WJ2005

• 1♣: 11-14 bal./ 15+ w. ♣ / 18+ any
  • 1♦: 0 - 6 / 7 - 11 no 4M unb. / 12-15 bal.
    • 1♥: Better major, can be 3 cards
      • 1♠: 4 - 6, 4+♠
      • 1NT: 5 - 8 no 4M
        • 2♣: 15+ 5+♣ 4♥
      • 2♣: 5 - 11, 5+♣
      • 2♦: 5 - 11, 5+♦
      • 2♥: 4 - 6. 4+♥
      • 2♠: 9 - 11, 5-4+ minors
      • 2NT: GF balanced
      • 3♣: 9 - 11, 6+♣ bad suit
      • 3♦: 9 - 11, 6+♦ bad suit
      • 3♥: ♥ stopper, to play 3NT
      • 3♠: ♠ stopper, to play 3NT
        • 3NT: Prepared ♣ type
    • 1♠: Better major, can be 3 cards
      • 1NT: 5 - 8, no 4♠
        • 2♣: 15+, 5+♣ 4♠
      • 2♣: 5 - 11, 5+♣
      • 2♦: 5 - 11, 5+♦
      • 2♥: 4 - 6, 5+♥
      • 2♠: 4 - 6, 4+♠
      • 2NT: GF balanced
      • 3♣: 9 - 11, 6+♣
      • 3♦: 9 - 11, 6+♦
      • 3♥: ♥ stopper, to play 3NT
        • 3NT: Prepared ♣ type
      • 3♠: ♠ stopper, to play 3NT
    • 1NT: 18 - 20 bal.
      • 2♣: Stayman
      • 2♦: Transfer to ♥
      • 2♥: Transfer to ♠
      • 2♠: Transfer to ♣
      • 2NT: Natural inv.
      • 3♣: Transfer to ♦
      • 3♦: Natural invitation
      • 3NT: To play
    • 2♣: Natural 15+ (4M poss. if 18+)
      • 3♥: 12 - 15 bal. ♥ stopper better
      • 3♠: 12 - 15 bal. ♠ stopper better
    • 2♦: GF, not 5-5 distr.
      • 2♥: 2nd negative
      • 2♠: 5+♠, 3 - 6
      • 2NT: 4 - 8 bal.
      • 3♣: 5+♣
      • 3♦: 5+♦
      • 3♥: 5+♥
    • 2♥: SGF natural
    • 2♠: SGF natural
    • 2NT: 21 - 23 balanced
      • 3♣: Stayman
        • 3♦: No 4-card major
          • 3♥: 5♥ 4♠
          • 3♠: 5♠ 4♥
      • 3♦: Transfer to ♥
      • 3♥: Transfer to ♠
      • 3♠: 5+4+ Minors
      • 3NT: To play
      • 4♣: 6+♣ GF
      • 4♦: 6+♦ GF
    • 3♣: SGF Natural
    • 3♦: SGF Natural
    • 3♥: GF 5+♥ 5+ other
      • 3♠: Prefer ♠ over ♥
      • 3NT: Asks 2nd suit
        • 4♣: 5+♥ 5+♣
        • 4♦: 5+♥ 5+♦
        • 4♥: 5+♥ 5+♠
      • 4♣: Cuebid agreeing ♥
      • 4♦: Cuebid agreeing ♥
    • 3♠: GF 2-suiter ♠+m
      • 3NT: Asks for minor
      • 4♣: Cuebid agreeing ♠
      • 4♦: Cuebid agreeing ♠
      • 4♥: Cuebid agreeing ♠
    • 3NT: To play with long minor
    • 4♣: GF 5+♣ 5+♦
      • 4♦: Sets ♦ Trump
      • 4♥: Cuebid agreeing ♣
      • 4♠: Cuebid agreeing ♣
    • (1♥): Opps Bid
      • 1NT: 18 - 20 balanced
      • 2♣: 15 - 21, 5+♣
      • 2♦: 18 - 21, 5+♦
      • 2♥: 5+♠ 5+minor, 18+
  • 1♥: 7+ 4+♥, longer m poss.
