Cream of the Crop 11

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FORCING AND NON-FORCING SITUATIONS Responses to One of a Suit 1C 1NT 3S Not forcing, but distributionally strong and invitational. Responder's hand is not suitable for a double. 1H P 3H 1S P 3S 1D P 3D 1C P 3C Limit raises, invitational. 1C 1S 2NT Forcing, as if the overcall had not happened 1D/1H/1S 2C 2NT Not forcing. Non-jump responses of 2NT are invitational, showing 11-12 HCP and stopper(s) in the opposing suit. When negative doubles apply, with 13-15 HCP you make a negative double and then bid 3NT; an immediate 3NT response would show 16-18 HCP. 1H/1S P/Dbl 3NT Forcing, artificial raise. See THE 3NT RESPONSE TO A MAJOR OPENING. 1H 1S 3NT Forcing, artificial raise. Note the double jump. Single jumps to 3NT are natural bids. 1D 2C 2H/2S Not forcing ("negative free bid") if playing negative doubles. To force, double and then bid the major, or cue bid, or jump. 1H 3S 4C Forcing. New minor suit responses by an unpassed hand are forcing. 1S 2C/2D 4H A forcing splinter bid. See SPLINTER RESPONSES TO A MAJOR OPENING. Rebids by Opener 1S P 2D P 3S Not quite forcing. Responder can pass with a weak response and a singleton or void in spades. 1S P 2D P 3C Forcing, and promises another bid if responder bids 3D. 1S P 2H 3C 3D Also forcing, but does not promise another bid if responder bids 3H. Here the bidding has been crowded, and opener may have planned a 2S rebid over a 2H response with something like S-AK1074 H-Q3 D-AJ96 C-42. 1C 1D 1S P 2H Not forcing unless responder has five or more spades. He can pass with S-KJ32 H-7654 D-Q85 C-62. See REBIDS BY OPENER. 1H P 2C P 2S Forcing. Reverses are forcing on a two-over- one bidder, and promise another bid unless responder merely rebids her suit or returns to opener's first suit. 1H P 2H 3C 3D Not forcing. Opener must double to try for game. If the overcall had been at the two level, 3D would be a forcing game try. 1H P 2D P 2NT Not forcing, but with a long broken suit and a weak hand responder should bid 3D. 1D 2H 2S P 3C Forcing, even if 2S was not forcing. A 4C bid would have been a splinter. 1D 1H P P 3C Not forcing, highly invitational 1H 2D 2NT P 3C Normal force, not Stoplight (2NT not a jump) 1H P 2D P 4D Forcing. Jump raises of a two-over-one minor suit response are forcing to game. If respon- der now bids 4NT, that is a sign-off. 1H P 1S 2D 3C Not forcing, but strong 1C P 1S 2H 3D Forcing. Reverses at the three level are forc- ing, even after a one-over-one response. 1S 2H Dbl* 3C P * business A forcing pass. If the doubler is not enough to keep the ball rolling, she should not have doubled--no matter how many hearts she has. 1H Dbl Rdbl P 3H Not forcing, but the redoubler should pass only with a small singleton heart and a minimum redouble. Opener should bid 4H if able to make game opposite such a hand. 1C P 1H P 2C P 2S P 3H Not forcing. If opener has three small hearts and extra values, he must bid 4H (responder guarantees five in this sequence). A reverse by responder does not promise another bid if opener's next bid is discouraging. 1C P 1D P 1NT P 2S P 3S Forcing. Ruffing values in responder's hand ought to produce game even if opener has a minimum. A jump to 4S by opener would imply not only good spades but good clubs and a diamond fit. Can opener have good spades? Yes, because he is supposed to rebid 1NT with a 4-3-3-3 hand: S-KQ32 H-1087 D-Q32 C-AK3. See REBIDS BY OPENER. 