z***y
发帖数: 198 | 1 Standard American Yellow Card
Revised and Expanded by Mark London (m*[email protected])
GENERAL APPROACH
because if you open 1M with 5 card major and 15-17, you will find
there is no bid after pd's 2/1 bidding
for example, Axxxx Kxx KQx Ax
what can you bid after pd's 2c? no bid . 2nt is too weak, 3nt shows
18-19 pts, 2sp is too weak, and you will face pd's ugly 4h raise
if you bid 2h. so 1nt is the only bid indeed.
1NT = 15-17
2NT = 20-21
3NT = 25-27
Strong artificial 2C opening.
Weak tw |
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