    • 1♠: 4+♠, unlimited
      • 1NT: 7 - 10, to play opp. 12 - 14
      • 2♣: Magister: Weak ♣ or strong
        • 2♦: Minimum no 3♥
        • 2♥: Minimum 3♥
        • 2♠: Maximum 3♥
        • 2NT: Maximum no 3♥
        • 3♣: 15+, 5+♣ 4♠
        • 3♦: 5+♦ 4♠, 18+
        • 3♥: 5♠ 3♥, 18+
        • 3♠: 5♠, no 3♥, 18+
        • 3NT: 4♠, no 3♥, 18+
      • 2♦: To play
      • 2♥: 7 - 10, 5+♥
      • 2♠: 7 - 10, 4♠
      • 2NT: Invitational bal.
    • 1NT: Weak balanced
      • 2♣: Magister: Weak ♣ or strong
        • 2♦: Minimum no 3♥
        • 2♥: Minimum 3♥
        • 2♠: Maximum 3♥
        • 2NT: Maximum no 3♥
      • 2♦: To play
      • 2♥: To play
      • 2♠: 5+♥ 4♠ GF
      • 2NT: Natural invitation
    • 2♣: 15 - 17, 5+♣
    • 2♦: Bubrotka, GF 3+♥
      • 2♥: 4 cards, 7 - 10
      • 2♠: 4 cards, 11+
      • 2NT: 5+cards, 11+
      • 3♣: 4-card and 5♣, 9 - 11
      • 3♦: 4-card and 5♦, 9 - 11
      • 3♥: 5-card, 7 - 10, unbal.
      • 3♠: 5-card, 7- 10, balanced (5332)
      • 3NT: 6+cards, 7 - 10
      • 4♣: Splinter, 6+card
      • 4♦: Splinter, 6+card
    • 2♥: 11 - 14, 4♥
    • 2♠: GF, 6+♠
    • 2NT: GF Balanced
    • 3♣: GF 5+♣
    • 3♦: GF 5+♦
    • 3♥: Invitational, 5+♣ 4♥
    • (2♦): Opps Bid
  • 1♠: 7+ 4+♠, longer m poss.
    • 1NT: Weak balanced
      • 2♣: Magister: Weak ♣ or strong
        • 2♦: Minimum, no 3♠
        • 2♥: Maximum, 3♠
        • 2♠: Minimum, 3♠
        • 2NT: Maximum, no 3♠
      • 2♦: To play
      • 2♥: NF, longer ♠ than ♥
      • 2♠: To play
      • 2NT: Invitational
    • 2♣: 15 - 17, 5+♣
    • 2♦: Bubrotka
      • 2♥: 4 cards, 7 - 10
      • 2♠: 4 cards, 11+
      • 2NT: 5+cards, 11+
      • 3♣: 4-card and 5♣, 9 - 11
      • 3♦: 4-card and 5♦, 9 - 11
      • 3♥: 5-card, 7 - 10, unbal.
        • 3♠: Asks for shortness
        • 3NT: Asks for side 4-card
      • 3♠: 5-card, 7- 10, balanced (5332)
      • 3NT: 6+cards, 7 - 10
      • 4♣: Splinter, 6+card
      • 4♦: Splinter, 6+card
    • 2♥: GF, 5+♥
    • 2♠: 11 - 14, 4♠
    • 2NT: GF Balanced
    • 3♣: GF, 5+♣
    • 3♦: GF, 5+♦
    • 3♠: Invitational, 5+♣ 4♠
  • 1NT: 9 - 11
    • 2♣: 15+, 5+♣, GF
    • 2♦: 18+, 4+♦
    • 2♥: 18+. 5+♥
      • 3♥: Fit & doubleton somewhere
    • 2♠: 18+, 5+♠
      • 3♠: Fit & doubleton somewhere
    • 2NT: Natural invitation
    • 3♣: Good 6+♣, 18+
    • 3♦: Good 6+♦, 18+
    • 3♥: 18+, 5+♥ 5+other
      • 3♠: Prefer ♠ over ♥
      • 3NT: Asks 2nd suit
        • 4♣: 5+♥ 5+♣
        • 4♦: 5+♥ 5+♦
        • 4♥: 5+♥ 5+♠
      • 4♣: Cuebid agreeing ♥
      • 4♦: Cuebid agreeing ♥
    • 3♠: 18+, 5+♠ 5+minor
      • 3NT: Asks for minor
      • 4♣: Cuebid agreeing ♠
      • 4♦: Cuebid agreeing ♠
      • 4♥: Cuebid agreeing ♠