1C P 1H P 1S P 3C P 3H Forcing, accepting the game try. Opener must pass 3C with S-AJ97 H-762 D-63 C-AQJ3. Exchange the H-7 for the H-Q and the 3H bid is okay.If this seems too aggressive, raise a 1H response to 2H instead of bidding 1S. 1H P 1S P 2S P 3C P 3H Not forcing. Shows five or six hearts and only three-card spade support. To accept the game try, opener must bid something else. 1C P 1H P 1NT P 2NT P 3H Forcing, accepting the game try and giving responder a choice of contracts. Rebids by Responder 1C P 1H P 1S P 3C/3H Not forcing. Bid 2D (Fourth Suit Artificial) if stuck for a good bid with a game-going hand. See chapter FOURTH SUIT ARTIFICIAL in the book "Marvin's Conventions and Treatments." 1H P 2C P 2D P 3H Not forcing, merely a heart raise. A bid of 2H would be a preference, not a raise. 1H P 1S P 1NT P 3S Forcing. After a 1NT rebid by opener, all three level jumps by an unpassed hand are forcing. Use Checkback Stayman (q.v.) with an invita- tional hand. 1D P 1H 1S P P 2C Not forcing. When opener refuses to make a free rebid, a new suit by responder is not forcing (reverses and jumps excepted). 1C P 1S P 1NT P 2H/2D Not forcing. A new suit by responder after opener's 1NT rebid is weak (barring reverses) 1C P 1S P 2C P 2H Not forcing. May be a stretch at match points, when you can't risk missing a heart contract. 1C P 1S P 2C P 2D Forcing. Pass with no game interest. 1C P 1D P 2C 2H 2S Forcing. Reverses by responder are forcing, even in competition. 1C P 1S P 2C P 3S Not forcing. Responder's jump rebids in the same suit are not forcing unless opener has rebid 1NT or reversed (whereupon all jumps are forcing). 1C P 1S P 2C P 4C Forcing 1D P 1S P 2C P 2H Fourth Suit Artificial. 1S P 1NT P 2NT P 3C Both partners have made limit bids, so how can one of them start forcing? Responder has a long weak club suit, doesn't like notrump. 1S P 2S P 2NT P 3H Not forcing. With a hand like S-Q65 H-KQ943 D-8 C-6542 responder must bid 4H, not 3H, which he would bid without the queen of hearts. This jump to 4H is not useful as a splinter bid, because slam is out of the question after a single raise and mere 2NT rebid. 1S P 2S P 3C P 3H Forcing. Responder may not have a heart suit, and is perhaps making a trial bid with a holding such as KJx. The difference between this and the previous auction is that opener, with five spades and four clubs, is unlikely to have heart support. A 3H bid is therefore more valuable as strength-showing than suit- showing. 1S P 2C P 3C P 3S Forcing. Responder shows too much for an original 2S raise and opener shows extra values by going to the three level. The logic of the auction says that game will be bid. 1C P 1S P 3C P 3S Forcing. Whenever responder bids over a strong but non-forcing jump by opener, opener must bid again. The only way to stop short of game now is for opener to bid 4C. 1C P 1S 2H 3C P 3S Not forcing. Opener has a good hand, but may not have been planning a jump to 3C over 1S. If he was stretching, he can pass 3S. 1C P 1D P 2NT P 3C Forcing. See chapter STOPLIGHT CONVENTION in the book "Marvin's Conventions and Treatments." 1C P 1S 2D 2NT P 3C/3S Not forcing, weak sign-off. Stoplight does not apply when the 2NT bid is not a jump. 1C P 1S P 2D P 4C Splinter bid in support of diamonds, not a club raise. Denies five spades. 3D would be invitational and 3C a weak preference, so responder must often resort to Fourth Suit Artificial to keep the bidding going. 1H P 2D P 2NT P 3D Not forcing. When the 2NT bid is non-jump, a repeat of the same suit is weak, warning that responder's suit may not run at notrump. Opener needs a diamond fit to go on. Any other three level bid by responder, including 3H, would be forcing. 