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Two-over-one Game Forcing (abbreviated as 2/1 GF) is a variant of Standard American, in which a simple two over one new suit response by an unpassed partner is always game forcing (some don't play 1 - 2 is forcing).

All responding hands that are unable to make any other responses still bid 1NT, as in Standard American, but it is now forcing by an unpassed partner, since it can be bid with 6-11 HCPs with any shape which has no support for the opener (rather than 6-9 HCPs in Standard American).

Openings Edit

Same as Standard American#Openings

Suit auctions Edit

See sub-article /suit auctions

Notrump auctions Edit

Same as Standard American/notrump auction