    • 3NT: To play
    • 4♣: 18+, 5+♣ 5+♦
      • 4♦: Sets ♦ Trump
      • 4♥: Cuebid agreeing ♣
      • 4♠: Cuebid agreeing ♣
  • 2♣: 5+♣ GF
  • 2♦: 5+♦ GF
  • 2♥: Strong Jump Shift
    • 3NT: To play
  • 2♠: Strong Jump Shift
    • 3NT: To play
  • 2NT: GF bal. no 4M
    • 3NT: Weak balanced
  • 3♣: 9 - 11, 6+♣
  • 3♦: 9 - 11, 6+♦
  • 3♥: 7-card 2 top honors
  • 3♠: 7-card 2 top honors
  • (1♦): Opps Bid
  • (1♥): Opps Bid
    • 2♦: 7 - 11, 5+♦
  • (1♠): Opps Bid
    • 2♦: 7 - 11, 5+♦
    • 2♥: 7 - 11, 5+♥
• 1♦: 11 - 17, 4+♦ (4♦5♣ poss.)
  • 1♥: 7+, 4+♥
    • 1♠: 4♠, can be balanced
      • 1NT: 7 - 10
      • 2♣: 4th suit, invite or better
      • 2♦: Preference
      • 2♥: 6+♥, 7 - 10
      • 2♠: Fit, 7 - 10
      • 2NT: Invitational
      • 3♦: Invitatitonal
    • 1NT: 12 - 15 (semi)bal., no 4-card M
      • 2♣: Magister: Weak ♣ or strong
        • 2♦: Minimum no 3♥
        • 2♥: Minimum 3♥
        • 2♠: Maximum 3♥
        • 2NT: Maximum no 3♥
    • 2♣: 11-17, 5+♦ 4+♣ or 11-14 4♦5♣
      • 2♦: Preference
      • 2♥: 6+♥, 6 - 9
      • 2♠: 4th suit forcing
      • 2NT: Invitational, no fit
      • 3♣: ♣ fit, constructive
      • 3♦: Invitational
      • 3♥: Invitational
    • 2♦: 11 - 14 , 6+♦
    • 2♥: 11 - 14, 4♥
      • 2NT: 2Forcing relay
        • 3♣: 5♦ 3♣
        • 3♦: 2♠4♥5♦2♣
        • 3♥: Balanced min., 4♦
        • 3♠: 5♦ 3♠
        • 3NT: Balanced max., 4♦
        • 4♣: Splinter, 4441
    • 2♠: 15 - 17, 4♠ 5+♦
      • 2NT: 2Forcing relay
      • 3♣: Asks for stopper
      • 3♦: Nonforcing
      • 3♥: Nonforcing
      • 3♠: Support, forcing
    • 2NT: 15 - 17, 6♦ no 3♥
      • 3♦: Nonforcing
      • 3♥: Forcing, 6+♥
    • 3♦: 15 - 17, 6♦ + 3♥
    • 3♥: Invitational, 4♥
      • 3♠: Asks for shortness
        • 3NT: ♠ shortness
        • 4♣: ♣ Shortness
        • 4♦: ♦ Shortness
        • 4♥: No Shortness
    • 3NT: Solid ♦ + Stopper
  • 1♠: 7+, 4+♠
    • 1NT: 12 - 15 (semi)bal., no 4-card M
      • 2♣: Magister: Weak ♣ or strong
        • 2♦: Minimum, no 3♠
        • 2♥: Maximum, 3♠
        • 2♠: Minimum, 3♠
        • 2NT: Maximum, no 3♠
      • 2♦: To play
      • 2♥: Pick a major
      • 2♠: To play, 5+♠
      • 2NT: Invitational balanced
    • 2♣: 11-17, 5+♦ 4+♣ or 11-14 4♦5♣
      • 2♦: Preference
      • 2♥: Gawrys, Transfer to 2♠
        • 2♠: Forced
          • 2NT: Forcing, can have 4♥
          • 3♣: Forcing, natural
          • 3♦: Forcing
          • 3♥: Forcing, 5 - 5
          • 3♠: Forcing natural
      • 2♠: Natural constructive (10+)
      • 2NT: Invitational
      • 3♦: Invitational
      • 3♥: Invitational 5 - 5
      • 3♠: Invitational, good suit
    • 2♦: 11 - 14, 6+♦ or 5♦4♥ unbal.
