I win and play a middle trump to hand, then ruff a diamond high. RHO pitches a club on this. That has to be a revoke. I continue with another middle trump to hand, ruff another diamond high, to which RHO follows. I remark that she pitched a club on the previous round of diamonds. She denies it, so we agree to look later. I overtake the last middle trump in dummy to come back to hand and run my red winners.
RHO pitches three spades, including the deuce, on
these cards, presumably coming down to the
I go up with the
As we are scoring it up, RHO starts yelling at her partner, "why didn't you ask me, 'no diamonds, partner?'" I chuckle and point out that the revoke didn't cost a trick, that I surely would have taken the marked spade finesse in the end otherwise and made 12 tricks on my own. The only reason I didn't was that I knew I'd get the last trick awarded to me.
I've never before seen a marked finesse become an error due to a revoke.
Amazingly enough, two hands later, the same LHO now revokes! This one costs him two tricks, but there was no matchpoint difference between his -1100 and -500, so that's two revokes in the same round which cost the opponents exactly nothing!