Std English ACOL

Default principles
Offensive bidding
Bidding diagrams
1          11-19* Rule of 20 applies
 1        6+ HCP typically
  1       4+ 11*-19 pts any shape
   1      6+ HCP
    1NT     15-16 balanced
     2NT    
      3NT   To Play
     3NT    
     4NT    Blackwood
    2     5-4 or better min hand 11-14
     2    To play
     2    Fourth Suit Forcing
     2NT    
      3NT   To play
     3    
     3NT    
     4    
    2     Min hand 4441 shape or better
     2NT    
     3NT    
     4NT    Blackwood
    2     6-5 shape min hand
     2NT    
     3    
     3NT    
     4    
     4NT    Blackwood
    2     Min hand 4441 shape
     3    
     4    
     4    
     4    
     4    
     4NT    Blackwood
    2NT     17-18 balanced inv to 3NT
     3NT    
     4NT    Blackwood
    3     5-4-22 or better good hand
     3NT    
     4NT    Blackwood
    3     Showsd 4441 invitational to 3NT/5/5
     3    
     3NT    
     4    
     4    
     4    
     4NT    Blackwood
     5    
     5    
    3     6-5 or better shape good hand
     3    
     3NT    
     4    
     4    
     4    
     4NT    Blackwood
    3     4144 shape or better 15-18pts
     3NT    
     4    
     4    
     4    
     4    
     4NT    Blackwood
    3NT     19points
   1NT      6-9 HCP
    2     6-4 weak
     2    No fit
     2    Preference
    2     11-14
    2     6-5 weak hand
     2NT    
     3    Preference
     3    
     4    
    2     Fourth Suit forcing asking ptr to descride hand further
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     15-17pts shortage in
    3     6-5 15+ HCP
    3     Fourth Suit forcing
    3NT     19pts to play
   2      6-9 HCP Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9pts
    2     Fourth Suit forcing
    3     
   2      4TH Suit forcing -asks ptr for more information
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     6-5 shape no 4th suit stop
    3     Strong hand no stop in 4th suit
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2NT      11-12pts balanced
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  1       4+ 11*-19 pts any shape
   1NT      6-9 HCP
    2     6-4 weak
    2     11-14
    2     Fourth Suit Forcing
    2     6-5 Weak Hand
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     15-17pts shortage in
    3     Fourth Suit Forcing
    3     6-5 Good hand
    3NT     19pts to play
   2      6-9 HCP Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      4TH Suit forcing -asks ptr for more information
    2     6-5 shape min hand
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     6-5 shape no 4th suit stop
    3     Strong hand no stop in 4th suit
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2      6-9pts
    3     Long Suit game try
    3     17-18pts
    3NT     18-19 bal game choice
    4     
    4     
    4     
    4     
    4NT     Blackwood
   2NT      11-12pts balanced
    3NT     
    4NT     Blackwood
   3      10-11pts
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4     
    4     
    4     
    4     6-5 Slam Try
    4NT     Blackwood
    5     To Play
   3      No support for ptr 12+HCP
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4NT     Blackwood
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      Strong Reverse 16+ pts
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Stopper Showing - expressing doubt about
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       No 4 Card major weak hand 11-14
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      Strong Reverse 16+ pts
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  2       11-14HCP unbalanced
  2       17+HCP strong jump shift
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP semi - forcing
  3       4 Card Support 16+HCP semi - forcing
   3      Asking for stop for 3NT
   3      Asking for stop for 3NT
   3NT      
  3       Stopper showing concern about spades
  3       Stopper showing concern about hearts
  3NT       19HCP Balanced
  4NT       Blackwood
 1        6+ HCP typically
  1       4+ 11*-19 pts any shape
   1NT      6-9 HCP
    2     6-4 weak
    2     4th Suit Forcing
    2     3 card preference weak hand 11-14
    2     6-5 Weak Hand
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     Fourth Suit Forcing
    3     Invitational to 3NT/4
    3     6-5 Good hand
    3NT     18-19pts to play
   2      6-9 HCP Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      4th Suit Forcing
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9
    2     6-5 shape min hand
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand no stop in 4th suit
    3     6-5 Good hand
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2      6-9pts
    3     Long Suit game try
    3     17-18pts
    3NT     18-19 bal game choice
    4     
    4     
    4     
    4     
    4NT     Blackwood
   2NT      11-12pts balanced
    3NT     
    4NT     Blackwood
   3      10-11pts
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4     
    4     
    4     
    4     6-5 Slam Try
    4NT     Blackwood
    5     To Play
   3      4th Suit Forcing
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4NT     Blackwood
   3      10-12 HCP
   3      Limit raise
   3NT      13-15 HCP
   4      
   4      
   4      Single suited 13-17 HCP
   4      12-17pts
   4NT      Blackwood
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      6-9
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      Strong Reverse 16+HCP
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Strong hand 6+
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       weak hand 11-14
   2      6-9pts 5+
    2     5+-3 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     11-14 pts
    3     5+ -4+ Inv to 3NT not likely to hold Stop
    3     5+ 3 17-18pts inv to 3NT/4
    3     4th suit forcing strong hand
    3NT     19points stopped
    4NT     Blackwood
   2      6-9pts
    2     6 4+ stop unlikely
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     6 5 good hand no stop likely
    3     Inv to 3NT / 4
    3     Stopper showing asking for stop
    3NT     To Play
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     4th Suit Forcing
    3     3 min 11-14 hand
    3     3 not 3 s likely stopped
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-12pts mild game try
   3      Strong Reverse 16+HCP 5+
   3      10-12 HCP
   3      Stopper showing
   3NT      13-15 HCP
   4NT      Blackwood
  2       17+ unbalanced
   2      6-9pts
   2      4th Suit Forcing
   2NT      6-9 Bal 4th suit Stopped
   3      6-7pts
   3      6-7pts
   3      10+pts
   3      
   3NT      To play
   4      
   4      
   4      
   4      
   4NT      Blackwood
  2       11-14
   2      Long Suit Game try
   2NT      Bal 11-12 inv. to 3NT/4
   3      Game try - secondary fit
   3      Long Suit game-try
   3      11-12pts typically
   3      
   3NT      To play
   4      
   4      
   4      
   4NT      Blackwood
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       Strong Jump Shift 17+HCP
  3       16-17pts 4+ 4+
  3       Stopper showing concern about diamonds
  3NT       19HCP Balanced
  4NT       Blackwood
 1        6+ HCP typically
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      Strong Reverse 16+ pts
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Stopper Showing - expressing doubt about
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       No 4 Card major weak hand 11-14
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      Strong Reverse 16+ pts
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  2       11-14HCP unbalanced
  2       17+HCP
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       4 Card Support 16+HCP
  3       Stopper showing concern about spades
  3       Stopper showing concern about hearts
  3NT       19HCP Balanced
  4NT       Blackwood
 1NT        6-9 Balanced no 4 Card Major
  2       No 4 Card major weak hand 11-14
  2       Strong Jump Shift 17+HCP
  2       Strong Jump Shift 17+HCP
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3NT       19HCP Balanced
 2        6-9 Unbalanced
 2        Strong Jump Shift 16+HCP
 2        Strong Jump Shift 16+HCP
 2        Strong Jump Shift 16+HCP
 2NT        11-12pts balanced no 4 card major
 3        10-11 pts no 4 Card Major
  3       Asking for stop for 3NT
  3       Asking for stop for 3NT
  3       Asking for stop for 3NT
  3NT       To play 15-19 bal
 3NT        13-15pts balanced
 4NT        Blackwood