      • 2NT: Invitational
    • 2♥: 15 - 17, 5+♦ 4♥
      • 2♠: Nonforcing, 6-card
      • 2NT: 2Forcing relay
        • 3♣: 3+♣
        • 3♦: 6-card
        • 3♠: 3-card support
        • 3NT: To play
      • 3♣: Asks for stopper
      • 3♦: To play
    • 2♠: 11 - 14, 4♠
      • 2NT: 2Forcing relay
        • 3♣: 5♦ 3♣
        • 3♦: 4♠2♥5♦2♣
        • 3♥: 5♦ 3♥
        • 3♠: Balanced min., 4♦
        • 3NT: Balanced max., 4♦
        • 4♣: Splinter, 4441
        • 4♥: Splinter, 4441
    • 2NT: 15-17, 6♦ no 3♠
      • 3♦: Nonforcing
      • 3♠: Forcing, 6+♠
    • 3♣: 15 - 17, 5+♦ 5+♣
    • 3♦: 15 - 17, 6♦ 3♠
    • 3♥: Maximum, 4♠ and short ♥
    • 3♠: Invitational, 4♠
      • 3NT: 2Asks for shortness
        • 4♣: ♣ Shortness
        • 4♦: ♦ Shortness
        • 4♥: ♥ Shortness
        • 4♠: No Shortness
    • 3NT: Solid ♦ + Side stopper
  • 1NT: 7 - 10 no 4M
    • 2♣: Can be 5 - 4 both ways
      • 2♦: Preference
    • 2♦: 11 - 15, 5+♦
    • 2♥: 15 - 17, 5+♦ 4♥
    • 2♠: 15 - 17, 5+♦ 4♠
    • 2NT: 16 - 17, (semi)balanced
    • 3♣: F1R 2-suited
      • 3♦: Not forcing
    • 3♦: 6+♦ Invitational
  • 2♣: 5+♣ GF or 6+♣ Invite+
    • 2♦: 5+♦ any strength
      • 3♦: Forcing raise
    • 2♥: 4♦ 4♥, 12 - 14
    • 2♠: 4♦ 4♠, 12 - 14
    • 2NT: 12 - 14, 4♦ no 4M
    • 3♣: Shows extra's, 3+♣
    • 3♦: Good 6-card suit, GF
    • 3♥: Splinter with 4+♣
    • 3♠: Splinter with 4+♣
    • 3NT: 1♣444, 15 - 17
  • 2♦: 10+. 4+♦, no 4M
    • 2♥: Natural
    • 2♠: Natural
    • 2NT: Minimum balanced
      • 3♦: To play
  • 2♥: Strong Jump Shift
  • 2♠: Strong Jump Shift
  • 2NT: 11 - 12 bal. no 4M, stoppers
  • 3♣: Strong Jump Shift
  • 3♦: Preemptive raise
  • 3♥: Splinter
  • 3♠: Splinter
  • 3NT: 13 - 15 bal., no 4M, stoppers
  • 4♣: Splinter
  • 4♦: Preemptive raise
  • (1♥): Opps Bid
    • D: 4♠ or 11+
    • 1♠: 7+, 5+♠
    • 1NT: 7 - 10 + stopper
    • 2♦: 7 - 10 FP, 4+♦
  • (1♠): Opps Bid
    • 2♥: 7 - 11, 5+♥
• 1♥: 11 - 17, 5+♥
  • 1♠: Natural, 3♥ only if invite+
    • 1NT: 12 - 15 (semi)bal., no 4♠
      • 2♣: Magister: Weak ♣ or strong
        • 2♦: Minimum, no 3♠
        • 2♥: Maximum, 3♠
        • 2♠: Minimum, 3♠
        • 2NT: Maximum, no 3♠
    • 2♣: Natural
      • 2♦: 4th suit, invite or better
      • 2♥: 7 - 9, preference
      • 3♥: Invitational, 3♥
    • 2♦: Natural
      • 2♥: 7 - 9, preference
      • 3♥: Invitational, 3♥
    • 2♥: 11 - 14, 6+♥
      • 2NT: Forcing inquiry
        • 3♣: Singleton
        • 3♦: Singleton
        • 3♥: Min., no 3♠, no minor single
        • 3♠: 3♠6♥2♦2♣
        • 3NT: No 3♠, no minor single, max.
