Board 12
North Deals | | ♠ | A 9 4 | | ♥ | 4 | | ♦ | A Q 7 4 | | ♣ | A Q J 9 6 |
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| ♠ | K 6 | | ♥ | J 10 9 8 7 | | ♦ | J 10 9 8 | | ♣ | 7 2 |
| |
| | | | ♠ | J 10 8 7 3 | | ♥ | K 5 2 | | ♦ | 6 5 3 2 | | ♣ | 4 |
|
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| | ♠ | Q 5 2 | | ♥ | A Q 6 3 | | ♦ | K | | ♣ | K 10 8 5 3 |
|
| West | North | East | South |
| | 1 ♣ | Pass | 2 ♦ |
| Pass | 3 ♦ | Pass | 4 ♣ |
| Pass | 4 ♦ | Pass | 4 ♥ |
| Pass | 4 ♠ | Pass | 4 NT |
| Pass | 5 ♦ | Pass | 5 ♥ |
| Pass | 7 ♣ | All pass | |
Here 3 ♦ shows extra values. South has a little extra - 14 hcp and a fifth club - and a bad spade stopper - a suit that opener could be short in - and not five hearts so rebids 4 ♣. Also 3 ♠ would have shown a stiff spade here.
In this auction 4 ♦ is a wide range bid. Usually going past 3 NT shows some slam interest, however with some minimums - no spade stopper - it will be necessary to bypass 3 NT. On the other hand 4 ♦, 4 ♥ and 4 ♠ will be cuebids showing significant extra values - almost demanding a slam.
After every side suit has been cued responder can take control with 4 NT. At 5 ♦ responder knows opener has three aces, five clubs, four diamonds and extra values. If opener is 3=1=4=5 then we need either the ♠ K, ♥ K or the ♣ Q. If opener is 2=2=4=5 then the ♥ K will do. If opener is 1=3=4=5 then the ♥ K is needed. In some other cases there might be finesse options.
Again simulations suggest the grand is around 70% with the given information. So maybe south should just pot the grand here after 5 ♦.
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