FP-BTC

Default principles
Offensive bidding
Bidding diagrams
1♣              17+ HCP, any hand
 1♦            0-6 HCP
  1♥           17-22, semi-forcing, may have a longer side suit, occas. good 3-crd suit if minimum and 5-4 minors
   1♠          3-6 HCP
    1NT         5♥
    2♣         may be 4♥-5+♣
    2♦         may be 4♥-5+♦
    2♥         
    2♠         
    2NT         21-22, maybe just 4♥
    3♣         5+♥-4+♣, 20-22 or 4 losers
    3♦         5+♥-4+♦, 20-22 or 4 losers
    3♥         20-22
    3♠         
    3NT         
    4♥         
    4♠         
   1NT          3-5 HCP, denies 4♠, usually denies 3♥
    2♣         may be 4♥-5+♣
    2♦         may be 4♥-5+♦
    2♥         
    2♠         5+♠-4+♥, 20-22 or 4 losers
    2NT         19-20
    3♣         5+♥-4+♣, 20-22 or 4 losers
    3♦         5+♥-4+♦, 20-22 or 4 losers
    3♥         20-22
    3♠         6+♠-4♥, 20-22 or 4 losers
    3NT         
    4♠         
   2♣          tends to deny 3♥
    2♦         F1, may be 4♥-5+♦
    2♥         
    2♠         5+♥-4♠, F1
    2NT         F1, general force
    3♣         
    3♦         5+♥-4+♦
    3♥         
    3♠         5+♠-4+♥, 20+
    3NT         
    4♥         
   2♦          tends to deny 3♥
    2♥         
    2♠         5+♥-4♠, F1
    2NT         F1, general force
    3♣         may have just 4♥
    3♦         
    3♥         
    3♠         5+♠-4+♥ 20+
    3NT         
    4♥         
   2♥          simple raise
    2♠         20+, 5+♠, may have just 4♥
    2NT         just 4♥, balanced
    3NT         just 4♥, balanced
   2♠          any invite+ splinter for ♥, 4+♥
    2NT         asks for which splinter (♥
    3♥         
   2NT          6 HCP, bal, no M
    3♠         5+♠-4+♥
   3♣          2 top honors, NF
    3♠         5+♠-4+♥
    3NT         
   3♦          2 top honors, NF
    3♠         5+♠-4+♥
    3NT         
   3♥          
   3♠          3-6 HCP, but not all in the suit
  1♠           17-22, semi-forcing, may have a longer side suit, occasionally good 3-crd suit if minimum and 5-4 minors
   1NT          3-6 HCP
    2♣         may be 4♠-5+♣
    2♦         may be 4♠-5+♦
    2♥         5+♠-4+♥
    2♠         
    2NT         21-22
    3♣         5+♠-4+♣, 20-22 or 4 losers
    3♦         5+♠-4+♦, 20-22 or 4 losers
    3♥         4+♠-5+♥, 20-22 or 4 losers
    3♠         20-22
    3NT         
    4♠         
   2♣          tends to deny 3♠
    2♦         may be 4♠-5+♦
    2♥         5+♠-4+♥
    2♠         
    2NT         F1, general force
    3♣         
    3♦         5+♠-4+♦ GF
    3♥         4+♠-5+♥ GF
    3♠         
    3NT         
   2♦          tends to deny 3♠
    2♥         5+♠-4+♥
    2♠         
    2NT         general force
    3♣         ♣ may be longer than ♠
    3♦         
    3♥         5+♥-4+♠
    3♠         
    3NT         
   2♥          
    2♠         
    2NT         
    3♣         ♣ may be longer than ♠
    3♦         ♦ may be longer than ♠
    3♥         
    3♠         
    3NT         
    4♥         
   2♠          simple raise
    2NT         4♠ bal
    3♥         5+♥-4+♠
    3NT         4♠ bal
   2NT          any invite+ splinter for ♠, 4+♠
    3♣         asks for the splinter (♠
    3♥         5+♥-4♠, 20+
    3♠         
    3NT         
    4♠         
   3♣          2 top honors
    3♥         5+♥-4+♠ 20+
    3NT         
   3♦          2 top honors
    3♥         5+♥-4+♠ 20+
    3NT         
    4♠         
   3♥          3-6 HCP but not all in the suit
   3♠          2-6 HCP but not all in the suit
  1NT           18-20, at most 1 major, could be 5-4 minors with no good 3-crd major
   RD          SOS, denies ♣
   2♣          Scanian Stayman: could be looking for a major, or a) weak 4-4 majors, or b) weak 6+♣ or 6+♦-4M, or c) invite 5♠, or d) various GF+ minor hands
    2♦         no 4M
     2♥        4+ 4+ majors, signoff
      2♠       
     2♠        5♠ invite
      Pass       2-3♠, minimum
      2NT       2♠, can play 3N opposite good invite
      3♣       game try, 3♠, good 4-crd suit
      3♦       game try, 3♠, good 4-crd suit
      3♥       game try, 3♠, values in ♥
      3♠       3♠, counter-invite, no good side minor
      3NT       max, 2♠
      4♠       max, 3♠
     2NT        transfer to ♣, may be a) to play, b) 6+♣ GF+, c) 6+d sing. ♣ GF+, d) 5-5 minors good suits serious slam try, e) 6M-5♣ no slam
      3♣       forced
       Pass      signoff, 6+♣, may or may not have major
       3♦      6+ minor, sing. in other minor, GF+
        3♥     asks for singleton
         3♠    sing. ♦, game or slam
         3NT    sing. ♣, no slam
         4♣    sing/void ♣, slammish
         4♦    void ♦, slammish
       3♥      sing ♥, 6+♣, GF+
       3♠      sing ♠, 6+♣, GF+
       3NT      mild slam try, 6+♣ bal
       4♣      serious slam try, 6+♣ bal
       4♦      good slam try, 5+ 5+ minors, at least 2 top honors between the 2 suits
        4♥     asks # top honors in minors (3, 4, 5...)
       4♥      6♥-5♣, no slam
       4♠      6♠-5♣, no slam
     3♣        transfer to ♦, may be a) weak signoff, b) GF+ 1-suiter, c) mild slam try 5-5 minors good suits, d) 6M-5♦ signoff
      3♦       forced
       Pass      6+♦, signoff, might not have a major
       3♥      6+♦, sing ♥, GF+
       3♠      6+♦, sing ♠, GF+
       3NT      6+♦ bal, mild slam try
       4♣      mild slam try, 5+ 5+ minors, at least 2 top honors between the two suits
        4♦     asks # top honors in minors (3, 4, 5...)
       4♦      6+♦ bal, serious slam try
       4♥      6♥-5♦, no slam
       4♠      6♠-5♦, no slam
     3♦        minors suit stayman, slammish
      3♥       4-5♣, denies 4♦
       3♠      cue for ♣
       3NT      had mild slam try opposite ♦
       4♣      sets suit, no ♠ cue, no ♦A
       4♦      sets ♣, ♦A, no ♠ cue
       4♥      cue for ♣, no ♠ or ♦ cue
       4NT      quantitative, 4-5♦
      3♠       4-5♦, denies 4♣
       3NT      had mild slam try opposite ♣
       4♣      cue for ♦
       4♦      sets ♦, no ♠ cue, no ♥A
       4♥      ♥A, no ♣ cue, sets ♦
       4♠      cue for ♦, no ♣ or ♥ cue
       4NT      quantitative, 4-5♣
      3NT       4-4 minors
       4♣      sets suit
       4♦      sets suit
     3♥        Smolen: 5+♠-4♥ GF+, or 5♠-5♥ game only
      3♠       good hand for slam
      3NT       misfit
       4♣      5♠-4♥-1♦-3♣
       4♦      5♠-4♥-3♦-1♣
       4♥      5♠-5♥, no slam
       4♠      6♠-4♥ mild slam try, NF
       4NT      5♠-4♥-2-2 quant
       5♠      6♠-4♥ serious slam try
      4♣       cue for ♠, good hand for slam
      4♦       cue for ♠, good hand for slam
      4♥       cue for ♠, good hand for slam
      4♠       bad for slam
     3♠        Smolen: 5+♥-4♠ GF+, or 5♠-5♥ slam try bad suits
      3NT       misfit
       4♣      4♠-5♥-1♦-3♣
       4♦      4♠-5♥-3♦-1♣
       4♥      6♥-4♠ mild slam try
       4♠      5♠-5♥, slam try, less than 3 top honors between the 2 majors
       4NT      5♥-4♠-2-2 quant
       5♥      6♥-4♠ serious slam try
      4♣       cue for ♥, good hand for slam
      4♦       cue for ♥, good hand for slam
      4♥       bad hand for slam
      4♠       bad for slam
     3NT        might not have major
     4♣        5♠-5♥, ♣ splinter, slam try, 3+ top honors between the majors
      4♦       asks # top honors in majors (3, 4...)
