A deal from a Manchester online league match.
Dealer S Game All.
You reach four spades on the above auction.
West leads the ten of diamonds, form a plan.
The key play is to duck the first diamond.
This forces the defence to play a trump at trick two to prevent a diamond ruff, while you retain the ace of diamonds as an entry.
After the trump switch you draw four rounds of trumps, they break 5-1 with East having the singleton queen.
Then the king of clubs and a club to the ace, it doesn't help West to trump this. If West throws a diamond on the ace of clubs you can ruff a heart in hand cross to the ace of diamonds and ruff another heart in hand for six trumps tricks, two clubs and the red aces. If West throws a heart on the ace of clubs, then ace of hearts throwing a diamond, and the jack of clubs. East wins the queen of clubs but the only other trick the defence gets is the winning trump as there is a winning club in dummy to throw another diamond on.
The full deal was
Thanks to Royce Alexander and John Holland for analysing this deal