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发表于 2017-6-9 16:24:22
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第14付,双方无局。
西开叫1NT,北家持有16点力,如何defense?
1. play DONT (Disturbing Opponents' No Trump)
http://www.bridgebum.com/dont.php
Double: Any one suit (5+ cards), relays to 2C;
2C: Clubs and a higher suit (At least 4-4 in the two suits);
2D: Diamonds and a higher suit;
2H: Hearts and a higher suit (spades);
2S: 5+ spades, weaker than a double followed by a 2 rebid.
question from laowei,
Dont里面的2D、2H保证几张D和H?4张还是5张?
answer from D老师,
保证4张,45,54,或55两套。
对初学者,建议先学打CAPP=Cappelletti
http://www.bridgebum.com/cappelletti.php
Double: Penalty, 15+HCP;
2C:A one-suited hand (any suit, 5+ cards) with roughly 11-15 points;
2D:At least 5-4 or 4-5 in hearts and spades, asks partner to correct to either major;
2H:At least 5-5 in hearts and a minor;
2S:At least 5-5 in spades and a minor;
2NT:At least 5-5 in clubs and diamonds. |
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