Unusual vs. unusual inc. Michaels - folksbridge21/system2 GitHub Wiki

1S-(2NT): oppo shows lowest two unbid suits, here shows minors

  • 1S-(2NT)-3H/3S: non-forcing, compete
  • 1S-(2NT)-3C/3D: cuebid oppo's suit shows strong hand, low-low, high-high. 3C cuebid shows good hand with H, 3D cuebid shows good hand with S support
  • 1S-(2NT)-X: suggest penalty double for either of oppo's suit

1S-(2S): oppo shows H and unspecified minor

  • 1S-(2S)-3S: non-forcing, compete
  • 1S-(2S)-3H: cuebid oppo's known suit means good support in S
  • 1S-(2S)-3m: natural，GF， but should be aware of bad split in minors

应叫方叫michael后其搭档的后续叫牌:

  • 搭档对高花开叫叫michael扣叫后,对低花有邀叫实力走2nt, 对高花有邀叫实力叫3D

(1S)-2S-P-2NT-3C-3D, 对方片邀叫
(1S)-2S-P-3D, 对红心邀叫
直接叫高花或者低花表示弱牌

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