Is It Possible to Revoke During a Claim?
On today's deal from the Friday duplicate, all four players were culpable:
The bidding was typical: south preempted with an inappropriate hand, and north took a wild gamble.
The opening lead of the spade king fetched the seven and six. West should have considered more carefully that declarer might have attempted a falsecard in the suit, but in fact that would have backfired. A falsecard here has a chance to work only if all of declarer's spades are higher than east's play.
In any case, west continued with the ace of spades, ruffed. Two top
hearts followed, then a diamond to the queen and ace. Declarer now led a
club to dummy and
claimed — but the story doesn't end here.
East, somehow aware that he was still in possession of a trump, contested. Displaying the heart jack, he stated that north's second club would win but that he would ruff the third, leaving declarer with a diamond loser.
South promptly acquiesced, apologizing to partner for not having drawn all
the trumps. The hands were folded up, a score of
-50 was entered on
the traveler, and the foursome proceeded to the next board.
Anything can, and does, happen at Dante's Infernal.