I found this problem when playing with robot in on line bridge game .
| Dealer | South |
| Vurn | All |
| North | |
| ♠10 5 | |
| ♥ J976 | |
| ♦ AK765 | |
| ♣108 | |
| South | |
| ♠AKJ2 | |
| ♥ AK42 | |
| ♦ Q10 | |
| ♣A93 |
After making an opening bid of 2NT, you finally reach 4♥. West opening lead is ♦3. East plays the Jack when you play small diamond from dummy.
What is your plan to fulfill the contract?
If the heart breaks evenly, you will make lots of trick. All you need to calculate if the heart break 4-1 and the queen does not drop.
So, I play the ♥ AK, unfortunately West discards club on the second round. What next?
As we play again opponent without knowing their distribution, you have to handle this contract very careful.
Finally I cash the ♦ 10, but no information we get, beleive that diamond are 4-2.
What's your next move to land this contract?
In my opinion, with only 5 cards club on both hand compare to 6 cards spade between two hands, there is a bigger chance that spade will divide unevenly than clubs. If spade divides 5-2 and west holds the queen, the contract is in danger if we try to ruff the spade to reach the dummy.
With this plan in mind, finally I make a safety play by playing a small spade to 10. I will make the contract no matter where the ♠Q is, as long as the spade distributes no worse than 4-2.
Here is the complete deal.
| Dealer | South | |
| Vurn | All | |
| North | ||
| ♠10 5 | ||
| ♥ J976 | ||
| ♦ AK765 | ||
| ♣108 | ||
| West | East | |
| ♠Q8765 | ♠93 | |
| ♥ 5 | ♥ Q1083 | |
| ♦ 643 | ♦ J92 | |
| ♣KJ76 | ♣Q542 | |
| South | ||
| ♠AKJ2 | ||
| ♥ AK42 | ||
| ♦ Q10 | ||
| ♣A93 |
