In its simplest terms, the "system" described as 2-over-1 game-forcing refers to the following 6 bids :
1 Diamond - 2 Clubs
1 Heart - 2Clubs
1 Heart - 2 Diamonds

1 Spade - 2 Clubs
1 Spade - 2 Diamonds
1 Spade - 2 Hearts
When responder uses a game-forcing "2-over-1" b
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