我陆续粗略地介绍几种比赛用的2/1体系,是谁用的,先卖个关子。
体系:2/1。
概要:
1.5张高花,开叫,2/1GF。进取性的。1N:15-17(6m/5M.14)1D-2C-2x-3c=FG。轻的重开叫。扣叫:6-12 or 强。跳扣:止张问叫。
2.争叫:针对NT:1.(强1NT)-?X:C or H+D ;2C=D or M;2D:H or S+C;2H=S+m;2S=S+D;2N=H+C or 强 2.(弱1N)-?X=4+S with another suit ,2C/D=this suit + H 2M=自然3.平衡位置:X=good hand,2C=short C or M
开叫及应叫:
1C=2+,11-14NT or 18-20NT or nat .
应叫:1D=0-7HCP.or nat(3),1H/1S=7+HCP.walsh style 1N=8-11.低花反加,WJS 2 way 2N.
1D=4+;44m open 1D
应叫:2D=inverted;WJS;2NT=nat 3C=inv;relay
1H/1S=5+suit,can be light and can be 4 3rd pos
应叫:1N=6-12HCP semi-f;2m=FG;1S-2H=fg;1H-2S=pre;1S-3H=natinv,1m-2Nt=gffit
1N=(14)15-17/m6/stiff OK;5M rare but possible
应叫:2C=nf stm;4suit transfer;texas;3C=minors light inv ;3D=minors GF;3M=bad suit salm try;gerber;
2C=strong hand
应叫:2D=waiting;2H=dbl neg;2S=H,2NT=S;3C/3D=nat
2H=weak both major and 4+ in minor
2S=weak 5S cards
2N=20-21bal;5M/6m/stiff ok
应叫:Puppet;transfer;4level=one under trans
注:
1.2M开叫通常M+ m 54(有局对无局通常55),2M-2N后接力;
2.多义2D
3.1C-1D:0-7 any shape or nat;
4.1m-1H-2H:2S接力
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比赛用2/1体系之一
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