1          11-19* Rule of 20 applies
 1        6+ HCP typically
  1       4+ 11*-19 pts any shape
   1NT      6-9 HCP
    2     6-4 weak
    2     4th Suit Forcing
    2     3 card preference weak hand 11-14
    2     6-5 Weak Hand
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     Fourth Suit Forcing
    3     Invitational to 3NT/4
    3     6-5 Good hand
    3NT     18-19pts to play
   2      4th Suit Forcing
    2     3 min hand
    2     6-5 Min Hand
    2NT      stop 11-14 pts
    3     Shortage in s likey 4-0-5-4 shape
    3     6-4 or better 15+pts no stop
    3     3 good hand
    3     6-5 Good hand 15+HCP
    3NT     15-16 stop
   2      6-9pts Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9 pts
    2     6-5 shape min hand
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand no stop in 4th suit
    3     6-5 Good hand
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2      6-9pts
    3     Long Suit game try
    3     17-18pts
    3NT     18-19 bal game choice
    4     
    4     
    4     
    4     
    4NT     Blackwood
   2NT      11-12pts balanced
    3NT     
    4NT     Blackwood
   3      Fourth Suit Forcing
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4     
    4     
    4     
    4     6-5 Slam Try
    4NT     Blackwood
    5     To Play
   3      10-11pts
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4NT     Blackwood
   3      10+ HCP
   3      Limit raise
   3NT      To Play
   4      
   4      
   4      Single suited 13-17 HCP
   4      12-17pts No slam Interest
   4NT      Blackwood
  1NT       15-16 balanced
   2      5+ 4+ no fit unbalanced 6-8pts
   2      4+ 4+ weak hand likely unbalanced
   2      6-7pts weak normally 6+ may be 5
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      Strong Reverse 16+HCPs
   3      Limit Raise 10-11pts
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Strong hand 6+
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       weak hand 11-14 5+
   2      6-9pts 5+
    2     5+-3 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     11-14 pts
    3     5+ -4+ Inv to 3NT not likely to hold Stop
    3     5+ 3 17-18pts inv to 3NT/4
    3     4th suit forcing strong hand
    3NT     19points stopped
    4NT     Blackwood
   2      6-9pts
    2     6 4+ stop unlikely
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     6 5 good hand no stop likely
    3     Inv to 3NT / 4
    3     Stopper showing asking for stop
    3NT     To Play
    4     6+ strong hand
   2      4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     5+-5 shape hand no stop
    3     6-4+ shape no Spade stop no 3 card support for
    3     3 min 11-14 hand
    3     3 not 3 s likely stopped
    3NT     15+HCP 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-12pts mild game try
   3      Game Try showing doubt about stop
   3      12+ HCP Game try
   3      Stopper showing
   3NT      13-15 HCP
   4NT      Blackwood
  2       12-14 Unbalanced no 4 card major
   2      6-9pts
   2      Strong Reverse 16+HCP
    3     Fourth Suit Forcing
   2NT      6-9 Bal 4th suit Stopped
   3      Strong Reverse 16+HCP
   3      12+HCP unlikely to have stop
   3      Strong hand 6+
   3       Stop asking about stop for NT
   3NT      To play
   4      
   4      
   4      
   4      
   4NT      Blackwood
  2       11-14
   2      Long Suit Game try
   2NT      Bal 11-12 inv. to 3NT/4
   3      Long Suit game try
   3      Long Suit game-try
   3      11-12pts typically
   3      
   3NT      To play
   4      
   4      
   4      
   4NT      Blackwood
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       16+HCP No 4 card major
  3       16-17pts 4+ 4+
  3       Stopper showing concern about
  3NT       19HCP Balanced
  4NT       Blackwood
 1        6+ HCP typically
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      Strong Reverse 16+ pts
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Stopper Showing - expressing doubt about
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       No 4 Card major weak hand 11-14
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      Strong Reverse 16+ pts
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  2       11-14HCP unbalanced
  2       17+HCP
  2       Min hand
  2NT       17-18pts balanced no 4 card major
  3       Reverse 5+ 16+ HCP
  3       16+HCP
  3       Stopper showing concern about s
  3       15-16pts
  3NT       19HCP Balanced
  4NT       Blackwood
 1NT        6-9 Balanced no 4 Card Major
  2       No 4 Card major weak hand 5+ 11-14
  2       11-14 pts
  2       Strong Jump Shift 17+HCP
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       Invitational to 3NT shows 16+HCP long suit
  3NT       19HCP Balanced
 2        9+ HCP
 2        6-9pts no 4 card major
  2NT       
 2        Strong Jump Shift 16+HCP
 2        Strong Jump Shift 16+HCP
 2NT        11-12pts balanced no 4 card major
 3        Strong Jump Shift 16+HCP
 3        10-11pts No 4 card major
  3       Asking for stop for 3NT
  3       Asking for stop for 3NT
  3NT       To play 15-19 bal
 3NT        13-15pts balanced
 4NT        Blackwood