      4♥       
      4♠       
      4NT       no minor cue, 3 top honors in majors
      5♣       cue, 3 top honors in majors
      5♦       cue, 3 top honors in majors
     4♦        5♠-5♥, ♦ splinter, slam try, 3+ top honors between the majors
      4♥       asks # top honors in majors (3, 4, 5...)
      4♠       
      4NT       3 top honors in majors, slam try
      5♣       cue, 3 top honors in majors
      5♦       cue, 3 top honors in majors, no ♣ cue
      5♥       
     4♥        6♥-4♠, no slam unless opener has magic
     4♠        6♠-4♥, no slam unless opener has magic
     4NT        Blackwood (0, 1, 2..)
    2♥         4♥, maybe 4♠
     2♠        5♠ exactly, invite
      Pass       2-3♠, minimum
      2NT       2♠, can play 3N opposite good invite
      3♣       game try, 3♠, good 4-crd suit
      3♦       game try, 3♠, good 4-crd suit
      3♥       game try, 3♠, good 4-crd suit
      3♠       3-4♠, counter-invite, no good side minor
      3NT       max, 2♠
      4♠       max, 3-4♠
     2NT        transfer to ♣, may be a) to play, b) 6+♣ GF+, c) 6+d sing. ♣ GF+, d) 5-5 minors good suits serious slam try, e) 6M-5♣ no slam
      3♣       forced
       Pass      signoff, 6+♣, may or may not have major
       3♦      6+ minor, sing. in other minor, GF+
        3♥     asks for singleton
         3♠    sing. ♦, game or slam
         3NT    sing. ♣, no slam
         4♣    sing/void ♣, slammish
         4♦    void ♦, slammish
       3♥      sing ♥, 6+♣, GF+
       3♠      sing ♠, 6+♣, GF+
       3NT      mild slam try, 6+♣ bal
       4♣      serious slam try, 6+♣ bal
       4♦      good slam try, 5+ 5+ minors, at least 2 top honors between the 2 suits
        4♥     asks # top honors in minors (3, 4, 5...)
       4♥      6♥-5♣, no slam
       4♠      6♠-5♣, no slam
     3♣        transfer to ♦, may be a) weak signoff, b) GF+ 1-suiter, c) mild slam try 5-5 minors good suits, d) 6M-5♦ signoff
      3♦       forced
       Pass      6+♦, signoff, might not have a major
       3♥      6+♦, sing ♥, GF+
       3♠      6+♦, sing ♠, GF+
       3NT      6+♦ bal, mild slam try
       4♣      mild slam try, 5+ 5+ minors, at least 2 top honors between the two suits
        4♦     asks # top honors in minors (3, 4, 5...)
       4♦      6+♦ bal, serious slam try
       4♥      6♥-5♦, no slam
       4♠      6♠-5♦, no slam
     3♦        asks for side suit - a) slam try for a minor, or b) looking for 4-4 ♠ fit, or c) slammish raise in ♥ without 2 of top 3 honors
      3♥       4♣, or 4♥-333
       3♠      interest in ♣
        3NT     4♥-333
        4♣     4♣, minimum
        4♦     cue with 4♣, max
        4♥     cue with 4♣, max
        4♠     cue with 4♣, max
       3NT      
       4♣      4♥, cue, denies 2 top honors in ♥, slammish
       4♦      4♥, cue, denies 2 top honors in ♥, slammish
       4♥      4♥, no minor cue, denies 2 top honors in ♥, slammish
      3♠       4♠
       3NT      
       4♣      cue for ♠
       4♦      cue for ♠
       4♥      slam try, 4♥ without 2 of top 3 honors
      3NT       4♦
       4♣      cue for ♦
       4♦      sets ♦, no ♣ cue
       4♥      slam try in ♥, denies 2 of top 3 honors
     3♥        
     3♠        5-4+ in majors, slammish
      3NT       asks for singleton
       4♣      splinter
       4♦      splinter
       4♥      5-4-2-2 minimum
       4♠      5-4-2-2 maximum
     3NT        does not promise 4♠
     4♣        cue for ♥, slammish, promises at least 2 of top 3 trumps
     4♦        cue for ♥, slammish, promises at least 2 of top 3 trumps
     4♥        
     4♠        voidwood for ♥
     4NT        RKC for ♥
     5♣        voidwood for ♥
     5♦        voidwood for ♥
    2♠         4♠, denies 4♥
     2NT        transfer to ♣, may be a) to play, b) 6+♣ GF+, c) 6+d sing. ♣ GF+, d) 5-5 minors good suits serious slam try, e) 6M-5♣ no slam
      3♣       forced
       Pass      signoff, 6+♣, may or may not have major
       3♦      6+ minor, sing. in other minor, GF+
        3♥     asks for singleton
         3♠    sing. ♦, game or slam
         3NT    sing. ♣, no slam
         4♣    sing/void ♣, slammish
         4♦    void ♦, slammish
       3♥      sing ♥, 6+♣, GF+
       3♠      sing ♠, 6+♣, GF+
       3NT      mild slam try, 6+♣ bal
       4♣      serious slam try, 6+♣ bal
       4♦      good slam try, 5+ 5+ minors, at least 2 top honors between the 2 suits
        4♥     asks # top honors in minors (3, 4, 5...)
       4♥      6♥-5♣, no slam
       4♠      6♠-5♣, no slam
     3♣        transfer to ♦, may be a) weak signoff, b) GF+ 1-suiter, c) mild slam try 5-5 minors good suits, d) 6M-5♦ signoff
      3♦       forced
       Pass      6+♦, signoff, might not have a major
       3♥      6+♦, sing ♥, GF+
       3♠      6+♦, sing ♠, GF+
       3NT      6+♦ bal, mild slam try
       4♣      mild slam try, 5+ 5+ minors, at least 2 top honors between the two suits
        4♦     asks # top honors in minors (3, 4, 5...)