    • 2♠: 11 - 14, 4♠
    • 2NT: 15-17, 6♥ no 3♠
      • 3♠: Forcing, 6+♠
    • 3♣: 15 - 17, at least 5 - 5
      • 3♥: Forcing, does not promise 3♥
    • 3♦: 15 - 17, at least 5 - 5
    • 3♥: 15 - 17, 6♥ + 3♠
    • 3♠: Invitational, 4♠
      • 3NT: 2Asks for shortness
        • 4♣: ♣ Shortness
        • 4♦: ♦ Shortness
        • 4♠: No Shortness
    • 3NT: Solid ♦ + Side stopper
  • 1NT: 7 - 11 no 3♥ or 5 - 7 3♥
    • 2♣: 4+♣ (maybe 4513)
    • 2♦: 4+♦ (maybe 4531)
    • 2♥: 11 - 14, 6+♥
      • 2NT: Forcing inquiry
        • 3♣: Singleton
        • 3♦: Singleton
        • 3♥: Minimum no singleton
        • 3♠: Singleton
        • 3NT: Maximum no singleton
    • 2♠: 15 - 17, 4♠
    • 2NT: Maximum balanced
    • 3♣: 15 - 17, 5 - 5
    • 3♦: 15 - 17, 5 - 5
    • 3♥: 15 - 17, 6+♥
  • 2♣: Natural / bal. / fit
    • 2♥: Minimum hand
    • 3♣: Extras, 4+♣
    • 3♦: 15 - 17, 5 - 5
    • 3♠: Splinter
  • 2♦: 5+♦, Forcing to 3♦
    • 3♦: Extras, at least ♦Hxx
  • 2♥: 8 - 10, 3♥
    • 2♠: Help suit trial
    • 2NT: Waiting bid
    • 3♣: Help suit trial
    • 3♦: Help suit trial
    • 3♥: Preemptive
  • 2♠: Strong Jump Shift
  • 2NT: Inv. 3+♥
    • 3♣: Asking what kind of invite
      • 3♦: Minimum balanced
      • 3♥: Preemptive invite
      • 3♠: Maximum, 4-card support
      • 3NT: Maximum balanced
      • 4♥: To play, good unbal.
    • 3♥: Not interested
    • 4♥: To play
  • 3♣: Strong Jump Shift
  • 3♦: Strong Jump Shift
  • 3♥: Preemptive
  • 3♠: Weak splinter, any shortness
  • 3NT: Strong splinter in ♠
  • 4♣: Strong splinter in ♣
  • 4♦: Strong splinter in ♦
  • (D): Opps Bid
    • 1NT: 7 - 10, 3♥
    • 2♥: 0 - 6, 3+♥
  • (1♠): Opps Bid
    • 2♦: 7 - 11, 5+♦
  • (2♣): Opps Bid
    • 2♠: 7 - 11, 5+♠
  • (2♦): Opps Bid
• 1♠: 11 - 17, 5+♠
  • 1NT: 7 - 11 no 3♠ or 5 - 7 3♠
    • 2♣: 4+♣
    • 2♦: 4+♦
    • 2♥: 4+♥
    • 2♠: 11 - 14, 6+♠
      • 2NT: Forcing inquiry
        • 3♣: Singleton
        • 3♦: Singleton
        • 3♥: Singleton
        • 3♠: Minimum no singleton
        • 3NT: Maximum no singleton
    • 2NT: Maximum balanced
    • 3♣: 15 - 17, 5 - 5
    • 3♦: 15 - 17, 5 - 5
    • 3♥: 15 - 17, 5 - 5
    • 3♠: 15 - 17, 6+♠
  • 2♣: Natural / balanced / fit
    • 2♦: Natural, forcing
      • 3♣: Not forcing
    • 2♥: Natural, forcing
    • 2♠: Minimum
      • 2NT: Forcing asking bid
      • 3♣: NF, 6+♣
      • 3♦: GF 5+♣ 4♦
      • 3♥: GF 5+♣ 4♥
    • 2NT: GF, no other bid
    • 3♣: Extras, 4+♣
