Second degree assumption was popularized by Terence Reese, a great author of bridge book. I found out this theme during the Frans Waleleng Invitation Pairs last week in Jakarta.
At love all, the bidding run as below:
| South | West | North | East |
| 1H | 2D | 3H (weak) | pass |
| 4H | X | all pass |
West started with ♦A and continue with ♦K when East signal with ♦10.
Here are the cards.
| Dummy |
| ♠ 105 |
| ♥ Q986 |
| ♦ 432 |
| ♣ J954 |
|
|
| Declarer |
| ♠ AJ43 |
| ♥ A10754 |
| ♦ 8 |
| ♣ AQ3 |
How do you proceed?
In order to succeed you need to place the ♣K on East. When West make a double on his own hand, you shall place all of high cards in his hand. Another assumption is ♣10 shall be with West, you will fail otherwise.
When you ruff the second diamond and lay down the ♥A, West follows with ♥K. What next? A small heart to Queen, followed by diamond ruff, close the exit card. Then you play a small spade. West will win and end-played.
Below are the complete distribution.
|
| Dummy |
|
|
| ♠ 102 |
|
|
| ♥ Q986 |
|
|
| ♦ 432 |
|
|
| ♣ J954 |
|
|
|
| West |
| East |
| ♠ KQ97 |
| ♠ 865 |
| ♥ K |
| ♥ J32 |
| ♦ AKJ76 |
| ♦ Q1095 |
| ♣ 1065 |
| ♣ K87 |
|
|
|
| Declarer |
|
|
| ♠ AJ43 |
|
|
| ♥ A10754 |
|
|
| ♦ 8 |
|
|
| ♣ AQ3 |
|
Club return will solve declarer problem, then West return spade. Assume West return ♠K. Declarer win with ♠A and cash ♠J to discard a club. Spade ruff. East may be overruff but he will be end played. If he discard club, then declarer will land his contract with 3 club tricks. If he parts with diamond, he will throw-in with heart. A nice board.
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