notrump
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notrump [2018/07/01 19:37] ldrews |
notrump [2018/07/01 19:53] (current) ldrews |
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| With a 5+ card major, Responder uses a Jacoby Transfer to force opener to bid the major suit after which the Responder passes. This is essentially an escape. | With a 5+ card major, Responder uses a Jacoby Transfer to force opener to bid the major suit after which the Responder passes. This is essentially an escape. | ||
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| + | For those not familiar with Jacoby Transfers, Responder bids 2D to force Opener to rebid 2H, and bids 2H to force Opener to rebid 2S. | ||
| With a 7+ card minor, Responder should consider bidding 3 of the minor suit. Do this only if Responder has 7-9 HCP, because opener may rebid forcing Responder to rebid at the 4 level. | With a 7+ card minor, Responder should consider bidding 3 of the minor suit. Do this only if Responder has 7-9 HCP, because opener may rebid forcing Responder to rebid at the 4 level. | ||
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| | 13-16 HCP, no 4 card major | 3NT | To play | | | 13-16 HCP, no 4 card major | 3NT | To play | | ||
| | 16+ HCP, no 4 card major | 4NT | Quantitative invite to 6N, opener passes with min | | | 16+ HCP, no 4 card major | 4NT | Quantitative invite to 6N, opener passes with min | | ||
| - | | 10+ HCP, 4 card major | 2C | Australian Stayman | | + | | 10+ HCP, 4 card major | 2C |Stayman | |
| | 10+ HCP, 5 card major | 2D/2H | Jacoby Transfers | | | 10+ HCP, 5 card major | 2D/2H | Jacoby Transfers | | ||
| | 10+ HCP, 5/4+ in minors | 2S | Minor suit stayman, asks opener for 4 card minor | | | 10+ HCP, 5/4+ in minors | 2S | Minor suit stayman, asks opener for 4 card minor | | ||
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| With 5 cards in your major, use a Jacoby Transfer to force opener to bid your major. After opener bids your major, if you have 10-12 HCP and no other 4 card suit, bid 2NT. If you have another 4 card suit, bid the next level of that suit. This allows partner to choose at the 3 level. If you have 13+ HCP, bid 3NT or a jump in your other suit. Again this allows opener to choose the final contract. | With 5 cards in your major, use a Jacoby Transfer to force opener to bid your major. After opener bids your major, if you have 10-12 HCP and no other 4 card suit, bid 2NT. If you have another 4 card suit, bid the next level of that suit. This allows partner to choose at the 3 level. If you have 13+ HCP, bid 3NT or a jump in your other suit. Again this allows opener to choose the final contract. | ||
| - | With 4 cards in one or both majors, use Australian Stayman to ask opener if opener has a 4 card major. We will describe Australian Stayman in the next few paragraphs. After opener responds with an Australian Stayman response, Responder should be able to place the final contract. | + | With 4 cards in one or both majors, use Stayman to ask opener if opener has a 4 card major. If Opener rebids 2D or a major that you do not have 4 of, bid 2NT to invite to game, or bid 3NT if you have 12+ HCP. If Opener rebids a major that you have 4 of, raise to 3 to invite to game, or bid game if you have 12+ points (HCP+DP). |
| - | + | ||
| - | **Australian Stayman** | + | |
| - | + | ||
| - | Australian Stayman (AS) is a variation on the Standard American Stayman convention that is more efficient and can convey more information in one response bid. The AS responder, in this case the opener, must alert the responses since they differ in meaning from Standard American Stayman. | + | |
| - | + | ||
| - | OK, opener bids 1N, responder bids 2C, then opener rebids: | + | |
| - | + | ||
| - | (Min range) | + | |
| - | |2D|Have 4 cards in both majors and min range| | + | |
| - | |2H|Have 4H only and min range| | + | |
| - | |2S|Have 4S only and min range| | + | |
| - | |2NT|Do not have either major and have min range| | + | |
| - | + | ||
| - | (Max range) | + | |
| - | |3C|Do not have either major and have max range| | + | |
| - | |3D|Have 4 cards in both majors and max range| | + | |
| - | |3H|Have 4H only and max range| | + | |
| - | |3S|Have 4S only and max range| | + | |
| **No majors, unsuitable for NT** | **No majors, unsuitable for NT** | ||
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| OK, Responder has no 4+ card major, and has a hand that, on the surface, does not look suitable for NT. This usually means that Responder has 9+ cards in the minors. If Responder has an unbalanced hand with 6+ cards in one minor, and 10-12 HCP then Responder bids 3 of the minor. Opener must proceed carefully here and usually pass unless opener has a 14-15 HCP hand. If Responder has 13+ HCP then Responder may bid 4 of the minor, inviting opener to bid game in the minor. Since opener has a balanced hand, opener should probably reject any thoughts of slam in this situation. | OK, Responder has no 4+ card major, and has a hand that, on the surface, does not look suitable for NT. This usually means that Responder has 9+ cards in the minors. If Responder has an unbalanced hand with 6+ cards in one minor, and 10-12 HCP then Responder bids 3 of the minor. Opener must proceed carefully here and usually pass unless opener has a 14-15 HCP hand. If Responder has 13+ HCP then Responder may bid 4 of the minor, inviting opener to bid game in the minor. Since opener has a balanced hand, opener should probably reject any thoughts of slam in this situation. | ||
| - | If Responder has 5/4+ in the minors, Responder uses the Minor Suit Stayman convention. Using this convention, Responder bids 2S, asking opener to bid a 4+ card minor if opener has one. Based on opener’s response, Responder can pass or raise the bid. | + | If Responder has 5/4+ in the minors, Responder uses the Minor Suit Stayman convention. Using this convention, Responder bids 2S, asking opener to bid a 4+ card minor if opener has one. Opener rebids a minor or 2N to indicate no minor. Based on opener’s response, Responder can pass or raise the bid. |
notrump.1530473832.txt.gz · Last modified: 2018/07/01 19:37 by ldrews
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