       4♦      6+♦ bal, serious slam try
       4♥      6♥-5♦, no slam
       4♠      6♠-5♦, no slam
     3♦        slammish, asks about minors, or could be a bal slam try in ♠ without 2 of top 3 trumps
      3♥       4♣
       3♠      bal slam try in ♠, denies 2 of top 3 honors
       3NT      
       4♣      sets ♣
       4♦      cue for ♣
       4♥      cue for ♣, no ♦ cue
      3♠       4♦
       3NT      
       4♣      cue for ♦
       4♦      sets ♦, no ♣ cue
       4♥      cue for ♦, no ♣ cue
       4♠      bal slam try in ♠, denies 2 of top 3 honors
      3NT       4♠-333
       4♣      cue for ♠, bal slam try without 2 of top 3 ♠
       4♦      cue for ♠, bal slam try without 2 of top 3 ♠
       4♥      cue for ♠, bal slam try without 2 of top 3 ♠
     3♥        5+-4+ majors, slam try
      3♠       asks for shortness
       3NT      no shortness (5422)
       4♣      splinter
       4♦      splinter
     3♠        
     3NT        might not have 4♥
     4♣        bal slam try in ♠, cue, at least 2 of top 3 honors in trumps
     4♦        bal slam try in ♠, cue, at least 2 of top 3 honors in trumps
     4♥        bal slam try in ♠, cue, at least 2 of top 3 honors in trumps
     4♠        
     4NT        RKC for ♠
     5♣        voidwood for ♠
     5♦        voidwood for ♠
     5♥        voidwood for ♠
   2♦          transfer, may be 4♥ invite
    2♥         normal accept
     2♠        4-5♥, invite, denies 4♠
      2NT       2-3♥, minimum
       3♣      5♥-5♣ invite
       3♦      5♥-5♦ invite
      3♣       max, relay
       3♦      4♥, sing. minor
        3♥     asks sing (♠
       3♥      5♥
       3♠      4♥, sing. ♠
       3NT      4♥, bal
      3♥       4♥, bare minimum
      4♥       
     2NT        4♥-4♠ invite
      3♣       max, asks if pd has weak doubleton (or less) in the suit
       3♥      weak doubleton or worse in ♣
       3NT      better than weak doubleton in ♣
      3♦       max, asks if pd has weak doubleton (or less) in the suit
       3♥      weak doubleton or worse in ♦
       3NT      better than weak doubleton in ♦
      3♥       
      3♠       
      3NT       
      4♥       
      4♠       
     3♣        5+♥, GF, any shape
      3♦       misfit, or xxx ♥ with interest in NT
       3♥      short ♠ or 5♥-4m-2-2
        3♠     xxx ♥, suggests 3N
         3NT    
         4♣    5♥-4♣-2-2 slammish
          4♦   cue for ♣
          4♥   
          4♠   cue for ♣
          5♣   
         4♦    5♥-4♦-2-2 slammish
          4♥   
          4♠   cue for ♦
          5♣   cue for ♦
          5♦   
        3NT     no ♥ fit, ♠ stopped
         4♣    5♥-4♣-2-2 slammish
          4♦   cue for ♣
          4♥   
          4♠   cue for ♣
          5♣   
         4♦    5♥-4♦-2-2 slammish
          4♥   
          4♠   cue for ♦
          5♣   cue for ♦
          5♦   
       3♠      short ♦, any strength
       3NT      short ♣, no slam
       4♣      short ♣, slam try
       4♦      6+♥-4♦, slammish
       4♥      6+♥-4♣, slammish
       4♠      5♥-4♦-4♣
      3♥       Hxx or better ♥ fit
       3♠      slam try, no 4m, might not have ♠ cue
       3NT      
       4♣      slam try
       4♦      slam try
       4♥      
      3♠       max, xxx(x) ♥, no minor
      4♣       max, xxx(x) ♥, 4♣
      4♦       max, xxx(x) ♥, 4♦
     3♦        6+♥, invite to game or slam
      3♥       minimum
       3♠      slammish cue
       3NT      slammish, bal
       4♣      slammish cue
       4♦      slammish cue
       4♥      had a mild slam try, but no longer
      3♠       max, ♥ fit, cue
      3NT       to play opposite invite
       4♣      slammish cue
       4♦      slammish cue
       4♥      
       4♠      slammish cue
      4♣       max, ♥ fit, cue
      4♦       max, ♥ fit, cue
      4♥       bad for slam but can accept an invite
     3♥        5♥-5♠ invite
     3♠        6+♥, slammish, any splinter
      3NT       asks splinter (4♥
     3NT        choice of games, 5332/5422
     4♣        5♥-5♣, slammish, at least 3 top honors in the two suits
      4♦       asks # top honors in the 2 suits (3, 4, ...)
      4♥       minimum, misfit
      4♠       cue, 3 top honors in ♥/♣
      4NT       cue in ♦, no ♠ cue, 3 top honors in ♥/♣
      5♣       minimum, misfit
     4♦        5♥-5♦, slammish, at least 3 top honors in the two suits
      4♥       minimum, misfit
      4♠       asks num top honors in the 2 suits (3, 4, 5...)
      4NT       cue in ♠, 3 top honors in ♥/♣
      5♣       cue in ♣, no ♠ cue, 3 top honors in ♥/♣
      5♦       minimum, misfit
     4♥        does not exist, you forgot to bid 4♣ or 4♥ instead of 2♦, good luck
    2♠         max, 4♥, useful doubleton in ♠
     3♦        re-transfer
      3♥       forced
       Pass      weak 5+♥
       3♠      cue for ♥
       4♣      cue for ♥
       4♦      cue for ♥
       4♥      4+♥
    2NT         max, 4♥, useful doubleton in ♦
     3♦        re-transfer
      3♥       forced
       Pass      weak 5+♥
       3♠      cue for ♥
       4♣      cue for ♥
       4♦      cue for ♥
       4♥      4+♥
    3♣         max, 4♥, useful doubleton in ♣
     3♦        re-transfer
      3♥       forced
       Pass      weak 5+♥
       3♠      cue for ♥
       4♣      cue for ♥
       4♦      cue for ♥
       4♥      4+♥
   2♥          transfer, may be 4♠ invite, even 5♥-4♠ invite
    2♠         normal accept
     2NT        invite, 4♠
      3♣       asks if pd unbalanced
       3♦      sing. ♦
       3♥      sing. ♥
       3♠      sing. ♣
       3NT      no sing.
      3♠       
      3NT       
      4♠       
     3♣        GF, 5+♠, any shape
      3♦       misfit, or xxx ♠ with interest in NT
       3♥      short ♥ or 5♠-4m-2-2
        3♠     xxx ♠, suggests 3N
         3NT    
         4♣    5♠-4♣-2-2 slammish
          4♦   cue for ♣
          4♥   
          4♠   cue for ♣
          5♣   
         4♦    5♠-4♦-2-2 slammish
          4♥   
          4♠   cue for ♦
          5♣   cue for ♦
          5♦   
        3NT     no ♠ fit, ♥ stopped
         4♣    5♠-4♣-2-2 slammish
          4♦   cue for ♣
          4♥   
          4♠   cue for ♣
          5♣   
         4♦    5♠-4♦-2-2 slammish
          4♥   
          4♠   cue for ♦
          5♣   cue for ♦
          5♦   
       3♠      short ♦, any strength
       3NT      short ♣, no slam
       4♣      short ♣, slam try
       4♦      6+♠-4♦, slammish
       4♥      5♠-4♦-4♣
       4♠      6+♠-4♣, slammish
      3♥       xxx(x) ♠, no minor
       3♠      slam try, no 4m, might not have ♠ cue
       3NT      
       4♣      slam try
       4♦      slam try
       4♥      
      3♠       Hxx or better raise
       3NT      
       4♣      slam try
       4♦      slam try
       4♥      slam try, no minor
       4♠      
      4♣       max, xxx(x) ♠, 4♣
      4♦       max, xxx(x) ♠, 4♦
     3♦        6+♠, invite to game or slam
      3♥       max, ♠ fit, cue
       3♠      slammish cue
       3NT      slammish, bal
       4♣      slammish cue
       4♦      slammish cue
       4♥      had a mild slam try, but no longer
      3♠       minimum
       3NT      slammish, bal
       4♣      slammish cue
       4♦      slammish cue
       4♥      slammish cue
       4♠      had a mild slam try, but no longer
      3NT       to play opposite invite
       4♣      slammish cue
       4♦      slammish cue
       4♥      slammish cue
       4♠      
      4♣       max, ♠ fit, cue
      4♦       max, ♠ fit, cue
      4♠       can accept game invite, but bad for slam
     3♥        5♥-4♠ invite
     3♠        6+♠, slammish, any singleton
      3NT       asks for singleton
     3NT        5332/5422, choice of games
     4♣        5♠-5♣, slammish, at least 3 top honors between the two suits
      4♦       asks # top honors in the 2 suits (3, 4...)
      4♥       cue, 3 top honors in the ♠/♣
      4♠       minimum, misfit
      4NT       ♦ cue, no ♥ cue, 3 top honors in the ♠/♣
      5♣       minimum, misfit
     4♦        5♠-5♦, slammish, at least 3 top honors between the 2 suits
      4♥       asks # top honors in ♠/♦ (3, 4..)
