New Minor Forcing is an artificial, forcing "checkback" bid by responder after the auction begins with 1-minor : 1-major, 1NT. Responder can bid the "new" minor suit at the 2-level, which suggests a 5-card major and 10+ points. New Minor Forcing fills the need for the partnership to identify a 5-3 major-suit fit, since opener's 1NT rebid may include 3 cards in responder's suit. NMF is specifically used in the following sequences: Opener     1 1NT 1 1NT Responder 1/ 2 (NMF) 1/ 2 (NMF) Opener's Rebids The following rebids assume a natural 15-17 1NT opening bid, which means that opener's 1NT rebid in the above scenarios shows 12-14 HCP. Note that opener's priority is to show 3-card support for responder's major suit. 2 : A rebid of opener's minor shows 5 cards and denies 3-card support. Note that a 2 rebid is only possible after the specific sequence 1 : 1-major, 1NT : 2. Not forcing. 2 : Shows 3-card support with 12-13 points if responder's first bid was 1. Otherwise, this shows 4 hearts if responder's first bid was 1. Not forcing. 2 : Shows 3-card support with 12-13 points if responder's first bid was 1. Not forcing. This is not a possible bid if responder's first bid was 1, because opener would have rebid 1 instead of 1NT with 4 spades. 2NT : 12-14 points, balanced, no 3-card support (typically 4-4-3-2 shape). Implies a stopper in the unbid major. Not forcing. 3 : A rebid of opener's minor shows 5 cards and denies 3-card support. Note that a 3 rebid is only possible after the specific sequence 1 : 1-major, 1NT : 2. This is an uncommon bid since opener will prefer to bid 2NT before his own club suit at the 3-level. Not forcing. 3 : Unbalanced with 4 diamonds and 13-14 points, typically with 5 clubs and insufficient strength for a reverse. This is a rare bid. Forcing. This bid specifically comes up in the following sequence: Opener    1 1NT 3 Responder 1/ 2 3/ : A jump raise of partner's suit shows 13-14 points with 3-card support. Forcing. Responder's Rebids Responder's third bid is natural and non-forcing, except for any other agreed conventions (e.g. 4NT Blackwood). In Competition New Minor Forcing is Off in competition. Examples Opener Responder 843 KQJ52 A632 KQ5 AK65 T9 QT 953 Opener 1 1NT 3 (2) Responder 1 2 (1) 4 (3) 2 is New Minor Forcing. 3 shows 3-card support and 13-14 points. Forcing. 4 is a signoff. Opener Responder JT2 K5 32 AQJ98 AJT Q432 AQ765 K9 Opener 1 1NT 3 (2) Responder 1 2 (1) 3NT (3) 2 is New Minor Forcing. 3 denies 3 hearts, and shows 5 clubs. 3NT is a signoff.