1          11-19* Rule of 20 applies
 1        6+ HCP typically
  1NT       15-16 balanced
   2      6-7pts
    2     
    2NT     
   2      6-7pts
    2     
   2      Weak raise 6-9pts unbalanced
    2     
   2      5+ likely 6 weak hand
   2NT      8-9pts
    3     
    3NT     
   3      13+HCP likely 5+/4+
    3     
    3NT     
    4     
    4     
   3      13+HCP likely 5+/4+
    3     
    3NT     To play
   3      3+ forcing to 3NT/4
   3      Long Spade suit 12+HCPs
   3NT      To Play
   4      
   4      
   4      
   4      One suited hand to play
   4NT      Blackwood
  2       5+ 4+ weak hand 11/12-14
   2      Fourth Suit Forcing
    2     6-5 shape min hand
    2     Min hand
    2NT      stopped min hand 11-14 pts
    3     No stop 5-5 shape or better
    3     5422 hand no stop no 3s
    3     6-5 or better shape good hand
    3     3 max hand 14/15 pts
    3NT     14pts s stopped
   2      Preference
    2     
    3     14HCPs 6-5 Shape inv to 4 forcing to 3
    3     Inv to 4 extra shape
    3     Inv to 4/4 likely singleton/void
    4     6+ strong hand
   2      No tolerance for /
    2NT     4th Suit stopped Min hand
    3     Min HCP hand 5-5 or better
    3     6-4 shape or better
    3     
    3NT     
   2NT      11-12pts balanced
    3     5-5 no tolerance and shortage
    3     
    3     
    3NT     To Play
   3      Looking for 3NT if max and with stop
    3     FSF max hand but no stop
    3     6-5hand looking for or game
    3     Max hand 3 no stop
    3NT     Max hand s stopped
   3      10-12 HCP
   3      
   3NT      13-15 HCP
   4      1 was delayed Game Raise 13+HCP
   4NT      Blackwood
  2       5+ 4+ 11-14HCP unbalanced
   2      Preference
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      No tolerance for /
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      Fourth Suit forcing
    3     FSF max hand but no stop
    3     6-5hand looking for or game
    3     Max hand 3 no stop
    3NT     Max hand s stopped
   3      Looking for 3NT or 5D if max denies stop
   3      10-12 HCP
   3      
   3NT      13-15 HCP
   4      To Play 13+HCP 1 was delayed game raise
   4      
   4NT      Blackwood
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       5+ 4+ weak hand
  2NT       17-18pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Strong suit 16+ HCP
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       16+HCP semi-forcing
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP semi-forcing
  3       5+ 4+ Inv to 4/4
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3NT       19HCP Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 1NT        6-9 Balanced no 4 Card Major
  2       weak hand 11-14
  2       weak hand 11-14
  2       weak hand 11-14
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced
  3       Strong suit 16+ HCP
  3       Strong suit 16+ HCP
  3       
  3NT       19HCP Balanced
 2        9+ Unbalanced
  2       5+ 4+ 11-14HCP unbalanced
   2      Preference
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      No tolerance for /
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      Fourth Suit forcing
    3     FSF max hand but no stop
    3     6-5hand looking for or game
    3     Max hand 3 no stop
    3NT     Max hand s stopped
   3      Looking for 3NT or 5D if max denies stop
   3      10-12 HCP
   3      
   3NT      13-15 HCP
   4      To Play 13+HCP 1 was delayed game raise
   4      
   4NT      Blackwood
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       Strong Reverse 16+ 5+s
  2NT       17-18pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Invitational looking for / or 3NT 5+s
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       16+HCP
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP semi-forcing
  3NT       19HCP Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 2        9+HCP
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       Strong Reverse 16+
  2NT       17-18pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Strong Reverse 16+HCP
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       Invitational looking for / or 3NT
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP
  3NT       19HCP Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 2        6-9pts
  2       Long Suit game-try
  2NT       17-18 4333 shape
  3       Long Suit game-try
  3       Long Suit game-try
  3       
  4       
 2        Strong Jump Shift 16+HCP
  2NT       15-16 bal not 4 spades
  3       Weak hand 5+/4+ not 4
  3       Weak hand 5+/4+ not 4
  3       Weak hand6+ no 4+/ not 4
  3       Strong hand (slow arrival)
  3NT       17/18 balanced
 2NT        11-12pts balanced no 4 card major
  3       Weak hand 5+/4+
  3       Weak hand 5+/4+
  3       
  3NT       
  4       
  4NT       Blackwood
 3        Strong Jump Shift 16+HCP
 3        Strong Jump Shift 16+HCP
 3        10-11pts Invitational
  4       
  4NT       Blackwood
 3NT        13-15pts balanced
 4NT        Blackwood

