1C/1D

13-21 HCP, 3+ Card Suit, No 5+ Card Major, (if 3-3 open 1C, if 4-4 open 1D)

1H/1S

13-21 HCP, 5+ Card Suit, (If 5-5 or 6-6 in majors, open 1S)

1NT

15-17 HCP, Balanced (no singletons or voids), no 5 card major

2C*

22+ HCP, or 9+ playing tricks (Strong 2C)

2D*

12-15 HCP, 4441 or 5440 distribution (Weak Roman 2D)

2H/2S

6-12 HCP, 6 Card Suit, Preemptive (Weak 2's)

2NT

20-21 HCP, Balanced (no singletons or voids), no 5 card major

3C/3D/3H/3S

6-12 HCP, 7+ Card Suit, no 4 card major or outside Ace (Preemptive)

3NT

15-21 HCP, Solid 7+ Card Minor, and 2-3 outside stoppers -- "Gambling"

4C/4D/4H/4S

6-12 HCP, 8+ Card Suit, no 4 card major or outside Ace (Preemptive)

4NT*

29+ HCP, Blackwood (Asks for Aces)

5C/5D

6-12 HCP, 9+ Card Suit, no 4 card major or outside Ace (Preemptive)

1C/1D/1H/1S

(13-21 HCP, 3+ Card Suit) (General responses)

Pass

0-5 HCP, no 6+ card suit

New Suit*

6+ HCP at 1 level or 10+ HCP at 2 level, 4+ Card suit (forcing 1 round)

1NT

6-9 HCP, no 4+ card suit between opener's suit and NT, no opener support

2 lvl jump-shift

2-5 HCP, 6+ Card suit (Weak Jump Shift, preemptive)

2NT*

13+ HCP, balanced, forcing to game, interest in slam (Unlimited 2NT)

3 lvl jump-shift

2-7 HCP, 7+ Card suit, except 1H-3S (Weak Jump Shift, preemptive)

4NT*

20+ HCP, known suit fit (Blackwood, asking for aces)

1C/1D

(13-21 HCP, 3+ Card Suit) (Specific Minor responses)

raise to 2C/2D*

10+ Points, 4+ card support, no 4+ card major (Inverted minor raise)

raise to 3C/3D

6-9 Points, 5+ card support, no 4+ card major (Weak jump minor raise)

3NT

13-16 HCP (or strong 12 HCP), balanced, no 4+ card major

1H/1S

(13-21 HCP, 5+ Card Suit) (Specific Major responses)

raise to 2H/2S

6-9 Points, 3+ card support (limit raise)

raise to 3H/3S

10-12 HCP, 3+ card support (Limit Major Raise, Invites to game)

3NT*

13-16 Points, balanced, 4+ card support for major (Forcing to game or slam)

dbl jump-shift*

13-16 Points, 4+ card support, shows a singleton or void (Splinter)

raise to 4H/4S

6-9 Points, 5+ card support, good distribution values (preemptive)

Pass

0-7 HCP and no good bail-out suit

2C*

8+ HCP, at least one 4 card major or one 5+ card minor (Stayman)

2D

No 4 card major

2H/2S

Shows 4 card major (2S denies four hearts)

4C*

16+ HCP, asks for Aces (Gerber)

2D/2H*

0+ HCP, good 5+ card major in next higher suit (Jacoby Transfer)

2H/2S

Opener must accept transfer to major suit (1NT-2D-2H, or 1NT-2H-2S)

Pass

0-7 HCP Weak hand, bail out in major suit

2S

8-9 HCP, 5-5 in majors, invitational to game (1NT-2D-2H-2S only)

2NT

8-9 HCP, Invitation to game with 5 card major

3C/3D*

10+ HCP, Shows 4+ card minor, forcing to game, slam interest

3H (2S)*

10+ HCP, 5-5 in majors, forcing to game, slam interest (1NT-2H-2S-3H)

Raise to 3

8-9 Points, 6+ card major suit, invitation to game

3NT

10-15 HCP, balanced with 5 card major (invites to 4 of major)

4 lvl suit*

16+ Points, shows singleton or void with 6+ card major suit (Splinter)

Raise to 4

16-18 Points, 6+ card major (Invites to look for slam)

4NT

16-18 HCP, 5 card major, balanced (Quantitative, invitation to slam)

3H/3S

17 HCP, 4 card support, 1-2 distribution points (strong acceptance)

Pass

0-6 Points

Raise

7-14 Points, no interest in slam

4C*

15+ Points, asks for Aces (Gerber)

2S*

8+ HCP, at least 5-4 in minors, interest in game (Minor-Suit Stayman)

2NT

15-16 HCP, Shows strength in both majors, could have minor-suit fit

3C/3D

4+ card minor suit, potentially weak majors

3H/3S

17 HCP, Stopper only in bid major, could have minor fit

3NT

17 HCP, Stopper in both majors

4C/4D

17 HCP, 4+ card minor suit, Aces in both majors

2NT

8-9 HCP, balanced (Invitation to game)

3C/3D/3H/3S*

10+ HCP, 3 suited hand, singleton or void in bid suit (Splinter response)

