Convention Card [Reverse]

OTHER OPENING BIDS

	HCP	see Note	Min length	CONVENTIONAL MEANING	SPECIAL RESPONSES		Notes
1♣	9+	¨	3		Splinters.	2NT natural Inverted minors	1.1 1.2
1♦	9+	¨	4			2NT natural Inverted minors	1.1 1.2
1♥	9+	¨	4			Jacoby 2NT	1.1 1.3
1♠	9+	¨	5			Jacoby 2NT	1.1 1.3
3 bids	0+	¨	6	3NT = solid minor
4 bids	0+	¨	7

DEFENSIVE METHODS AFTER OPPONENTS OPEN
Opponents Open A Natural One of a Suit		CONVENTIONAL MEANING	SPECIAL RESPONSES	Notes
Simple overcall		Usually 5+ cards
Jump overcall		Pre-emptive
Cue bid		Michaels		1.4
1NT	Direct	15-18	As 1NT
1NT	Protective	11-14	As 1NT
2NT	Direct	2 lowest unbid suits, weak/strong
2NT	Protective	20-22	As opening 2NT
Opponents Open With		DEFENSIVE METHODS	SPECIAL RESPONSES	Notes
Strong 1♣
Short 1♣/1♦		Treat as natural
Weak and Strong 1NT		Modified Landy; 2♣=both majors,	2♦=equal length	1.5
Weak 2		Dbl for take-out; 2NT=16-18 bal. 4♣/♦ Leaping Michaels.	Lebensohl	1.6
Weak 3		Dbl for take-out
4 bids		Dbl for take-out
Multi 2♦		Dbl: 13-15 or 19+; 2NT=16-18	Lebensohl	1.6

SLAM CONVENTIONS
Name	Meaning of Responses	Action over interference
Roman Key Card Blackwood	5♣=1/4, 5♦=0/3, 5♥/♠=2/5 without/with trump queen. 5NT asks for lowest side-suit king	Dbl=0/3, pass=1/4, etc
Minor/major-suit RKCB	4♣/♦ agrees/sets the bid suit as the trump suit, and is RKCB. Either bid may be made in response to an opening 1NT/2NT. 1NT - 4♥/♠ is also RKCB.

COMPETITIVE AUCTIONS
Agreements after opening of one of a suit and overcall by opponents:
Level to which negative doubles apply	3♠
Special meaning of bids	2NT=natural, cue-bid=Jacoby
Exceptions/other agreements

Agreements after opponents double for takeout

Redouble	10+	New suit	Forcing	Jump in new suit	Pre-emptive
Jump raise	Pre-emptive	2NT	Good raise	Other

Other agreements concerning doubles and redoubles:

Doubles are for take-out unless: we have a fit; we have pre-empted; we are doubling a naturally-bid NT.

After penalty double of 1NT, next double by either player is take-out.

If opponents make a 2-suited overcall, cue-bidding their lower or only known suit shows support for partner's opening suit, cue-bidding their higher suit if known shows 5+ in the fourth suit.

OTHER CONVENTIONS

Fourth-suit forcing [1♠ is natural]

After 1X-2Y, 2NT is game-forcing [3♣ requests more information], 3NT = flat 15/16

Unassuming cue-bids (show good raise of partner's suit or very strong hand). Other responses to partner's overcalls are non-forcing

Directional asking bids

1NT rebid is 15-17 [2♣ is checkback], 2NT rebid is 18-19 [3♣ is checkback]

Long-suit trial bids

SUPPLEMENTARY DETAILS [1]
(Please cross-reference where appropriate to the relevant part of the card and continue on back if needed)
1.1	Splinter jump shows support for partner [min 4] with typically singleton in bid suit. A splinter bid can be an immediate response, opener's rebid, or an unnecessary [to be forcing] bid at any stage .
1.2	Raising 1-minor to 2-minor is unlimited force; raising 1-minor to 3-minor is pre-emptive. Both bids deny a 4-card major. Doesn't apply in competitive auction.
1.3	Jacoby 2NT promises 4+ trump support and is forcing to game. Opener rebids 4-major if minimum. 3-new-suit as trial bid, 4-new-suit as splinter.
1.4	Minor-suit cue-bid shows at least 5-5 in the majors. Major-suit cue-bid shows at least 5-5 in other major + unspecified minor. Usually weak/strong, not intermediate [i.e. not in range 11-15]
1.5	2♣=both majors, 2♦=4-card major plus longer minor, 2-major=minimum 5-card suit
1.6	If partner doubles a weak 2-bid, 2NT shows a weak hand [<8] and requests a 3♣ relay. 4♣/♦ shows min 5-5 in suit bid and other major, and is game-forcing.