Hi, Playing SAYC (or BBO Basic), what can you tell about rules of forcing in these simple sequencies: 1S - 2C 2S - ? 1. Can responder pass ? 2. Did opener promise 6 spades ? 1S - 2C 2NT - ? Can responder pass ? 1S - 2C 3C - ? Can responder pass ? 1S - 2H 3H Is this forcing ? 1S - 2C 2S - 3C Is this forcing ? TIA.