About: Forcing 1NT   Sponge Permalink

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Forcing 1NT is a convention used in the 2/1 game forcing system. It applies to an unpassed partner in the following auctions: * 1♥ - 1NT * 1♠ - 1NT It is not used after a minor suit opening. In standard bidding, it is a catch-all bid for all hands with 6-9 HCPs, without support for partner's opening and not able to bid 1♠. With 10+ HCPs and no support for partner's opening, a responder bids their 4-card suit at the 2-level, or 2NT if the hand is 10-12 HCPs balanced and there are stoppers in all unbid suits (unless Jacoby 2NT is used).

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  • Forcing 1NT
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  • Forcing 1NT is a convention used in the 2/1 game forcing system. It applies to an unpassed partner in the following auctions: * 1♥ - 1NT * 1♠ - 1NT It is not used after a minor suit opening. In standard bidding, it is a catch-all bid for all hands with 6-9 HCPs, without support for partner's opening and not able to bid 1♠. With 10+ HCPs and no support for partner's opening, a responder bids their 4-card suit at the 2-level, or 2NT if the hand is 10-12 HCPs balanced and there are stoppers in all unbid suits (unless Jacoby 2NT is used).
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abstract
  • Forcing 1NT is a convention used in the 2/1 game forcing system. It applies to an unpassed partner in the following auctions: * 1♥ - 1NT * 1♠ - 1NT It is not used after a minor suit opening. In standard bidding, it is a catch-all bid for all hands with 6-9 HCPs, without support for partner's opening and not able to bid 1♠. With 10+ HCPs and no support for partner's opening, a responder bids their 4-card suit at the 2-level, or 2NT if the hand is 10-12 HCPs balanced and there are stoppers in all unbid suits (unless Jacoby 2NT is used). However, in the 2/1 game forcing system, a 2/1 response promises game-going strength (i.e. 12+ HCPs) by an unpassed partner, therefore, the original 2-level responding cannot be used by hands with 10-11 HCPs. Therefore, the 1NT response is expanded to all hands with 6-11 HCPs, without support for partner's opening and not able to bid 1♠. It is now forcing for one round. As a passed hand cannot force to game, some plays a variant called semi-forcing 1NT if the responder has passed which allows opener to pass with a balanced hand and a bare minimum.
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