Opening Lead: Queen of hearts
Mirror distribution is usually discovered too late. South, in this hand, wondered if he had bid enough. When he saw the dummy, he realized that he had bid too much, all because of nearly mirror distribution.
The Bidding: South opened 2C, which shows a strong hand and is artificial. North had enough to make a positive bid but made an artificial waiting bid of 2D because he did not have a good suit. South showed his spades and cue bidding followed the acceptance of spades as trump. 6S became the final contract.
The Play: A diamond lead would defeat 6S, but West has a natural lead of the queen of hearts. Because of the mirror distribution in the minors, the only hope for a twelfth trick lies in the heart suit. Declarer wins the king, pulls trump and leads the eight of hearts. West must cover and the ace wins. Back to his hand with the ace of clubs, declarer leads another heart and the nine of hearts becomes the twelfth trick..
What Happened: Six spades went down twice when played from the south. At my table, a precision auction got us to 6S and was played by North. Fortunately, West threw two hearts on a club and a spade and I was lucky enough to take 12 tricks by giving up a heart. The broken mirror was not unlucky for us!