Go down too much after overbidding
Bridge players like to have a fit with partner and recall the advice learned on grandma’s knee to support with support, especially in the majors. What do you think of the auction in this deal? How did the play go in four hearts?
In a duplicate, most Souths made a takeout double over two spades. This should have prompted West to respond three diamonds, but each West passed. Then, two Norths unwisely passed. The other Norths bid three hearts (not employing the Lebensohl convention, which would have allowed them to warn of a weak hand by advancing with two no-trump), and every South could not resist raising to four hearts.
When one South preferred to overcall three hearts, West nudged to three spades (trusting partner to have a good suit at the prevailing vulnerability), and North bravely or foolhardily, depending upon the outcome, raised despite having only 3 highcard points.
West led the diamond ace and continued with the diamond jack. East discouraged with the two, then played the 10 as a suit-preference signal for spades. West
shifted to that suit (as he had intended to do all along), and East played three rounds of spades to promote West’s heart queen as a trick. The defenders took the contract down two, but plus 100 there instead of plus 140 in three spades was a less-good result.