      4♠       min misfit
      4NT       cue in ♥, 3 of top 3 honors between ♠/♦
      5♣       cue, no ♥ cue, 3 of top 3 honors between ♠/♦
      5♦       min misfit
     4♠        does not exist, you forgot to bid 4♦ or 4♠ instead of 2♥, good luck
    2NT         max, 4♥, useful doubleton in ♥
     3♥        re-transfer
      3♠       forced
       3NT      
       4♣      cue, slammish
       4♦      cue, slammish
       4♥      cue, slammish
       4♠      
    3♣         max, 4♥, useful doubleton in ♣
     3♥        re-transfer
      3♠       forced
       3NT      
       4♣      cue, slammish
       4♦      cue, slammish
       4♥      cue, slammish
       4♠      
    3♦         max, 4♥, useful doubleton in ♦
     3♥        re-transfer
      3♠       forced
       3NT      
       4♣      cue, slammish
       4♦      cue, slammish
       4♥      cue, slammish
       4♠      
   2♠          a) weak ♦ single-suiter, or b) invit to 3N, or c) 5-5 minors any strength, or d) 5+-4 minors GF+
    2NT         minimum
     Pass        bal invite
     3♣        5-5 minors weak or invite (pass/correct)
     3♦        6+♦ 1-suiter, signoff
     3♥        5+-4+ minors, 0-1♥, 2-3♠
     3♠        5+-4+ minors, 0-1♠, 2-3♥
    3♣         max, ♣ preference over ♦
     Pass        5-5 minors, weak
     3♦        6+♦ 1-suiter, signoff
     3♥        5+-4+ minors, 0-1♥, 2-3♠, GF
     3♠        5+-4+ minors, 0-1♠, 2-3♥, GF
    3♦         max, ♦ preference over ♣
     Pass        weak, 5-5 minors or 6+♦ 1-suiter
     3♥        5+-4+ minors, 0-1♥, 2-3♠, GF
     3♠        5+-4+ minors, 0-1♠, 2-3♥, GF
   2NT          asks for a weak doubleton (could have a 6+ crd suit hoping to run)
    3♣         weak doubleton
    3♦         weak doubleton
    3♥         weak doubleton
    3♠         weak doubleton
    3NT         no weak doubleton
   3♣          GF splinter
    3♦         
     3♥        
     3♠        
    3♥         
    3♠         
    3NT         no side suit
   3♦          GF splinter
    3♥         
    3♠         
    3NT         no major, ♦ stopped
    4♣         not great ♦ stopper
   3♥          GF splinter, 4♠
   3♠          GF splinter, 4♥
   3NT          
   4♣          South African Texas to ♥, no slam
    4♥         forced
   4♦          South African Texas to ♠, no slam
    4♠         forced
   4♥          
   4♠          
   4NT          Blackwood (0, 1, 2...) - quant goes through 2♣...3♦ usually
  2♣           either 6+♣, or 5+♣ 20+, or GF balanced hand
   2♦          relay, no 5M or good 5♦
    2♥         any max, or 20-22 with 4♥
     2♠        relay
      2NT       25+ bal
       3♣      asks to bid suits up the line
       3♦      5+♦, 0-4 HCP, may have 4M
       3♥      5+♣, 4♥
       3♠      5+♣, 4♠
      3♣       5+♣-4♥ 20-22
       3♦      [5+♦ 1-suiter], or [cue for ♥]
       3♥      to play
       3♠      [♠ stop, no ♦ stop], or [cue for ♥]
       3NT      
       4♥      no slam interest
      3♦       23+, 5+♣-4♦
      3♥       23+, 5+♣-4♥
      3♠       23+, 5+♣-4♠
      3NT       6+♣, max, all side suits stopped
     2NT        3-4 HCP, 4♥, NF
     3♣        3-4 HCP, 4♠, NF
    2♠         20-22, 5+♣-4♠
    2NT         20-22 6+♣ 1-suiter, or 5-4 minors 2-2
     3♣        
     3♦        if v. weak then 5+ crds
     3♥        stopper or suit (assume stopper)
     3♠        stopper or suit (assume stopper)
     3NT        to play, but no major stoppers
    3♣         17-19, 6+♣
     3♦        stopper
      3♥       ♥ stopper, may also have ♠ stopper
      3♠       ♠ stopper, no ♥ stopper
      3NT       no M stoppers
     3♥        stopper, no ♦ stopper, may have ♠ stopper
     3♠        stopper, no red stopper
     3NT        no side stops
    3♦         6♣-5♦ GF
    3♥         6♣-5♥ GF
    3♠         6♣-5♠ GF
   2♥          F1
    2♠         5+♣-4♠ 20+
    2NT         positive force, ♠/♦ values, usually 19+ 1-suiter
    3♣         17-19 6+♣ 1-suiter
    3♦         5+♣-4♦
    3♥         3+♥, minimum
    3♠         5+♣-4♠ GF
    3NT         
    4♣         ♣A, 5+♣, 4♥ 20+
    4♦         no ♣A, 5+♣, 4♥ 20+
    4♥         great raise, but bad for slam
   2♠          F1, denies 5♥
    2NT         positive force, red values, F1, usually 19+ 1-suiter
     3♥        5+♠-4+♥, invite
    3♣         17-19, 6+♣ no fit
     3♥        5+♠-4+♥ invite
    3♦         5+♣-4♦ GF
    3♥         5+♣-4♥ GF
    3♠         minimum raise
    3NT         
    4♣         20+ 5+♣ 4♠, ♣A
    4♦         cue, 20+ 5+♣ 4♠, no ♣A
    4♥         cue, 20+ 5+♣ 4♠, no ♣A
    4♠         great raise, but no slam
   2NT          5+♦, F1
    3♣         denies 3+♦, most hands
     3♦        asks to bid stoppers up the line
     3♥        
     3♠        
     3NT        both majors stopped
    3♦         
    3♥         20+, 6+♣-5♥
    3♠         20+, 6+♣-5♠
    3NT         no ♦ interest
   3♦          5♠-4+♥ GF
   3♥          6+ crds, invite, not all strength in suit
   3♠          6+ crds, invite, not all strength in suit
   3NT          5♠-5♥
  2♦           17-19 6+♦ 1-suiter, or 20+ 5+♦ or 444-1♣
   2♥          waiting
    2♠         minimum 4♠, or any GF
     2NT        relay
      3♣       20-22, 4+♦-4♠
      3♦       23+, 1-suiter
      3♥       23+, 5+♦-4♥
      3♠       23+, 5+♦-4♠
      3NT       solid ♦, 9 tricks
    2NT         minimum, 4+♥-5+♦
    3♣         5+♦-4♣, F1
    3♦         17-19 1-suiter
    3♥         6+♦-5♥ GF
    3♠         6+♦-5♠ GF
    3NT         6+♦-5♣ GF
   2♠          
   2NT          5+♥
   3♣          
   3♦          unbalanced
  2♥           Kokish: GF 5+♥, or 23-24 balanced
   2♠          
    2NT         23-24 bal (nat continuations)
    3♣         5+♥-4+♣
    3♦         5+♥-4+♦
    3♥         6+♥
    3♠         5+♥-4♠
   2NT          AQxxx/KQxxx ♠
   3♣          AQxxx/KQxxx
   3♦          AQxxx/KQxxx
   3♥          AQxxx/KQxxx
  2♠           
  2NT           21-22, denies 4M or 5m (bid 1M/2m otherwise)
   3♣          signoff in any suit
    3♦         no game interest opposite ♦
     Pass        5+♦ weak
     3♥        
     3♠        
     3NT        signoff in ♣
    3♥         game interest in ♦, but not ♣
     Pass        5+♥, weak
     3♠        
     3NT        diamonds
     4♣        
   3♦          minor suit relay
    3♥         2♠-3♥-4-4
    3♠         3♠-2♥-4-4
    3NT         4m-333
   3♥          
   3♠          
   3NT          
   4♣          2 top honors
   4♦          2 top honors
  3♣           17-20, 5+♦-5+♣
  3♦           21+ HCP, 5+♦-5+♣
  3♥           9 tricks
  3♠           9 tricks
 1♥            0-2 controls, 7+ HCP, GF
  1♠           
   1NT          waiting, no good 5-crd suit, may have Hxx support
    2♣         nat, or bal 23+
     2♦        less than Hxx ♠ support
      2♥       5♠-4♣
      2♠       6♠-4♣
      2NT       5332 23+
      3♣       5♠-5♣
     2♥        Hxxx or better ♣
     2♠        Hxx ♠, denies Hxxx ♣
     2NT        Hxx ♠, and 4+♣