1          11-19* Rule of 20 applies
 1NT        6-9 Balanced no 4 Card Major
  2       weak hand 11-14
  2       weak hand 11-14
  2       weak hand 11-14
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced
  3       Strong suit 16+ HCP
  3       Strong suit 16+ HCP
  3       
  3NT       19HCP Balanced
 2        9+ Unbalanced
  2       5+ 4+ 11-14HCP unbalanced
   2      Preference
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      No tolerance for /
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      Fourth Suit forcing
    3     FSF max hand but no stop
    3     6-5hand looking for or game
    3     Max hand 3 no stop
    3NT     Max hand s stopped
   3      Looking for 3NT or 5D if max denies stop
   3      10-12 HCP
   3      
   3NT      13-15 HCP
   4      To Play 13+HCP 1 was delayed game raise
   4      
   4NT      Blackwood
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       Weak hand 11-14/15 5+ not 4/4
  2NT       15-16pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Weak hand
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       16+HCP
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP semi-forcing
  3       
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3NT       17-18 Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 2        9+HCP
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       Weak 11-14 5+
  2NT       17-18pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Strong Reverse 16+HCP
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       Invitational looking for / or 3NT
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP
  3NT       19HCP Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 2        9+pts
  2       Weak Hand
  2NT       15-16 Balanced
  3       Reverse 5+ 4+s 16+HCP
  3       Reverse 5+ 4+s 16+HCP
  3       5+ 4+s
  3       Strong hand
  3NT       17/18 HCP to play unless v.strong
  4       
 2        6-9pts
  2NT       15-16 bal not 4 spades
  3       Long Suit Game try
  3       Long Suit Game try
  3       Long Suit Game try
  3       
  3NT       17/18 balanced
  4       
  4NT       Blackwood
 2NT        11-12pts balanced no 4 card major
  3       Weak hand 5+/4+
  3       Weak hand 5+/4+
  3       
  3NT       
  4       
  4NT       Blackwood
 3        Strong Jump Shift 16+HCP
 3NT        13-15pts balanced
 4NT        Blackwood

1NT          12-14 balanced 4333,4432,5m332
 2        Stayman
  2       No 4 Card Major
   2      5 4 <13pts to play
   2      5 4 <13pts to play
   2NT      No Fit found Inv to 3NT
   3      weak implies a 4 card major
   3      6+ Diamonds implies a 4 card major
   3NT      
   4NT      Quantatative
  2       May have 4
   2NT      No Fit found Inv to 3NT
   3      weak implies a 4 card major
   3      6+ Diamonds implies a 4 card major
   3NT      To play likely to have 4s
   4NT      Quantatative
  2       Not 4
   2NT      No Fit found Inv to 3NT
   3      weak implies a 4 card major
   3      6+ Diamonds implies a 4 card major
   3NT      To play likely to have 4s
   4NT      Quantatative
 2        TFR to
  2       
   2      5 4 11+HCP forcing to 2NT
   2NT      5s 11-poor 12 inv to 3,3NT,4
    3     
    3NT     
    4     
   3      Forcing to 3
    3     2s forcing
    3     No fit minimum hand
    3     4 only 2s
    3NT     Non-minimum values in unbid suits 2s
    4     4s,4s better than min
  3       Shows a maximum hand with doubleton somewhere
 2        TFR to
 2        11-12 Bal no interest in / game may have 4CM if 4333.
 2NT        
 3        
  3       No fit for s
  3       No fit for s
  3       No fit for s
  3NT       No fit for s
  4       No other feature to show no o/s ace
  4       A fit for s
  4       A fit for s no A
  4       A fit for s no A or A
 3        
  3       No fit for s
  3       No fit for s
  3NT       No fit for s
  4        fit A
  4       s No o/s ace to show
  4       A fit for s no A
  4       A fit for s no A or A
 3        
  3       No fit for s
  3NT       No fit for s
  4       A fit 3+
  4       A fit 3+
  4        fit for s no o/s ace
  4       A fit 3+ no A /
 3        
 3NT        13-18 to play
 4NT        Quantative 19-20pts
 5NT        Invite to 7NT forcing to 6NT 23-24HCP
 6NT        21-22 HCP to play
 7NT        To play

2          Strong Game Force 23+ HCP
 2        Negative
  2       
  2       
  2NT       20-22 Balanced 4432,4333,5332 ( may include 5 card major)
   3      Stayman
    3     No 4 Card Major
     3    Implies 4s
      3NT   
      4   
     3    Implies 4s
     3NT    Implies a 4 card major
     4    
     4    
    3     4+s
     3NT    
     4    
    3     4+s
     3NT    
     4    
   3      
   3      
   3NT      
   4NT      Quantatative
   5NT      Grand Slam try
  3       
  3       
  3NT       25+ Balanced
 2        8+pts 5+ good suit
 2        8+pts 5+ good suit
 2NT        8+ Balanced - Systems on
 3        8+pts 5+ good suit
 3        8+pts 5+ good suit
 3        Solid Suit
 3        Solid Suit
 4        Solid Suit
 4        Solid Suit

