◇ vs. 1N opening (Astro)

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弱無王直接位置─Astro

(1N!) X    power
           2C   puppet to 2D, weak or minors inv or 6+x inv
                2D      ps/2M   S/O
                        2N      minors 54+, inv
                        3x      6+x inv
           2D   stayman (then 3C=BWS relay, 3M=Smolen, 4m=SF transfer to 4M)
           2M   5M inv
           2N   puppet to 3C, C weak or 2 suits FG+
           3x   6+x FG
           3N   S/O
           4m!  SF transfer to 4M
           4M   S/O
      2C!  H-x 54+ or 5S4H (longer S or 55 Ms)
           2D   P/C
           2M   S/O
           2N   relay
           3m   PRE
           3M   inv
      2D!  S-x 54+ or 5H4S (longer H)
           2H   P/C
           2S   S/O
           2N   relay
           3m   PRE
           3M   inv
      2M   NAT
      2N!  STR 2 suits                  (if PH it's minors)
           3C   relay   (3D/H/S/N=S+x/HD/HC/DC)
      3C+  PRE

若Astro 2m被賭倍
1.XX = 有一門要跑, puppet to 加一階的叫品 then pass or bid
2.pass = 該門有3張以上支持; 若同伴無該門長度請叫加一階的叫品, P/C
3.直接叫 = P/C