1D P 1H P 3NT P 4S Forcing. This is a notrump raise, not a natural bid. Responder's hearts need a good fit to be useful for slam. A natural 4S bid is not avail- able over a natural 3NT bid. 1C P 1H 4D P P 4S Not quite forcing. Responder probably has a 4-5-1-3 hand, so opener can run to clubs or hearts if he lacks spade support. 1D P 1S P 3NT P 4H Not forcing, but invitational. Do not rescue a 3NT bid with a very weak hand. 1H P 2D P 3C P 3D Forcing. When opener voluntarily goes to the level of three, he promises to bid again even if responder merely rebids her suit. 1S P 2C P 2NT P 3S Forcing. Responder's hand is unlimited. He is probably offering a choice between 4S and 3NT, but he could even have slam in mind. 1H P 3C P 4C P 4H Not quite forcing, but opener will seldom pass with this double fit. 1S P 3H P 4H P 4S Forcing, since responder could presumably pass 4H with a minimum jump takeout. 1C P 1S P 2H P 3H Forcing. When a reverse into a major gets raised, opener must go on unless the original response was 1NT. 1H P 2C P 2S P 3H Forcing. A return to hearts at the level of three is forcing on opener, unless the original response was 1NT. Responder must have heart support and too much for a raise of 1H to 2H. 1D P 1S P 2H P 2NT Not forcing. Theoretically denies five spades, but might have five weak spades and strong clubs: S-108765 H-J2 D-85 C-AQJ9 1H P 2C P 2S P 2NT Forcing, in view of the two-over-one response and opener's reverse. If opener had rebid 2D, 2NT would not be forcing. 1D P 1S P 2H P 3D Not forcing, weak sign-off. Denies five spades. 1D P 2C P 2H P 3D Also a weak sign-off, despite the two-over-one response: S-432 H-8 D-Q87 C-AQ10874. A 3C rebid would also be weak, and a 2S rebid is Fourth Suit Artificial. 1S P 2D P 2S P 3C Forcing. New suit bids at the three level by either partner are usually forcing. 1C P 1S 2H P P 3D Forcing, despite opener's pass. Without enough to force, responder can double for takeout. See chapter ACTION DOUBLES in the book "Conven- tional Doubles." 1C P 1S P 2S P 3C Forcing. After a raise by opener, a return to opener's suit is usually forcing. 1C Dbl 1S P 2S P 3C Not forcing, in view of the failure to redouble. Responder has only four spades. 1H P 1S P 2S P 3H Forcing. If responder has S-AK93 H-Q87 D-42 C-J432 she must respond 2C instead of 1S, or she may find herself in this forcing situation. 1S P 2H P 3H P 3S Forcing. Don't bid 2H with a four-card suit, spade support, and 11 points or so--or you might find yourself in this forcing sequence. With five hearts and a doubtful hand, just pass 3H. 1S P 2C P 2H P 3H Not forcing: S-2 H-10987 D-A65 C-KJ873 1C P 1H P 1NT P 2S P 2NT P 3C Forcing. After a 1NT rebid, a reverse followed by a raise is a forcing sequence. Use Checkback Stayman with an invitational hand. 1C P 1H P 2C P 2S P 2NT P 3C Not quite forcing. Responder must raise to 3NT, jump to 4C (promising short diamonds), or bid 3D, with a game-going hand. 1D P 1H P 2C P 2S P 3C P 3H Forcing. After Fourth Suit Artificial (2S) only a direct raise (4C over 3C), a rebid of the fourth suit, or a notrump bid is non-forcing. 1D P 2C P 2D P 2S P 3C P 3D Forcing. Responder could presumably have passed 3C with insufficient values to force. 1C P 1H P 1S P 1NT P 2NT P 3C/3H Forcing, accepting the game try. Responder cannot say she likes notrump and then say she wants to stop in a suit. The 3C bid could be based on something like: S-9 H-A1084 D-A962 C-9843 (3C or 3H implies nervousness about diamonds). 1C P 1H P 1NT P 2NT P 3H Forcing, accepting the invitation to game and giving responder a choice of contracts. Opener no doubt has less than adequate trump support for hearts, since a good hand raises hearts immediately with J10x or better. He could have S-A10 H-972 D-AQJ10 C-K1092.