2          8 Playing tricks meets rule of 23 (HCP + Length of 2 longest suits)
 2        Suit as good as AQxxx 8+pts
 2        Suit as good as AQxxx 8+pts
 2NT        Negative 0-7pts
 3        Suit as good as AQxxx 8+pts
 3        At least one A or good trumps
 3        
 3NT        To Play
 4        At least one A or good trumps
 4        Denies an A but useful features o/s K or Singleton

2          8 Playing tricks meets rule of 23 (HCP + Length of 2 longest suits)
 2        Suit as good as AQxxx 8+pts
 2NT        Negative 0-7pts
 3        Suit as good as AQxxx 8+pts
 3        At least one A or good trumps
 3        At least one A or good trumps
 3        
 3NT        To Play
 4        At least one A or good trumps
 4        

2          8 Playing tricks meets rule of 23 (HCP + Length of 2 longest suits)
 2NT        Negative 0-7pts
 3        Suit as good as AQxxx 8+pts
 3        Suit as good as AQxxx 8+pts
 3        Suit as good as AQxxx 8+pts
 3        At least one ace or good trump support
 3NT        To Play
 4        
 4        
 4        
 4        
 4NT        Blackwood

2NT          20-22 Balanced 4432,4333,5332 ( may include 5 card major)
 3        Stayman
  3       No 4 Card Major
   3      Implies 4s
    3NT     
    4     
   3      Implies 4s
   3NT      Implies a 4 card major
   4      
   4      
  3       4+s
   3NT      
   4      
  3       4+s
   3NT      
   4      
 3        
 3        
 3        Baron 10+HCP
  3NT       Minimum opening
  4       Maximum hand
  4       Maximum hand not 4 s
  4       Maximum hand not 4 card Minor only 4 if 4432 shape
  4       Maximum hand 4 if 4333 shape else 5 with no other 4 card suit
 3NT        
 4        
 4        
 4        
 4NT        Quantatative
 5NT        Grand Slam try

