This hand is from the recent Victor Champion Cup in Melbourne and both teams bid to 6D. The actual 2/ 1 GF auction that was made against us is shown. The 4D bid was minorwood and South showed two keycards without the QD. At our table, East found the lead of the 6S, dummy played the 10 and the three and two completed the trick. Declarer cashed the AD and crossed to the AH before returning a small diamond for a finesse. This lost to the QD and East had an opportunity to give his partner a spade ruff. This should be simple since West is known to not hold the king or queen of spades since he would have covered the 10S. EW were playing natural signals so, with 83 doubleton, West would have played the 8S. Declarer should have muddied the waters by playing the 8S on trick one. Now, it is not clear if West has the singleton 3 or 32 doubleton and East might miss the ruffing chance.
In the other room, the same contract was played, more normally, by South after the auction 1H- 1S- 2D- 4D- 4N- 6D.
Now, West leads the singleton spade and it is obvious to everyone that it is a singleton since that is the only reason for leading the opponent’s suit. Declarer beat the JS with the ace, played the AD, returned to hand with a heart and took the diamond finesse and also went one down to the spade ruff. Declarer needs to count her tricks. There are 4 spades, 2 hearts, two clubs, at least 3 diamonds and a ruff of either clubs or hearts. As only 3 diamond tricks are required, declarer should play the AKD. If diamonds are 3- 2, the contract is easy to make just leaving the QD out. If the QD falls, as here, then draw the last trump and try for 13 tricks. Lastly, if the diamonds are 4- 1 onside, simply ruff a club and lead a third diamond toward the JD to pick up the outstanding small trump.