    2♦         
    2♥         
    2♠         
    2NT         
    3♣         slammish 2-suiter
    3♦         slammish 2-suiter
    3♥         slammish 2-suiter
   2♣          denies Hxx or better ♠
   2♦          denies Hxx or better ♠
   2♥          denies Hxx or better ♠
   2♠          Hxx or better support, with bad 5-crd side suit (2N asks which)
   3♣          Hxx or better ♠, good 5+ suit (fit jump)
   3♦          Hxx or better ♠, good 5+ suit (fit jump)
   3♥          Hxx or better ♠, good 5+ suit (fit jump)
   3♠          good 5+ ♠ (2 top honors likely)
   4♠          denies Hxx or better support
  1NT           
   2♣          
   2♦          
   2♥          
    2NT         Hxx or better support
    4♥         Jxx(x) or worse support, no good side suit
   2♠          
    2NT         Hxx or better support
    4♠         Jxx(x) or worse support, no good side suit
  2♣           
   2♦          waiting, denies ability to make any other bid
   2♥          
   2♠          
   2NT          5+♦
   3♣          Hxx or better support, 5+♦
   3NT          
  2♦           
   2♥          waiting, can't make any other bid
   2♠          
   2NT          5+♥
   3♣          
   3♦          Hxx or better ♦, 5+ ♣
   3NT          
  2♥           
   2♠          denies Hxx or better ♥
   2NT          bal, may have Hxx support
    3♣         2-suiter with ♣ or ♠, or slammish balanced
     3♦        denies 3♥
      3♥       5+♥-4♣
      3♠       5+♥-4♠
      3NT       slammish balanced
      4♣       5+♥-5+♣
     3♥        3♥, no ♠ or ♣ interest
     3♠        3♥, spade interest
      3NT       4♠
      4♣       cue for ♥, denies 4♠
      4♦       cue for ♥, denies 4♠
      4♥       denies ♠
     3NT        3♥, interest in ♣
      4♣       
      4♦       slamtry ♥, denies 4♣
      4♥       denies 4+♣
    3♦         5♥-4+♦
    3♥         
    3♠         6♥-5♠
    4♣         4♠-5♥-4♦
    4♦         4♠-5♥-4♣
    4♥         5♥-4♦-4♣
   3♣          
   3♦          
   3♥          Hxx or better ♥, weak side 5-crd suit (3♠ asks [3N
   3♠          fit-showing jump, Hxx or better ♥ and 5+ great ♠
   4♣          fit-showing jump, Hxx or better ♥ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♥ and 5+ great ♦
   4♥          denies Hxx or better support
  2♠           great suit
  3♣           great suit
  3♦           great suit
  3♥           great suit
 1♠            3 controls, GF
  1NT           no 5-crd suit
   2♥          
    2NT         Hxx or better support
    4♥         Jxx(x) or worse support, no good side suit
   2♠          
    2NT         Hxx or better support
    4♠         Jxx(x) or worse support, no good side suit
  2♣           
   2♦          relay, can't make any other bid, may have Hxx support
    2NT         4♦
   2♥          
   2♠          
   2NT          5+♦
   3♣          Hxx or better support, and 5+♦
   3♥          AKQxxx
   3♠          AKQxxx
   3NT          
  2♦           
  2♥           
   2♠          denies Hxx or better ♥
   2NT          bal, may have Hxx support
    3♣         2-suiter with ♣ or ♠, or slammish balanced
     3♦        denies 3♥
      3♥       5+♥-4♣
      3♠       5+♥-4♠
      3NT       slammish balanced
      4♣       5+♥-5+♣
     3♥        3♥, no ♠ or ♣ interest
     3♠        3♥, spade interest
      3NT       4♠
      4♣       cue for ♥, denies 4♠
      4♦       cue for ♥, denies 4♠
      4♥       denies ♠
     3NT        3♥, interest in ♣
      4♣       
      4♦       slamtry ♥, denies 4♣
      4♥       denies 4+♣
    3♦         5♥-4+♦
    3♥         
    3♠         6♥-5♠
    4♣         4♠-5♥-4♦
    4♦         4♠-5♥-4♣
    4♥         5♥-4♦-4♣
   3♣          
   3♦          
   3♥          Hxx or better ♥, weak side 5-crd suit (3♠ asks [3N
   3♠          fit-showing jump, Hxx or better ♥ and 5+ great ♠
   4♣          fit-showing jump, Hxx or better ♥ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♥ and 5+ great ♦
   4♥          denies Hxx or better support
  2♠           
   2NT          bal, may have Hxx support
    3♣         natural, or slammish balanced
     3♦        no ♠ fit
      3♥       5+♠-4+♣
      3♠       6♠-4+♣
      3NT       slammish balanced
      4♣       5+♠-5+♣
     3♥        3♠, interest in ♣
     3♠        3♠, no ♣ interest
    3♦         
    3♥         
    3♠         
    4♣         5♠-4♥-4♦
    4♦         5♠-4♥-4♣
    4♥         5♠-4♦-4♣
   3♣          
   3♦          
   3♥          denies Hxx or better ♠
   3♠          Hxx or better ♠, weak 5-crd side suit (3N asks for it)
   4♣          fit-showing jump, Hxx or better ♠ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♠ and 5+ great ♦
   4♥          fit-showing jump, Hxx or better ♠ and 5+ great ♥
   4♠          denies Hxx or better support
  2NT           5-5 in m's, M's, or non-touching suits
   3♣          
    3♦         5♦-5♠
    3♥         5♥-5♣
    3♠         5♠-5♥
    3NT         5♦-5♣
  3♣           great suit
  3♦           great suit
  3♥           great suit
  3♠           great suit
 1NT            4 controls, GF
  2♣           2-suiter with 5+♣, or balanced
   2♦          no 5M
    2♥         balanced
    2♠         balanced
    2NT         4♦ balanced
    3♣         4♣-333 balanced
    3♦         5♣-4♦ slammish
    3♥         5♣-4♥ slammish
    3♠         5♣-4♠ slammish
   2♥          
   2♠          
   2NT          5+♦
  2♦           
   2♥          waiting, may have Hxx support, can't make any other bid
   2♠          
   2NT          5+♥
   3♣          
   3♦          Hxx or better ♦, 5+♣
   3♥          AKQxxx
   3♠          AKQxxx
  2♥           
   2♠          denies Hxx or better ♠
   2NT          bal, may have Hxx support
    3♣         2-suiter with ♣ or ♠, or slammish balanced
     3♦        denies 3♥
      3♥       5+♥-4♣
      3♠       5+♥-4♠
      3NT       slammish balanced
      4♣       5+♥-5+♣
     3♥        3♥, no ♠ or ♣ interest
     3♠        3♥, spade interest
      3NT       4♠
      4♣       cue for ♥, denies 4♠
      4♦       cue for ♥, denies 4♠
      4♥       denies ♠
     3NT        3♥, interest in ♣
      4♣       
      4♦       slamtry ♥, denies 4♣
      4♥       denies 4+♣
    3♦         5♥-4+♦
    3♥         
    3♠         6♥-5♠
    4♣         4♠-5♥-4♦
    4♦         4♠-5♥-4♣
    4♥         5♥-4♦-4♣
   3♣          
   3♦          
   3♥          Hxx or better ♥, weak side 5-crd suit (3♠ asks [3N
   3♠          fit-showing jump, Hxx or better ♥ and 5+ great ♠
   4♣          fit-showing jump, Hxx or better ♥ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♥ and 5+ great ♦
   4♥          Jxx(x) or worse support
  2♠           
   2NT          bal, may have Hxx support
    3♣         natural, or slammish balanced
     3♦        no ♠ fit
      3♥       5+♠-4+♣
      3♠       6♠-4+♣
      3NT       slammish balanced
      4♣       5+♠-5+♣
     3♥        3♠, interest in ♣
     3♠        3♠, no ♣ interest
