2S!開叫0-10 HCP, 9-13 minors
以HCP+minors為標準 身價不利 HCP+minors 16+
身價相等 HCP+minors 15+
身價有利 54+ 5+HCP, 55+ 3+HCP
高花單張Q/J的點力不列入開叫標準的HCP項目中
2S-2N ask
3m to play
3M good 6+M, inv
3N to play
4m (NV)PRE (V)inv
4M to play
4N 6 key cards
5m to play
2S-2N; 3C C>=D (所有45低花和很爛的55)
(3M=5+M F1, then 3N/4C=misfit Max/min; 4DH=CD kickback)
3D D>C (基本上是54低花，如果是55，C一定超爛)
(3M=5+M F1, then 3N/4C=misfit Max/min; 4DH=CD kickback)
3H 2H, 1255
3S 2S, 2155
3N 75 minors (rare) (4C=ask, then 4D/H=7+C/7+D)
4C 6C
4D 6D
4H 3H, 0355
4S 3S, 3055
4N 66 minors (rare)
之後叫3m/4m/4M基本上都是要打(除了問出54低花有kickback之外)
問關鍵張一律4N 6 key cards rkcb