    • 3♦: 15 - 17, 5 - 5
    • 3♥: 15 - 17, 5 - 5
  • 2♦: 5+♦, forcing to 3♦
    • 2♥: Natural, forcing
    • 2♠: Minimum
    • 2NT: GF, no other bid
    • 3♣: 15 - 17, 5 - 5
    • 3♦: 3+♦, shows extras
  • 2♥: 11+ 5+♥ or 9+ 6+♥
    • 2NT: Balanced
    • 3♥: 3♥ minimum
    • 4♣: Splinter
    • 4♦: Splinter
    • 4♥: Not minimum, 3/4♥
  • 2♠: 8 - 10, 3♠
    • 2NT: Waiting bid
    • 3♣: Help suit trial
    • 3♦: Help suit trial
    • 3♥: Help suit trial
    • 3♠: Preemptive
  • 2NT: Invitational 3+♠
    • 3♣: Asking what kind of invite
      • 3♦: Minimum balanced
      • 3♥: Maximum, 4-card support
      • 3♠: Preemptive
      • 3NT: Maximum balanced
      • 4♠: To play, good unbal.
    • 3♥: Not interested
    • 4♥: To play
  • 3♣: Strong Jump Shift
  • 3♦: Strong Jump Shift
  • 3♥: Strong Jump Shift
  • 3♠: Preemptive raise
  • 3NT: Weak splinter, any shortness
  • 4♣: Strong splinter in ♣
  • 4♦: Strong splinter in ♦
  • 4♥: Strong splinter in ♥
  • (2♣): Opps Bid
    • 2♥: 7 - 11, 5+♥
  • (2♦): Opps Bid
• 1NT: 15 - 17 (5M possible)
  • 2♣: Stayman
    • 2♦: No 4-card major
      • 2♥: NF, both majors
      • 2♠: Invitational 5♠ 4♥
      • 3♣: Forcing & natural
      • 3♥: GF 5♠ 4♥ (Smolen)
      • 3♠: GF 5♥ 4♠ (Smolen)
    • 2♥: 4♥, 4♠ possible
      • 2♠: Invite, 4♠
      • 3♣: Natural & Forcing
      • 3♦: Agrees ♥, Trybula Transfer
    • 2♠: 4♠ no 4♥
      • 3♣: Natural & Forcing
      • 3♦: Natural & Forcing
      • 3♥: Agrees ♠, Trybula Transfer
  • 2♦: Transfer to ♥
    • 2♥: Accept transfer
      • 2♠: Invitational 5♥ 4♠
      • 2NT: Invitational 5♥
      • 3♣: Natural GF
      • 3♦: Natural GF
      • 3♥: Invitational 6+♥
      • 4♣: Splinter
      • 4♦: Splinter
      • 4♥: Slam invitational
      • 4NT: Quantitative
    • 2NT: Maximum, 4♥, can play NT
    • 3♥: Maximum, 4♥
  • 2♥: Transfer to ♠
    • 2♠: Accept transfer
      • 2NT: Invitational 5♠
      • 3♣: Natural GF
      • 3♦: Natural GF
      • 3♥: 5 - 5 majors, GF
      • 3♠: Invitational 6+♠
      • 4♣: Splinter
      • 4♦: Splinter
      • 4♠: Slam invitational
      • 4NT: Quantitative
    • 2NT: Maximum, 4♠, can play NT
    • 3♠: Maximum 4♠
  • 2♠: Transfer to ♣
    • 2NT: Good ♣ support
      • 3♣: Weak with ♣
      • 3♦: Singleton
      • 3♥: Singleton
      • 3♠: Singleton
      • 3NT: To play
    • 3♣: Accept transfer
      • 3♦: Singleton
      • 3♥: Singleton
      • 3♠: Singleton
      • 3NT: Slam invitation
  • 2NT: Natural inv.
