Main Opening Sequences
- 1♣: Conventional, 16+
- Responses:
- 1♦: negative, 0-7. If playing the "impossible negative", any 4-4-4-1; this will be followed by a strong rebid.
- 1♥, 1♠, 2♣ 2♦: 8+, 5-card suit
- 1NT: 8-10, balanced
- 2♥, 2♠: 4-7, 6-card suit
- 2NT: 11-13 or 16+, balanced
- 3♣, 3♦, 3♥, 3♠: 4-7, 7-card suit
- 3NT: 14-15, balanced
- 1♦: 11-15, no 5 card major or 6 card club suit. Sometimes a 3 card suit; some partnerships will open on a 2 card suit with shapes such as 3-3-2-5.
- 1♥, 1♠: 11-15, 5-card suit
- 1NT: 13-15, balanced
- 2♣: 11-15, 6-card suit or a 5-card suit with a 4-card major
- 2♦: Conventional (Mini-Roman), 11-15, 3-suited hand with singleton or void in diamond
- 2♥, 2♠: Weak two bid, 8-10, good 6-card suit
- 2NT: 22-24, balanced
- 3♣, 3♦, 3♥, 3♠: normal preempts
- 3NT: Conventional (Gambling), solid 7-card minor suit leading with AKQ, no outside strength
Read more about this topic: Precision Club
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