    3♦         
    3♥         
    3♠         
    4♣         5♠-4♥-4♦
    4♦         5♠-4♥-4♣
    4♥         5♠-4♦-4♣
   3♣          
   3♦          
   3♥          denies Hxx or better ♠
   3♠          Hxx or better ♠, weak side 5-crd suit (3N asks for it)
   4♣          fit-showing jump, Hxx or better ♠ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♠ and 5+ great ♦
   4♥          fit-showing jump, Hxx or better ♠ and 5+ great ♥
   4♠          Jxx(x) or worse support
  2NT           6+♣
  3♣           great suit
  3♦           great suit
  3♥           great suit
  3♠           great suit
 2♣            5 controls, GF
  2♦           
   2♥          balanced
   2♠          
   2NT          5+♥
   3♣          
   3♦          
   3♥          AKQxxx
   3♠          AKQxxx
  2♥           
   2♠          denies Hxx or better ♥
   2NT          bal, may have Hxx support
    3♣         2-suiter with ♣ or ♠, or slammish balanced
     3♦        denies 3♥
      3♥       5+♥-4♣
      3♠       5+♥-4♠
      3NT       slammish balanced
      4♣       5+♥-5+♣
     3♥        3♥, no ♠ or ♣ interest
     3♠        3♥, spade interest
      3NT       4♠
      4♣       cue for ♥, denies 4♠
      4♦       cue for ♥, denies 4♠
      4♥       denies ♠
     3NT        3♥, interest in ♣
      4♣       
      4♦       slamtry ♥, denies 4♣
      4♥       denies 4+♣
    3♦         5♥-4+♦
    3♥         
    3♠         6♥-5♠
    4♣         4♠-5♥-4♦
    4♦         4♠-5♥-4♣
    4♥         5♥-4♦-4♣
   3♣          
   3♦          
   3♥          Hxx or better ♥, weak side 5-crd suit (3♠ asks for it [3N
   3♠          fit-showing jump, Hxx or better ♥ and 5+ great ♠
   4♣          fit-showing jump, Hxx or better ♥ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♥ and 5+ great ♦
   4♥          Jxx(x) or worse support
  2♠           
   2NT          bal, may have Hxx support
    3♣         natural, or slammish balanced
     3♦        no ♠ fit
      3♥       5+♠-4+♣
      3♠       6♠-4+♣
      3NT       slammish balanced
      4♣       5+♠-5+♣
     3♥        3♠, interest in ♣
     3♠        3♠, no ♣ interest
    3♦         
    3♥         
    3♠         
    4♣         5♠-4♥-4♦
    4♦         5♠-4♥-4♣
    4♥         5♠-4♦-4♣
   3♣          
   3♦          
   3♥          denies Hxx or better ♠
   3♠          Hxx or better ♠, weak side 5-crd suit (3N asks for it)
   4♣          fit-showing jump, Hxx or better ♠ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♠ and 5+ great ♦
   4♥          fit-showing jump, Hxx or better ♠ and 5+ great ♥
   4♠          Jxx(x) or worse support
  2NT           balanced without 4+♦
   3♣          
    3♦         denies 4♣, shows at least one 4M
     3♥        
      3♠       
      3NT       4♥, denies 4♠
    3♥         4♥-4♣
    3♠         4♠-4♣
    3NT         4-5♣, no M
  3♣           
  3♦           
  3♥           great suit
  3♠           great suit
  4♣           great suit
  4♦           great suit
 2♦            6 controls, GF
  2♥           
   2♠          denies Hxx or better ♥
   2NT          bal, may have Hxx support
    3♣         2-suiter with ♣ or ♠, or slammish balanced
     3♦        denies 3♥
      3♥       5+♥-4♣
      3♠       5+♥-4♠
      3NT       slammish balanced
      4♣       5+♥-5+♣
     3♥        3♥, no ♠ or ♣ interest
     3♠        3♥, spade interest
      3NT       4♠
      4♣       cue for ♥, denies 4♠
      4♦       cue for ♥, denies 4♠
      4♥       denies ♠
     3NT        3♥, interest in ♣
      4♣       
      4♦       slamtry ♥, denies 4♣
      4♥       denies 4+♣
    3♦         5♥-4+♦
    3♥         
    3♠         6♥-5♠
    4♣         4♠-5♥-4♦
    4♦         4♠-5♥-4♣
    4♥         5♥-4♦-4♣
   3♣          
   3♦          
   3♥          Hxx or better ♥, weak side 5-crd suit (3♠ asks for it [3N
   3♠          fit-showing jump, Hxx or better ♥ and 5+ great ♠
   4♣          fit-showing jump, Hxx or better ♥ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♥ and 5+ great ♦
   4♥          Jxx(x) or worse support
  2♠           
   2NT          bal, may have Hxx support
    3♣         natural, or slammish balanced
     3♦        no ♠ fit
      3♥       5+♠-4+♣
      3♠       6♠-4+♣
      3NT       slammish balanced
      4♣       5+♠-5+♣
     3♥        3♠, interest in ♣
     3♠        3♠, no ♣ interest
    3♦         
    3♥         
    3♠         
    4♣         5♠-4♥-4♦
    4♦         5♠-4♥-4♣
    4♥         5♠-4♦-4♣
   3♣          
   3♦          
   3♥          denies Hxx or better ♠
   3♠          Hxx or better ♠, weak side 5-crd suit (3N asks for it)
   4♣          fit-showing jump, Hxx or better ♠ and 5+ great ♣
   4♦          fit-showing jump, Hxx or better ♠ and 5+ great ♦
   4♥          fit-showing jump, Hxx or better ♠ and 5+ great ♥
   4♠          Jxx(x) or worse support
  3♣           
  3♦           
  3♥           great suit
  3♠           great suit
  4♣           great suit
  4♦           great suit
 2♥            3-6 HCP all in the suit
  2NT           asks # HCP (3, 4, 5, 6)
 2♠            3-6 HCP all in the suit
  2NT           asks # HCP (3, 4, 5, 6)
 2NT            any solid 7-crd suit with a side void, no side controls
  3♣           asks for void
 3♣            KQxxxxx and nothing on the side
 3♦            KQxxxxx and nothing on the side
 3♥            headed by the KQ or KJ, nothing on the side
 3♠            headed by the KQ or KJ, nothing on the side
 3NT            any solid 7-crd suit without a side void, may have side controls
  4♣           asks to cue any side controls
  4♦           asks for sol suit

1♦              12-16, no major usually, unless bal and bad suit, or a strong max canape
 1♥            may be 3 cards if constructive with 5+♦
  1♠           multi: either a) 4 bad ♠ balanced, or b) 5+♦-4♣ min or max, or c) 5+♦-5+♣ minimum
   1NT          
    Pass         had 4♠
    2♣         minor 2-suiter
   2♣          invit+ checkback
    2♦         5♦-4♣, 1-2♥, minimum
    2♥         bal 12-14, 4♠-3♥
    2♠         bal 12-14, 2♥
    2NT         5♦-4♣, 1-2♥, maximum
    3♣         5♦-5♣, 0-2♥, minimum
    3♦         5♦-4♣-3♥, minimum
    3♥         5♦-5♣-3♥, minimum
    3♠         6♦-4♣-3♥ minimum
    3NT         5♦-4♣-3♥ maximum
    4♣         5♦-5♣-3♥ maximum
    4♦         6♦-4♣-3♥ maximum
   2♦          constructive, 5♦, 3-4♥
   2♥          
   2♠          5+♠-4+♥, GF reverse
    2NT         5♦-4♣, no good ♠ fit
    3♣         5♦-5♣, no good ♠ fit, minimum
    3♦         5♦-4♣, no good ♠ fit, maximum
    3♥         cue for ♠, good support and a good hand
    3♠         4♠ bal 12-14
    3NT         5♦-4♣, misfit, minimum
    4♣         cue for ♠, good support and a good hand
    4♦         cue for ♠, good support and a good hand
  1NT           12-14 bal, denies 4♠
   2♣          checkback: invit+ relay, or signoff in 3♣
    2♦         2♥
     2♥        NF
      2NT       
     2♠        GF relay