3NT

10-15 HCP, balanced, sign-off in game

4C*

16+ HCP, balanced, asks for aces (Gerber)

4D/4H*

10-15 Points, 6+ card major suit one higher (Texas Transfer)

4H/4S

Opener must accept transfer to major suit (e.g. 1NT-4D-4H, or 1NT-4H-4S)

4NT

16-18 HCP, balanced -- Opener bids 6NT with 17 HCP (Quantitative)

2D*

0-7 HCP, or 8+ HCP with no suitable bid (negative)

2H/2S/3C/3D*

5+ card suit, forcing one round (or 4 card major with 4441 distribution)

3C/3D*

0-3 HCP, lowest available 3-level minor (second negative response)

3NT

0-3 HCP, second negative response over 3D (only for 2C-2D-3D-3NT)

All others*

4-7 HCP, natural bid, forcing until game (see similar progression below)

2NT

22-24 HCP, balanced (Stayman, Jacoby, Texas xfer on -- See 2NT)

3NT

25-27 HCP, balanced (Stayman, Jacoby on -- See 2NT)

4NT/5NT

28-30 HCP, or 31-32 HCP, respectively, balanced

2H/2S/3C/3D*

8+ HCP (or 1.5+ honor tricks) with 5+ card suit headed by Q or better

New Suit*

4+ card suit, denies 3+ card support for major

Cheapest NT*

22-24 HCP, balanced (No Stayman or Jacoby)

Jump Shift*

Shows a singleton or void, 3+ card support for bid suit (Splinter)

4NT*

Asks for aces (Blackwood)

Raise 1*

3+ card support, minor denies 4 card major, interest in slam

New Suit*

Shows Ace or void, interest in slam (Cue bid)

Raise 1

Play at game level (4H/4S/5C/5D), no interest in slam

4NT*

Asks for aces (Blackwood)

Raise 2

Play at game level (4H/4S/5C/5D), no interest in slam

2NT*

8+ HCP, balanced, forcing to game

2H/2S/3C/3D

0-9 HCP, Next 4+ card suit, or good 3-card major (weak response)

Pass

4+ card support for suit

Next suit

Partner bid short suit -- correct to next suit

2NT*

10+ HCP, ask for short suit

3C/3D/3H/3S*

Shows short suit

3HS/4CD

10-12/13-15 HCP, Invitation to game

4HS/5CD

13-17/16-17 HCP, Final contract

4NT*

18+ HCP, asks for Aces (Blackwood)

2NT*

13+ HCP, possible trump support, asks for feature

3H/3S Rebid

6-9 HCP, minimum hand, no features

New Suit*

19+ HCP, 5+ card suit, forcing one round (see below for examples)

3 Lvl suit*

9-12 HCP, shows "feature" (A, K, or Q) in suit

3 Lvl Rebid

13-15 Points, Invitation to game with maximum

4 Lvl Rebid

16-20 Points, Sign-off in game

New Suit*

16+ HCP, 5+ card suit, forcing

Raise

3+ card support for suit, or good 2 card support with honors

Orig Suit

9-11 HCP, Poor support, minimum values

New Suit

11-12 HCP (Max hand), good side suit

3NT

11-12 HCP, no good side suits

3NT

9-12 HCP, trump suit headed by AKQ or AKJ

4C/4D

10-12 HCP, 4+ card minor suit headed by Q or better

Raise to 3H/3S

6-12 Points, good trump support (preemptive blocking maneuver)

New Suit

6-12 HCP, 6+ card suit, no support for opener's suit

Jump Shift

13-18 HCP, 6+ card suit natural bid, self sufficient, invitational to game

3NT

19-20 HCP, or solid 3NT, poor trump support, sign-off

4H/4S/5C/5D

19+ Points, sign-off in game, no slam interest

4NT*

Ask for Aces (Blackwood) (Better to start with 2NT)

Pass

0-4 HCP, no good major suit

3C*

5+ HCP, Ask for majors (Stayman, see 1NT)

3D/3H*

0+ HCP, 5+ card major, tells opener to bid next higher suit (Jacoby transfer)

3S*

10+ Points, at least 5-4 in minors, interest in slam (Minor-Suit Stayman)

3NT

5-11 HCP, balanced, sign-off in game

4C*

12+ HCP, Asks for Aces (Gerber)

4NT

12 HCP, Ask for point count -- opener bids 6NT with max (Quantitative)

Pass

No interest in slam

4C*

9+ HCP, at least one Ace and King (or 3 Ks), slam try (strong relay)

4D*

ask for aces (Gerber, 1 step higher)

4H/4S*

Shows an Ace in the given suit (Cue bid)

4NT/5C/5D

Rejects slam try, choose favorite game sign-off

4D*

9+ HCP, ask for aces (Gerber, 1 step higher)

4H/4S

7+ HCP, Good 6+ major, invitational to slam

4NT

11-13 HCP, no controls (i.e. no aces or voids), mild slam try

5C

5+ Points, 3+ cards in both minors, short major suit

5D

Opener's suit is diamonds (otherwise pass if clubs)