3          Pre-empt 6-10pts

3          Pre-empt 6-10pts

3          Pre-empt 6-10pts

3          Pre-empt 6-10pts

3NT          Gambling - solid Minor no o/s Aces/Kings

4          Pre-empt 6-10pts

4          Pre-empt 6-10pts

4          Pre-empt 6-10pts

4          Pre-empt 6-10pts

5          9+ weak to play
 5        9+ weak to play

5          9+ weak to play

5          9+ weak to play

Disturbed bidding
Bidding diagrams
1          11-19* Rule of 20 applies
 1        6+ HCP typically
  1       4+ 11*-19 pts any shape
   1      6+ HCP
    1NT     15-16 balanced
     2NT    
      3NT   To Play
     3NT    
     4NT    Blackwood
    2     5-4 or better min hand 11-14
     2    To play
     2    Fourth Suit Forcing
     2NT    
      3NT   To play
     3    
     3NT    
     4    
    2     Min hand 4441 shape or better
     2NT    
     3NT    
     4NT    Blackwood
    2     6-5 shape min hand
     2NT    
     3    
     3NT    
     4    
     4NT    Blackwood
    2     Min hand 4441 shape
     3    
     4    
     4    
     4    
     4    
     4NT    Blackwood
    2NT     17-18 balanced inv to 3NT
     3NT    
     4NT    Blackwood
    3     5-4-22 or better good hand
     3NT    
     4NT    Blackwood
    3     Showsd 4441 invitational to 3NT/5/5
     3    
     3NT    
     4    
     4    
     4    
     4NT    Blackwood
     5    
     5    
    3     6-5 or better shape good hand
     3    
     3NT    
     4    
     4    
     4    
     4NT    Blackwood
    3     4144 shape or better 15-18pts
     3NT    
     4    
     4    
     4    
     4    
     4NT    Blackwood
    3NT     19points
   1NT      6-9 HCP
    2     6-4 weak
     2    No fit
     2    Preference
    2     11-14
    2     6-5 weak hand
     2NT    
     3    Preference
     3    
     4    
    2     Fourth Suit forcing asking ptr to descride hand further
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     15-17pts shortage in
    3     6-5 15+ HCP
    3     Fourth Suit forcing
    3NT     19pts to play
   2      6-9 HCP Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9pts
    2     Fourth Suit forcing
    3     
   2      4TH Suit forcing -asks ptr for more information
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     6-5 shape no 4th suit stop
    3     Strong hand no stop in 4th suit
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2NT      11-12pts balanced
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  1       4+ 11*-19 pts any shape
   1NT      6-9 HCP
    2     6-4 weak
    2     11-14
    2     Fourth Suit Forcing
    2     6-5 Weak Hand
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     15-17pts shortage in
    3     Fourth Suit Forcing
    3     6-5 Good hand
    3NT     19pts to play
   2      6-9 HCP Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      4TH Suit forcing -asks ptr for more information
    2     6-5 shape min hand
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     6-5 shape no 4th suit stop
    3     Strong hand no stop in 4th suit
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2      6-9pts
    3     Long Suit game try
    3     17-18pts
    3NT     18-19 bal game choice
    4     
    4     
    4     
    4     
    4NT     Blackwood
   2NT      11-12pts balanced
    3NT     
    4NT     Blackwood
   3      10-11pts
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4     
    4     
    4     
    4     6-5 Slam Try
    4NT     Blackwood
    5     To Play
   3      No support for ptr 12+HCP
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4NT     Blackwood
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      Strong Reverse 16+ pts
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Stopper Showing - expressing doubt about
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       No 4 Card major weak hand 11-14
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      Strong Reverse 16+ pts
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  2       11-14HCP unbalanced
  2       17+HCP strong jump shift
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP semi - forcing
  3       4 Card Support 16+HCP semi - forcing
   3      Asking for stop for 3NT
   3      Asking for stop for 3NT
   3NT      
  3       Stopper showing concern about spades
  3       Stopper showing concern about hearts
  3NT       19HCP Balanced
  4NT       Blackwood
 1        6+ HCP typically
  1       4+ 11*-19 pts any shape
   1NT      6-9 HCP
    2     6-4 weak
    2     4th Suit Forcing
    2     3 card preference weak hand 11-14
    2     6-5 Weak Hand
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     Fourth Suit Forcing
    3     Invitational to 3NT/4
    3     6-5 Good hand
    3NT     18-19pts to play
   2      6-9 HCP Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      4th Suit Forcing
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9
    2     6-5 shape min hand
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand no stop in 4th suit
    3     6-5 Good hand
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2      6-9pts
    3     Long Suit game try
    3     17-18pts
    3NT     18-19 bal game choice
    4     
    4     
    4     
    4     
    4NT     Blackwood
   2NT      11-12pts balanced
    3NT     
    4NT     Blackwood
   3      10-11pts
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4     
    4     
    4     
    4     6-5 Slam Try
    4NT     Blackwood
    5     To Play
   3      4th Suit Forcing
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4NT     Blackwood
   3      10-12 HCP
   3      Limit raise
   3NT      13-15 HCP
   4      
   4      
   4      Single suited 13-17 HCP
   4      12-17pts
   4NT      Blackwood
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      6-9
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      Strong Reverse 16+HCP
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Strong hand 6+
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       weak hand 11-14
   2      6-9pts 5+
    2     5+-3 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     11-14 pts
    3     5+ -4+ Inv to 3NT not likely to hold Stop
    3     5+ 3 17-18pts inv to 3NT/4
    3     4th suit forcing strong hand
    3NT     19points stopped
    4NT     Blackwood
   2      6-9pts
    2     6 4+ stop unlikely
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     6 5 good hand no stop likely
    3     Inv to 3NT / 4
    3     Stopper showing asking for stop
    3NT     To Play
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     4th Suit Forcing
    3     3 min 11-14 hand
    3     3 not 3 s likely stopped
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-12pts mild game try
   3      Strong Reverse 16+HCP 5+
   3      10-12 HCP
   3      Stopper showing
   3NT      13-15 HCP
   4NT      Blackwood
  2       17+ unbalanced
   2      6-9pts
   2      4th Suit Forcing
   2NT      6-9 Bal 4th suit Stopped
   3      6-7pts
   3      6-7pts
   3      10+pts
   3      
   3NT      To play
   4      
   4      
   4      
   4      
   4NT      Blackwood
  2       11-14
   2      Long Suit Game try
   2NT      Bal 11-12 inv. to 3NT/4
   3      Game try - secondary fit
   3      Long Suit game-try
   3      11-12pts typically
   3      
   3NT      To play
   4      
   4      
   4      
   4NT      Blackwood
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       Strong Jump Shift 17+HCP
  3       16-17pts 4+ 4+
  3       Stopper showing concern about diamonds
  3NT       19HCP Balanced
  4NT       Blackwood
 1        6+ HCP typically
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      Strong Reverse 16+ pts
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Stopper Showing - expressing doubt about
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       No 4 Card major weak hand 11-14
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      Strong Reverse 16+ pts
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  2       11-14HCP unbalanced
  2       17+HCP
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       4 Card Support 16+HCP
  3       Stopper showing concern about spades
  3       Stopper showing concern about hearts
  3NT       19HCP Balanced
  4NT       Blackwood
 1NT        6-9 Balanced no 4 Card Major
  2       No 4 Card major weak hand 11-14
  2       Strong Jump Shift 17+HCP
  2       Strong Jump Shift 17+HCP
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3NT       19HCP Balanced
 2        6-9 Unbalanced
 2        Strong Jump Shift 16+HCP
 2        Strong Jump Shift 16+HCP
 2        Strong Jump Shift 16+HCP
 2NT        11-12pts balanced no 4 card major
 3        10-11 pts no 4 Card Major
  3       Asking for stop for 3NT
  3       Asking for stop for 3NT
  3       Asking for stop for 3NT
  3NT       To play 15-19 bal
 3NT        13-15pts balanced
 4NT        Blackwood