      2NT       4-4 minors
      3♣       3♠-2♥-3♦-5♣
      3♦       3♠-2♥-5♦-3♣
     3♣        
    2♥         3♥, minimum
     2♠        GF relay
      2NT       4-4 minors
      3♣       4♣-333
      3♦       4♦-333
      3♥       5♣-3♥
      3♠       5♦-3♥
     3♣        
    2♠         5♣-4♦-2-2, conc. in the minors
     3♣        
    2NT         3♥, maximum
     3♣        
   2♦          constructive, 5♦, 3-4♥
   2♥          
   2♠          reverse, 5+♠-4+♥ GF
   2NT          11-12
   3♣          4♥-5+♣ GF
   3♦          4♥-5+♦ GF
   3♥          
  2♣           5+♣-4♦, or 6+♣ 0+♦
   2♦          invit+ relay
    2♥         3♥, not 6♣-4♦
     2♠        
      2NT       ♣ 1-suiter, maximum
      3♣       ♣ 1-suiter, minimum
      3♦       5+♣, 4♦, minimum, 3 bad ♥
      3♥       5+♣, 4♦, 3 bad ♥, maximum
    2♠         5♣-4♦, minimum, denies 3♥
    2NT         ♣ 1-suiter, maximum, denies 3♥
    3♣         ♣ 1-suiter, minimum, denies 3♥
    3♦         5♣, 4♦, maximum, denies 3♥
    3♥         6♣-4♦, 3♥ (good or bad), minimum
    3♠         6♣-4♦, 3 bad ♥, maximum
    3NT         6♣-4♦, Hxx ♥, maximum
   2♥          
   2♠          5+♠-4♥ GF
   2NT          
   3♣          
   3♦          4♥-5+♦ GF
   3♥          
   3NT          
  2♦           
   2♥          
   2♠          GF, 5+♠, 4+♥
   2NT          asks for 3-crd support, invit+
   3♣          4♥, 5+♣ GF
   3♦          
   3♥          
   3NT          
   4♦          4♥, 5+♦ GF
  2♥           4 bad crds, or good 3 cards with stiff ♠
  2♠           5+♠, 4+♦, 8 tricks
   2NT          
    3♣         6♠-4♦-3♣
    3♦         5♠-5♦-(2-1)
    3♥         6♠-4♦-3♥
    3♠         6♠-4♦-(2-1)
    3NT         5♠-5♦-3♣
    4♣         5♠-5♦-3♥
    4♦         6♠-5♦
  2NT           5♦-5♣ 14-16
  3♣           5♦-5♣ 8 tricks
  3♦           6♦-4♣, 8 tricks
  3♥           5+♥, 4+♦ 8 tricks
 1♠            
  1NT           12-14, bal or 5-4 minors 3♥-1♠
   2♣          checkback: invit+ relay or signoff in 3♣
    2♦         2♠
     2♥        
      2♠       5-4 minors, 3♥-1♠
      2NT       4-4 minors
      3♣       5♣
      3♦       5♦
     2♠        NF
      2NT       
    2♥         5-4 minors-2-2
    2♠         3♠, minimum
     2NT        GF relay
      3♣       4♣, denies 4♦
      3♦       4♦, denies 4♣
      3♥       5♣
      3♠       5♦
      3NT       4-4 minors
   2♦          5♦-4♠
   2♥          5+♠-4+♥
   2♠          
   2NT          11-12
   3♣          4♠-5+♣ GF
   3♦          4♠-5+♦ GF
   3♥          4♠-5+♥ GF
   3♠          
   3NT          
  2♣           5+♣-4+♦, or 6+♣ 0+♦
   2♦          invit+ relay
    2♥         5♣-4♦, 0-2♠, minimum
    2♠         3 bad ♠, not 6♣-4♦
     2NT        invit+ relay
      3♣       ♣ 1-suiter, minimum
      3♦       5+♣-4♦, 3♠, minimum
      3♥       5+ good ♣, maximum
      3♠       ♣ 1-suiter, maximum
    2NT         ♣ 1-suiter, maximum, denies 3♠
    3♣         ♣ 1-suiter, minimum, denies 3♠
    3♦         5♣-4♦, maximum, denies 3♠
    3♥         6♣-4♦-3♠ minimum
    3♠         6♣-4♦, xxx ♠, maximum
    3NT         6♣-4♦, Hxx ♠, maximum
   2♥          5+♠-4+♥
   2♠          
   2NT          
   3♣          
   3♦          4♠-5+♦ GF
   3♥          4♠-5+♥ GF
   3♠          
   3NT          
  2♦           6+crds or good 5
   2♥          5+♠-4+♥
   2♠          
   2NT          invit+ relay, asks for 3-crd supp.
   3♣          4♠-5+♣ GF
   3♦          
   3♥          4♠-5+♥ GF
   3♠          
   3NT          
   4♦          4♠-5+♦
  2♥           reverse: 5+♥, 4+♦, 8 tricks
   2NT          
    3♣         6♥-4♦-3♣
    3♦         5♥-5♦-(2-1)
    3♥         6♥-4♦-(2-1)
    3♠         6♥-4♦-3♠
    3NT         5♥-5♦-3♣
    4♣         5♥-5♦-3♠
    4♦         6♥-5♦
  2♠           4 weak ♠ bal, or 3 good ♠ and sing. ♥
  2NT           5♦-5♣ 14-16
  3♣           5♦-5♣ 8 tricks
  3♦           6♦-4♣ 8 tricks
 1NT            6-10, may have a 4M
  2♣           5+♣-4+♦, or 6+♣ 0+♦
  2♦           6+ or good 5 cards
  2♥           5+♥-4+♦ 8 tricks
   2NT          
    3♣         6♥-4♦-3♣
    3♦         5♥-5♦-(2-1)
    3♥         6♥-4♦-(2-1)
    3♠         6♥-4♦-3♠
    3NT         5♥-5♦-3♣
    4♣         5♥-5♦-3♠
    4♦         6♥-5♦
  2♠           5+♠-4+♦ 8 tricks
   2NT          
    3♣         6♠-4♦-3♣
    3♦         5♠-5♦-(2-1)
    3♥         6♠-4♦-3♥
    3♠         6♠-4♦-(2-1)
    3NT         5♠-5♦-3♣
    4♣         5♠-5♦-3♥
    4♦         6♠-5♦
  2NT           5-5 minors 14-16
  3♣           5-5 minors, 8 tricks
  3♦           6♦-4♣, 8 tricks
 2♣            nat GF, or bal invite, may be canape
  2♦           most hands
   2♥          5+♥, 4+♣
    2♠         balanced without ♠ stopper, 4th suit forcing
    2NT         balanced, unbid suits stopped
    3♣         
    3♦         6+♦ 1-suiter
    3♥         Hxx or better support, bal or 5♦
    3♠         Hxx or better support, 5+♦
    3NT         Hxx or better support, 5+♣
    4♣         5♣-4♦-3♥, max
    4♦         5♦-4♣-3♥, max
    4♥         Hxx or better support, void in ♠
   2♠          5+♠-4+♣
    2NT         ♥ stopper, denies Hxx or better ♠
    3♣         
    3♦         6+♦ 1-suiter
    3♥         balanced without a ♥ stopper, 4th suit forcing
    3♠         Hxx or better support
    3NT         Hxx or better support, 5+♣
    4♣         5♣-4♦-3♠, maximum
    4♦         5♦-4♣-3♠, maximum
    4♥         Hxx or better support, ♥ void
   2NT          11-12
   3♣          nat GF
   3♦          5+♦-4+♣ slammish
  2♥           5+♥-4+♦ 8 tricks
   2NT          
    3♣         6♥-4♦-3♣
    3♦         5♥-5♦-(2-1)
    3♥         6♥-4♦-(2-1)
    3♠         6♥-4♦-3♠
    3NT         5♥-5♦-3♣
    4♣         5♥-5♦-3♠
    4♦         6♥-5♦
  2♠           5+♠-4+♦ 8 tricks
   2NT          
    3♣         6♠-4♦-3♣
    3♦         5♠-5♦-(2-1)
    3♥         6♠-4♦-3♥
    3♠         6♠-4♦-(2-1)
    3NT         5♠-5♦-3♣
    4♣         5♠-5♦-3♥
    4♦         6♠-5♦
  2NT           6+♦ 1-suiter, maximum, but not 2/top 3 honors
  3♣           5♦-5♣, non-minimum
  3♦           6♦-4♣ 8 tricks
 2♦            GF relay
  2♥           most hands
   2♠          5+♠-4+♦ GF
   2NT          5+♥-4+♦ GF
   3♣          5+♦, 3-4♣
   3♦          6+♦ 1-suiter
    3♥         ♦ fit and ♥ stopper
    3♠         ♦ fit and ♠ stopper, no ♥ stopper
    3NT         both majors stopped
  2♠           5+♠-4+♦, 8 tricks
   2NT          
    3♣         6♠-4♦-3♣
    3♦         5♠-5♦-(2-1)
    3♥         6♠-4♦-3♥
    3♠         6♠-4♦-(2-1)
    3NT         5♠-5♦-3♣
    4♣         5♠-5♦-3♥
    4♦         6♠-5♦
  2NT           5+♥-4+♦, 8 tricks
   3♣          
    3♦         5♥-5♦-(2-1)
    3♥         6♥-4♦-(2-1)
    3♠         6♥-4♦-3♠
    3NT         5♥-5♦-3♣
    4♣         6♥-4♦-3♣
    4♦         5♥-5♦-3♠
    4♥         6♥-5♦
  3♣           5+♦-4+♣, 8 tricks
  3♦           6+♦ 1-suiter
 2♥            solid 6+crds
 2♠            solid 6+crds
 2NT            15-19 bal, no 4M/5m
  3♣           relay, interest in minors
