A cue shows a 2-suited hand of the opposite color.
2C cue bid shows both red suits
2D cue bid shows both black suits
2H cue bid shows both black suits
2S cue bid shows both red suits
A cue shows a 2-suited hand of the opposite color.
2C cue bid shows both red suits
2D cue bid shows both black suits
2H cue bid shows both black suits
2S cue bid shows both red suits
A bidding convention is an agreement between two players on a different meaning of a bid in the card game bridge. These agreements are made so that partners can more quickly determine which contract, with both their cards, they can win together. Often, conventions are forged together into one, which is then called a bidding system.