1          11-19* Rule of 20 applies
 1        6+ HCP typically
  1       4+ 11*-19 pts any shape
   1NT      6-9 HCP
    2     6-4 weak
    2     4th Suit Forcing
    2     3 card preference weak hand 11-14
    2     6-5 Weak Hand
    2NT     17-18 bal
    3     6-4 or better 15+HCP
    3     Fourth Suit Forcing
    3     Invitational to 3NT/4
    3     6-5 Good hand
    3NT     18-19pts to play
   2      4th Suit Forcing
    2     3 min hand
    2     6-5 Min Hand
    2NT      stop 11-14 pts
    3     Shortage in s likey 4-0-5-4 shape
    3     6-4 or better 15+pts no stop
    3     3 good hand
    3     6-5 Good hand 15+HCP
    3NT     15-16 stop
   2      6-9pts Preference
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      6-9 pts
    2     6-5 shape min hand
    2NT     4th Suit stopped Min hand
    3     6+-4+ shape Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand no stop in 4th suit
    3     6-5 Good hand
    3NT     15-16 4th suit stopped
    4     6-4 or better shape No 4th suit stop strong hand
   2      6-9pts
    3     Long Suit game try
    3     17-18pts
    3NT     18-19 bal game choice
    4     
    4     
    4     
    4     
    4NT     Blackwood
   2NT      11-12pts balanced
    3NT     
    4NT     Blackwood
   3      Fourth Suit Forcing
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4     
    4     
    4     
    4     6-5 Slam Try
    4NT     Blackwood
    5     To Play
   3      10-11pts
    3     Fourth Suit Forcing
    3     6-5
    3NT     To play
    4NT     Blackwood
   3      10+ HCP
   3      Limit raise
   3NT      To Play
   4      
   4      
   4      Single suited 13-17 HCP
   4      12-17pts No slam Interest
   4NT      Blackwood
  1NT       15-16 balanced
   2      5+ 4+ no fit unbalanced 6-8pts
   2      4+ 4+ weak hand likely unbalanced
   2      6-7pts weak normally 6+ may be 5
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      Strong Reverse 16+HCPs
   3      Limit Raise 10-11pts
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Strong hand 6+
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       weak hand 11-14 5+
   2      6-9pts 5+
    2     5+-3 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     11-14 pts
    3     5+ -4+ Inv to 3NT not likely to hold Stop
    3     5+ 3 17-18pts inv to 3NT/4
    3     4th suit forcing strong hand
    3NT     19points stopped
    4NT     Blackwood
   2      6-9pts
    2     6 4+ stop unlikely
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     6 5 good hand no stop likely
    3     Inv to 3NT / 4
    3     Stopper showing asking for stop
    3NT     To Play
    4     6+ strong hand
   2      4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     5+-5 shape hand no stop
    3     6-4+ shape no Spade stop no 3 card support for
    3     3 min 11-14 hand
    3     3 not 3 s likely stopped
    3NT     15+HCP 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-12pts mild game try
   3      Game Try showing doubt about stop
   3      12+ HCP Game try
   3      Stopper showing
   3NT      13-15 HCP
   4NT      Blackwood
  2       12-14 Unbalanced no 4 card major
   2      6-9pts
   2      Strong Reverse 16+HCP
    3     Fourth Suit Forcing
   2NT      6-9 Bal 4th suit Stopped
   3      Strong Reverse 16+HCP
   3      12+HCP unlikely to have stop
   3      Strong hand 6+
   3       Stop asking about stop for NT
   3NT      To play
   4      
   4      
   4      
   4      
   4NT      Blackwood
  2       11-14
   2      Long Suit Game try
   2NT      Bal 11-12 inv. to 3NT/4
   3      Long Suit game try
   3      Long Suit game-try
   3      11-12pts typically
   3      
   3NT      To play
   4      
   4      
   4      
   4NT      Blackwood
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       16+HCP No 4 card major
  3       16-17pts 4+ 4+
  3       Stopper showing concern about
  3NT       19HCP Balanced
  4NT       Blackwood
 1        6+ HCP typically
  1NT       15-16 balanced
   2      6-7pts
   2      6-7pts
   2      Strong Reverse 16+ pts
   2      Strong Reverse 16+ pts
   2NT      8-9pts
   3      10-11pts
   3      
    3     Stopper Showing - expressing doubt about
    3     Stopper Showing - expressing doubt about
    3NT     To play
   3      Stopper Showing - expressing doubt about
   3      Stopper Showing - expressing doubt about
   3NT      To Play
   4NT      Blackwood
  2       No 4 Card major weak hand 11-14
   2      6-9pts
    2     6-5 shape min hand
    2     4th suit forcing asking for spade stop
    2NT     17-18 balanced inv to 3NT
    3     Invitational to 5
    3     Showsd 4441 invitational to 3NT/5/5
    3     6-5 or better shape good hand
    3     4th suit forcing
    3NT     19points stopped
   2      Strong Reverse 16+ pts
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      Strong Reverse 16+ pts
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      10-11pts
   3      No support for ptr 12+HCP
   3      10-12 HCP
   3      13+ HCP 4th Suit Forcing
   3NT      13-15 HCP
   4NT      Blackwood
  2       11-14HCP unbalanced
  2       17+HCP
  2       Min hand
  2NT       17-18pts balanced no 4 card major
  3       Reverse 5+ 16+ HCP
  3       16+HCP
  3       Stopper showing concern about s
  3       15-16pts
  3NT       19HCP Balanced
  4NT       Blackwood
 1NT        6-9 Balanced no 4 Card Major
  2       No 4 Card major weak hand 5+ 11-14
  2       11-14 pts
  2       Strong Jump Shift 17+HCP
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced no 4 card major
  3       Strong suit 16+ HCP
  3       Invitational to 3NT shows 16+HCP long suit
  3NT       19HCP Balanced
 2        9+ HCP
 2        6-9pts no 4 card major
  2NT       
 2        Strong Jump Shift 16+HCP
 2        Strong Jump Shift 16+HCP
 2NT        11-12pts balanced no 4 card major
 3        Strong Jump Shift 16+HCP
 3        10-11pts No 4 card major
  3       Asking for stop for 3NT
  3       Asking for stop for 3NT
  3NT       To play 15-19 bal
 3NT        13-15pts balanced
 4NT        Blackwood

