zyp163 Posted December 12, 2012 Report Share Posted December 12, 2012 我最近在认真学习竞叫方面的内容。2NT就像个橡皮糠,到处存在。现在它又来了: 持如下牌:KJ54Q3AJ84874叫牌进程:(1C)-1S-(X)-?劳伦斯大师提供的新式武器是:2NT我们用的是混和跳扣叫? 请教这个进程的渊源。 Quote Link to comment Share on other sites More sharing options...
gamebridge Posted December 12, 2012 Report Share Posted December 12, 2012 我个人认为是点力。 现在开叫人和应叫人的点力至少是 (12+6=)18 点以上,按着3点一墩的理论,争叫方打2NT 需要(8×3=)24点。 推进人的2NT作为自然性质的2NT的可能性已经不大了。 Quote Link to comment Share on other sites More sharing options...
yin970902 Posted December 12, 2012 Report Share Posted December 12, 2012 2nt 加叫是四张将牌的限制性加叫或更好。当知道了加叫的不同方式,就能选择出合适的叫品。跳扣叫不合适,简单扣叫2c 不合适,2s加叫不合适,3s跳加叫不合适。 Quote Link to comment Share on other sites More sharing options...
lycier Posted December 15, 2012 Report Share Posted December 15, 2012 此刻2nt是流行的通用约定,效果非常好,描述也很生动准确。 Quote Link to comment Share on other sites More sharing options...
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