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pixixi (乾坤一掷--金钩变银钩) 于 (Tue Mar 20 01:54:17 2007) 提到:
please...
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boreas ( 北风之神～在人生的N叉路口) 于 (Tue Mar 20 02:04:55 2007) 提到: http://www.slospin.net/Duplicate%20Bridge/Bridge%20Conventions/bridge_splinter.htm
a way to show a singleton or void with good trump support
you do so by a double jump shift.
