Bridge Conventions

BROZEL (Overcall opponents 1NT if you have distribution)

(1NT)	X			Relay to 2C. You have a one suited hand.
	2C			You have C and H.
	2D			D and H.
	2H			H and S.
	2S			S and a minor.
	2NT			Both minors.

(1NT)	X		Pass	Partner wants to defend.

(1NT)	X		2C	Partner obeys.
	Pass			Your suit is C. You pass.
	2D			Your suit is D. You correct.

(1NT)	X		2D	Partner does not obey. He has excellent D.

(1NT)	2S		2NT	Partner wants to know which minor.

(1NT)	Pass	(Pass)	X	Brozel is used in balancing seat also.

CHECKBACK STAYMAN (When as responder you have 10+ HCP, 5 cards major and partner's second bid is 1NT)

1D		1H
1NT		2C			Asking opener if he has 3 cards H.

JACOBY 2NT (When partner has opened one of a major)

2NT

You show 4 card S support. Game force.

JACOBY TRANSFERS (To make the stronger hand declarer)

1NT	2D	Transfer to 2H. 0+ points.

1NT	2H	Transfer to 2S. 0+ points.

1NT	2D
2H		Automatic reply from partner.

1NT	2D
3H		Partner has opened max. and has 4 cards H support. You decide: Pass, 3NT or 4H.

1NT	2H	Transfer to 2S.
2S	Pass	5 cards S. 0-7 points,
	3S	5 cards S. 8-9 points. Partner will decide: Pass, 3NT or 4S.
	3NT	10-14 points, balanced hand.
	4S	6+ cards S. Signoff.

2NT	3D	Transfer to 3H. 0+ points.

2NT	3H	Transfer to 3S. 0+ points.

LEBENSOHL (When opponents have overcalled your partner's 1NT)

1NT	(2C)	X	For penalty. You have 8 HCP balanced hand.

1NT	(2C)	2H	Your 2H is natural. 5+ cards H. 0-6 HCP.

1NT	(2S)	3H	3H is natural and forcing. 10+ HCP.

1NT	(2H)	2NT	Relay to 3C. You have a one suited hand.

1NT	(2H)	2NT
3C		Pass	0-6 HCP, 6 pieces C.
		3D	3D is signoff. Weak hand. Has 5+ cards D.

1NT	(2H)	2NT
3C		3S	Inviting game in S (you could have bid 2S over 2H if you were weak).

1NT	(2H)	3H	Stayman. No H guard.

1NT	(2H)	2NT
3C		3H	Stayman. Showing H guard.

1NT	(2S)	2NT
3C		3NT	Showing S stopper.

1NT	(2S)	3NT	10-14 HCP. No 4 card major, no S stopper.

LEBENSOHL (Used over preempts also)

(2H)	X	2NT
	3C	3D	No 4 cards support for S. Has 5+ pieces D. Weak.

(2H)	X	3D	No 4 cards support for S. Has 5+ pieces D. 10+ HCP.

MICHAELS (Cue bid opponents natural opening if you have two long suits of similar quality)

(1C)	2C		Majors min. 5-5 (or 5-4).

(1D)	2D		Majors min. 5-5 (or 5-4).

(1H)	2H		S and a minor.

(1S)	2S		H and a minor.

(1S)	2S	2NT	Partner wants to know which minor (no H support).

REVERSE DRURY (When you support your partner's 3rd seat major opening with 10+ pts.)

Pass	(Pass)	1S	2C	You have 10-12 total points, 3+ cards S.

Pass	(Pass)	1S	2C
		2S		Partner has opened light.
		2D		He has a normal opening hand.
		2H		Normal opening hand. He also has 4+ cards H.

ROMAN KEY CARD BLACKWOOD (Keycards are the 4 aces and the trump king)

SPLINTER (Over partners major opening)

1H		4D			11+ total points, 4 card support, D void (or singleton).
		3S			11+ total points, 4 card support, S void (or singleton).

STAYMAN (Partner has opened 1NT and you have 4 card major(s) and 8+ HCP)

1NT	2C	Asking for 4 card majors.
2D		No 4 card major.
2H		4 H present (4 card S may also be present)
2S		4S present (no 4 card H)

1NT	2C
2D	2NT	Invitation to 3NT. You have a balanced hand with 8-9 HCP.

SUPPORT DOUBLE (Make use of opponents' intervention to show a 3 card support for partner's suit)

1H	1S	(2C)	Intervention with a suit.
X			3 cards S (you would have shown support with 4 cards).

1H	1S	(X)	Intervention with double.
XX			3 cards S (you would have shown support with 4 cards).

TEXAS TRANSFERS (With 6 card major and no slam interest)

UNUSUAL 2NT

(1C)

2NT

Two unbid lower ranking suits (here D and H).

WEAK JUMP SHIFT (Opponents butt in, and you have weak hand with a long suit)