    • 3NT: Maximum
  • 3♣: Transfer to ♦
    • 3♦: Forced
    • 3♥: Singleton
    • 3♠: Singleton
    • 3NT: Slam invitation
  • 3♦: Invitational
  • 3♥: Splinter 3♠1♥(54)
    • 3♠: 4 good ♠, wants 4-3 fit
    • 3NT: Good ♥ stopper
    • 4♣: Sets trumps
    • 4♦: Sets trumps
    • 4♥: 4+4+ minors, nothing in ♥
    • 4NT: 4+4+minors, bad for 3NT
  • 3♠: Splinter 1♠3♥(54)
    • 3NT: Good ♠ stopper
    • 4♣: Sets trumps
    • 4♦: Sets trumps
    • 4♥: Good 4-card, suggest 4-3 fit
    • 4♠: 4+4+minors, nothing in ♠
    • 4NT: 4+4+ minors, 3NT not good
  • 3NT: To play
  • 4♣: Asks aces
  • 4♦: Transfer to ♥
    • 4♥: Forced
      • 4NT: RKC
  • 4♥: Transfer to ♠
    • 4♠: Accept transfer
      • 4NT: RKC
  • 4NT: Quantitative
  • (D): Opps Bid
    • RD: To play 1NTxx
    • 2♦: Transfer to ♥
      • 2♥: Accept transfer
        • 2♠: Invitational 5♥ 4♠
        • 2NT: Invitational 5♥
        • 3♣: Natural GF
        • 3♦: Natural GF
        • 3♥: Invitational 6+♥
        • 4♣: Splinter
        • 4♦: Splinter
        • 4♥: Slam invitational
        • 4NT: Quantitative
      • 2NT: Maximum, 4♥, can play NT
      • 3♥: Maximum, 4♥
    • 2♥: Transfer to ♠
      • 2♠: Accept transfer
        • 2NT: Invitational 5♠
        • 3♣: Natural GF
        • 3♦: Natural GF
        • 3♥: 5 - 5 majors, GF
        • 3♠: Invitational 6+♠
        • 4♣: Splinter
        • 4♦: Splinter
        • 4♠: Slam invitational
        • 4NT: Quantitative
      • 2NT: Maximum, 4♠, can play NT
      • 3♠: Maximum 4♠
    • 2♠: Transfer to ♣
      • 2NT: Good ♣ support
        • 3♣: Weak with ♣
        • 3♦: Singleton
        • 3♥: Singleton
        • 3♠: Singleton
        • 3NT: To play
      • 3♣: Accept transfer
        • 3♦: Singleton
        • 3♥: Singleton
        • 3♠: Singleton
        • 3NT: Slam invitation
    • 2NT: Natural inv.
      • 3NT: Maximum
    • 3♣: Transfer to ♦
      • 3♦: Forced
      • 3♥: Singleton
      • 3♠: Singleton
      • 3NT: Slam invitation
    • 3♦: Invitational
    • 3♥: Splinter 3♠1♥(54)
      • 3♠: 4 good ♠, wants 4-3 fit
      • 3NT: Good ♥ stopper
      • 4♣: Sets trumps
      • 4♦: Sets trumps
      • 4♥: 4+4+ minors, nothing in ♥
      • 4NT: 4+4+minors, bad for 3NT
    • 3♠: Splinter 1♠3♥(54)
      • 3NT: Good ♠ stopper
      • 4♣: Sets trumps
      • 4♦: Sets trumps
      • 4♥: Good 4-card, suggest 4-3 fit
      • 4♠: 4+4+minors, nothing in ♠
      • 4NT: 4+4+ minors, 3NT not good
    • 3NT: To play
    • 4♣: Asks aces
    • 4♦: Transfer to ♥
      • 4♥: Forced
        • 4NT: RKC
    • 4♥: Transfer to ♠
      • 4♠: Accept transfer
        • 4NT: RKC
