥       Splinter in ♠, ♥ raise.
   3NT         Solid ♦ suit, at least partial side stops.
    4♦        Sets ♦ suit as trump.
   4♣         18-19HCP, 4card raise 4432/4333
   4♦         6+♦, 4♥, Slam try. GF
   4♥         minimum 7♦-4♥ gamble, honors only in the 2 suits (♥♦).
  1♠          4+ cards.
   1NT         12-14 HCP. Balanced.
    2♣        Transfer to 2♦. Sign off or invite.
   &n