1NT-(2C)-?
X = power
2D = NAT
2H = Both m INV
2S = Both m FG
2NT = LEB
3m = NAT FG
3M = m55+ SPL
3NT = to play
4C = not use?
4R = TRF to 4M
1NT-(2D)-?
X = power
2M = NAT
2NT = LEB
1NT-(2M)-?
same as 1NT-(2M = NAT)-?
参考レーベンソール after 1NT
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