   3♦          4♦, denies 4♣, 15-17
   3♥          4-4 minors, 3♥, 15-17
   3♠          4-4 minors, 3♠ 15-17
   3NT          4♣-333 15-17
   4♣          4♣-333 18-19
   4♦          4♦-333 18-19
   4♥          4-4 minors, 3♥ 18-19
   4♠          4-4 minors, 3♠, 18-19
  3♦           
  3♥           5+♥-4+♦ 8 tricks
  3♠           5+♠-4+♦ 8 tricks
  3NT           
 3♣            AKQxxxx
 3♦            AKQxxxx

1♥              12-16, if 4-crds balanced, suit will be at least a stopper; may be canape
 1♠            
  1NT           12-14 bal or 1♠-444
   2♣          checkback: invit+ relay, or signoff in 3♣
    2♦         denies 3♠
     2♥        
     2♠        5 good or 6 bad cards
     2NT        denies 3♥ or 5 good ♠
     3♣        weak
     3♦        general slamtry, either 1-suiter that is not solid, or balanced, demands cues
     3♥        balanced
     3♠        
     3NT        
     4♣        less than HHxx ♥ support, slammish, cue
     4♦        less than HHxx ♥ support, slammish, cue
     4♥        
    2♥         5♥-3♠ 12-14
     2♠        
     2NT        
     3♣        weak
     3♦        general slamtry, demands cues, could be 1-suiter or bal
     3♥        
     3♠        
     4♣        slammish ♥ raise, cue, denies 2 of the top 3♥
     4♦        slammish ♥ raise, cue, denies 2 of the top 3♥
     4♥        
    2♠         3♠-4♥, minimum
     2NT        GF, asks for a 4-crd minor
     3♣        weak
     3♦        general slam try, demands cues, could be 1-suiter or balanced
     3♥        
     3♠        
    2NT         3♠-4♥, maximum
    3♣         1♠-444 12-14
   2♦          
   2♥          5♠-3♥, weak
   2♠          
   2NT          
   3♣          4♠-5+♣, slammish
   3♦          4♠-5+♦, slammish
   3♥          
   3♠          good 6-crd suit
   3NT          
   4♣          HHxx or better ♥, cue, slammish
   4♦          HHxx or better ♥, cue, slammish
   4♥          
   4♠          
  2♣           either ♥ or ♣ could be longer
   2♦          invit+ relay
    2♥         5♥-4♣, denies 3♠, minimum
     2♠        
     2NT        
     3♣        
    2♠         
     2NT        relay
      3♣       4♥-5♣ minimum
      3♦       4♥-5♣ maximum
      3♥       5♥-4♣ minimum
      3♠       5♥-4♣ maximum
      3NT       5♥-5♣ minimum
    2NT         maximum, ♦ stopper or 3-suiter void in ♠
     3♣        relay
      3♦       0♠-4♥-4♦-5♣
      3♥       0♠-5♥-4♦-4♣
      3♠       0♠-5♥-3♦-5♣
      3NT       4♥-5+♣, ♦ stopper, maximum
    3♣         4♥-5+♣ minimum, may have ♦ stopper
    3♦         4♥-5+♣, maximum, no ♦ stopper
    3♥         5♥-4♣ good hand, no ♦ stopper
    3♠         5♥-5+♣, maximum, no ♦ stopper
    3NT         5♥-4♣ maximum, ♦ stopper
    4♣         3♠-4♥-6♣ maximum
    4♦         5♥-5♣-3♠ maximum
    4♥         6♥-4♣-3♠, medium strength
   2♥          
   2♠          
   2NT          4♠-5+♦, weak
   3♣          
   3♦          4♠-5+♦, slammish
   3♥          
   3♠          not self-sufficient suit
   3NT          
   4♣          4♠-5+♣, strong slam try
   4♦          4♠-5+♥ to at least 2 top honors, slam try
  2♦           either ♥ or ♦ could be longer, not 5♥-4♦ maximum
   2♥          
   2♠          
   2NT          invit+ relay
    3♣         5+♥ minimum, or 5♥-5♦ maximum
     3♦        relay, interest in ♠
      3♥       minimum, denies 3♠
      3♠       minimum, 3♠
      3NT       maximum 5-5, denies 3♠
     3♠        
    3♦         minimum, 4♥, 5+♦, may have 3♠
     3♠        
    3♥         minimum, 5♥-5♦, denies 3♠
     3♠        
    3♠         max, 4♥-5+♦-3♠
    3NT         max, 5♦, denies 3♠
    4♣         5♥-5♦-3♠
   3♣          either a) 4♠-5+♣ slammish, or b) 4th suit forcing
   3♦          
   3♥          
   3♠          not self-sufficient suit
   3NT          
   4♣          4♠-5+♥, at least 2 top honors in ♥, slammish
   4♦          4♠-5+♦, slammish
  2♥           a) 15-16 5332, or b) 6+crds 1-suiter 13-16, or c) 6♥-4m 15-16, or d) 5♥-4♦ 14-16
   2♠          semiforcing, primarily interested opposite support
    Pass         denies 3♠
    2NT         does not exist
    3♣         5332 15-16, or 5♥-4♦ 14-16
     3♦        GF relay, interest in ♠ or ♦
      3♥       5♥-4♦, denies 3♠
      3♠       5♥-3♠-(3-2)
      3NT       5♥-2♠-3-3
      4♣       3♠-5♥-4♦-1♣
       4♦      sets ♦
       4♥      
       4♠      
    3♦         6♥-4♦, 15-16
    3♥         6+♥ 1-suiter, denies 3♠, at most 7.5 tricks
    3♠         6+♥ 1-suiter, 3♠, at most 7.5 tricks
    3NT         6♥-4♣, 15-16
   2NT          invit+ relay
    3♣         5332 15-16, or 5♥-4♦ 14-16
     3♦        GF relay, interest in ♠ or ♦
      3♥       5♥-4♦, denies 3♠
      3♠       5♥-3♠-(3-2)
      3NT       5♥-2♠-3-3
      4♣       3♠-5♥-4♦-1♣
       4♦      sets ♦
       4♥      
       4♠      
    3♦         6♥-4♦, 15-16
    3♥         6+♥ 1-suiter, denies 3♠, at most 7.5 tricks
    3♠         6+♥ 1-suiter, 3♠, at most 7.5 tricks
    3NT         6♥-4♣, 15-16
   3♣          4♠-5+♣, slammish
   3♦          4♠-5+♦, slammish
   3♠          
  2♠           
   2NT          invit+, asks shortness
    3♣         sing. ♣
    3♦         sing. ♦
    3♥         4♠-5♥-2-2
    3♠         balanced, minimum
    3NT         balanced, maximum
  2NT           1♠-444, or 0♠-4♥-5♦-4♣, maximum
   3♣          
   3♦          
   3♥          
   3♠          
    3NT         1♠-444
    4♣         0♠-4♥-5♦-4♣
   3NT          
   4♣          promises Hxxx or better
   4♦          promises Hxxx or better
  3♣           6♥-4+♣ or 5-5, 8 tricks
   3♦          
    3♥         6♥-4♣, denies 3♠
    3♠         6♥-4♣-3♠
    3NT         5♥-5♣, denies 3♠
    4♣         5♥-5♣-3♠
  3♦           4♥-6+ great ♦, 8 tricks
  3♥           7.5-8 tricks, 1-suiter
  3♠           max, 4♠
  3NT           6+♠-4+♥, 8 tricks, denies any 1st round control in a minor
  4♣           6+♠-4+♥, 8 tricks, 1st round control in ♣
  4♦           6+♠-4+♥, 8 tricks, 1st round control in ♦
 1NT            6-10, no M
  2♣           ♥ or ♣ could be longer
   2♦          
   2♥          
   2♠          invit+ relay, 3♥
    2NT         4♥-5+♣, minimum, ♠ stopper
    3♣         4♥-5+♣, minimum, no ♠ stopper
    3♦         4♥-5+♣-3♦, maximum
    3♥         5+♥-4+♣ minimum
    3♠         4♥-5+♣, maximum, no ♠ stopper
    3NT         4♥-5+♣, maximum, ♠ stopper
    4♥         5+♥, maximum
   2NT          invite, denies 3♥
    3♣         4♥-5+♣, minimum, no ♠ stopper
    3♦         4♥-5+♣-3♦, maximum
    3♥         5+♥-4♣, maximum, probably no ♠ stopper, usually good 5 or any 6 cards
    3♠         4♥-5+♣, maximum, no ♠ stopper
    3NT         maximum, ♠ stopper, any distribution
   3♣          8-10
  2♦           ♥ or ♦ could be longer
   2♥          
   2♠          invit+ relay, 3♥
    2NT         4♥-5+♦ minimum
    3♣         4♥-5+♦-3♣, minimum - choice of contracts
    3♦         4♥-5+♦ minimum, suit-oriented
    3♥         5+♥-4+♦ minimum
    3♠