    • 4NT: Quantitative
• 2♣: 11 - 14, 5♣ 4M or 6+♣
  • 2♦: Relay, Forcing to 3♣
    • 2♥: 4-card suit
      • 2♠: 2nd Relay
        • 3♦: 3-card side suit
        • 3♠: 3-card side suit
      • 3♣: To play
    • 2♠: 4-card suit
      • 2NT: 2nd Relay
        • 3♦: 3-card side suit
        • 3♥: 3-card side suit
      • 3♣: To play
    • 2NT: 6♣, good for NT
    • 3♣: 6♣, cannot play 3NT
    • 3♦: Maximum 6♣ 4♦
    • 3♥: 6♣ 5♥
    • 3♠: 6♣ 5♠
    • 3NT: Solid ♣, maximum
  • 2♥: 7 - 11, NF
  • 2♠: 7 - 11, NF
  • 2NT: Weak ♣ raise / GF 2-suiter
    • 3♣: Forced
      • 3♦: ♦♥ 2-suiter
      • 3♥: ♥♠ 2-suiter
      • 3♠: ♠♦ 2-suiter
  • 3♣: Inv. raise
  • 3♦: Inv. good 6-card
  • 3♥: Inv. good 6-card
  • 3♠: Inv. good 6-card
  • 3NT: To play
• 2♦: Weak Two in ♥ or ♠
  • 2♥: Pass or correct
    • 2♠: Weak Two in ♠
  • 2♠: Pass or correct
    • 2NT: Maximum W2 in ♥
    • 3♣: Maximum W2 in ♥, Feature
    • 3♦: Maximum W2 in ♥, Feature
    • 3♥: Minimum W2 in ♥
  • 2NT: Strong relay
    • 3♣: Maximum
      • 3♦: Relay
        • 3♥: Maximum ♠
        • 3♠: Maximum ♥
      • 3♥: Pass or Correct
      • 3♠: Pass or Correct
    • 3♦: Minimum ♥
    • 3♥: Minimum ♠
  • 3♣: GF, any 1-suiter
    • 3♦: Forced
      • 3♥: 6+♥ GF
      • 3♠: 6+♠ GF
      • 4♣: 6+♣ GF
      • 4♦: 6+♦ GF
  • 3♦: Invite for either major
    • 3♥: Minimum ♥
    • 3♠: Minimum ♠
    • 4♣: Maximum ♥
    • 4♦: Maximum ♠
  • 3♥: Pass or correct
    • 3♠: Weak 2 in ♠
  • 3♠: Pass or correct
    • 4♥: Weak Two in ♠
  • 3NT: To play
  • 4♣: Asks for transfer to major
    • 4♦: Weak Two in ♥
    • 4♥: Weak Two in ♠
  • 4♦: Asks partner to bid major
    • 4♥: Weak Two in ♥
    • 4♠: Weak Two in ♠
  • 4♥: To play
  • 4♠: To play
• 2♥: 6 - 10, 5+♥ 5+other
  • 2♠: Pass or correct
  • 2NT: Strong ask for 2nd suit
    • 3♣: 5+♣
    • 3♦: 5+♦
    • 3♥: 5+♠
  • 3♣: Natural F1R
  • 3♦: Natural F1R
  • 3♥: Preemptive
• 2♠: 6 - 10, 5+♠ 5+minor
  • 2NT: Strong relay
  • 3♣: Pass or correct
  • 3♦: Natural F1R
  • 3♥: Natural F1R
  • 3♠: Preemptive raise
• 2NT: 6 - 10, 5+♣ 5+♦
  • 3♣: To play
  • 3♦: To play
  • 3♥: Asks distribution
    • 3♠: Doubleton ♠
    • 3NT: Doubleton ♥
    • 4♣: longer minor
    • 4♦: longer minor
    • 4♥: 3-card ♥
    • 4♠: 3-card ♠
  • 3♠: Natural forcing
• 3♣: Preemptive
• 3♦: Preemptive
• 3♥: Preemptive
• 3♠: Preemptive
• 3NT: Solid minor, no outside stopper
  • 4♣: Pass or correct
  • 4♦: Asks for singleton
    • 4♥: Singleton ♥
    • 4♠: Singleton ♠
    • 4NT: Shortness in other minor
    • 5♣: 7♣222
    • 5♦: 7♦222
• 4♣: Pass or correct
• 4♦: Asks for singleton