1          11-19* Rule of 20 applies
 1        6+ HCP typically
  1NT       15-16 balanced
   2      6-7pts
    2     
    2NT     
   2      6-7pts
    2     
   2      Weak raise 6-9pts unbalanced
    2     
   2      5+ likely 6 weak hand
   2NT      8-9pts
    3     
    3NT     
   3      13+HCP likely 5+/4+
    3     
    3NT     
    4     
    4     
   3      13+HCP likely 5+/4+
    3     
    3NT     To play
   3      3+ forcing to 3NT/4
   3      Long Spade suit 12+HCPs
   3NT      To Play
   4      
   4      
   4      
   4      One suited hand to play
   4NT      Blackwood
  2       5+ 4+ weak hand 11/12-14
   2      Fourth Suit Forcing
    2     6-5 shape min hand
    2     Min hand
    2NT      stopped min hand 11-14 pts
    3     No stop 5-5 shape or better
    3     5422 hand no stop no 3s
    3     6-5 or better shape good hand
    3     3 max hand 14/15 pts
    3NT     14pts s stopped
   2      Preference
    2     
    3     14HCPs 6-5 Shape inv to 4 forcing to 3
    3     Inv to 4 extra shape
    3     Inv to 4/4 likely singleton/void
    4     6+ strong hand
   2      No tolerance for /
    2NT     4th Suit stopped Min hand
    3     Min HCP hand 5-5 or better
    3     6-4 shape or better
    3     
    3NT     
   2NT      11-12pts balanced
    3     5-5 no tolerance and shortage
    3     
    3     
    3NT     To Play
   3      Looking for 3NT if max and with stop
    3     FSF max hand but no stop
    3     6-5hand looking for or game
    3     Max hand 3 no stop
    3NT     Max hand s stopped
   3      10-12 HCP
   3      
   3NT      13-15 HCP
   4      1 was delayed Game Raise 13+HCP
   4NT      Blackwood
  2       5+ 4+ 11-14HCP unbalanced
   2      Preference
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      No tolerance for /
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      Fourth Suit forcing
    3     FSF max hand but no stop
    3     6-5hand looking for or game
    3     Max hand 3 no stop
    3NT     Max hand s stopped
   3      Looking for 3NT or 5D if max denies stop
   3      10-12 HCP
   3      
   3NT      13-15 HCP
   4      To Play 13+HCP 1 was delayed game raise
   4      
   4NT      Blackwood
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       5+ 4+ weak hand
  2NT       17-18pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Strong suit 16+ HCP
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       16+HCP semi-forcing
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP semi-forcing
  3       5+ 4+ Inv to 4/4
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3NT       19HCP Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 1NT        6-9 Balanced no 4 Card Major
  2       weak hand 11-14
  2       weak hand 11-14
  2       weak hand 11-14
  2       Strong Jump Shift 17+HCP
  2NT       17-18pts balanced
  3       Strong suit 16+ HCP
  3       Strong suit 16+ HCP
  3       
  3NT       19HCP Balanced
 2        9+ Unbalanced
  2       5+ 4+ 11-14HCP unbalanced
   2      Preference
    2     4th Suit Forcing
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Strong hand inviting slam try
    3     Strong hand no stop in 4th suit
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2      No tolerance for /
    2NT     4th Suit stopped Min hand
    3     Min HCP hand
    3     No 4th Suit stop for NT 3+ support openers suit Min hand
    3     Fourth Suit Forcing
    3     Strong hand inviting Slam try
    3NT     11-14 4th suit stopped
    4     6+ strong hand
   2NT      11-12pts balanced
    3     11-14
    3NT     To Play
   3      Fourth Suit forcing
    3     FSF max hand but no stop
    3     6-5hand looking for or game
    3     Max hand 3 no stop
    3NT     Max hand s stopped
   3      Looking for 3NT or 5D if max denies stop
   3      10-12 HCP
   3      
   3NT      13-15 HCP
   4      To Play 13+HCP 1 was delayed game raise
   4      
   4NT      Blackwood
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       Strong Reverse 16+ 5+s
  2NT       17-18pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Invitational looking for / or 3NT 5+s
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       16+HCP
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP semi-forcing
  3NT       19HCP Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 2        9+HCP
  2       Weak hand no 4 card minor
   2      0 or 1 weak hand
   2NT      Inv to 3NT
   3      5+ 4+ 13+HCP
   3      5+ 4+ 13+HCP
   3      
   3      Semi Forcing 12-13pt hand no support
   3NT      TO PLAY
  2       Strong Reverse 16+
  2NT       17-18pts balanced
   3      
   3      
   3NT      
   4NT      Blackwood
  3       Strong Reverse 16+HCP
   3      fourth suit forcing
   3      
   3      
   3NT      
   4      
   4      
  3       Invitational looking for / or 3NT
   3      
   3      
   3NT      
   4      
   4      
   4      
   4      
   4NT      Blackwood
  3       16+HCP
  3NT       19HCP Balanced to play
  4       
  4       
  4       Strong one-suited hand 18-19pts
  4       5+ 4+ 18-19pts
  4NT       Blackwood
 2        6-9pts
  2       Long Suit game-try
  2NT       17-18 4333 shape
  3       Long Suit game-try
  3       Long Suit game-try
  3       
  4