nige1, on 2013-October-09, 11:31, said:
Even at double-dummy, you can't defeat the contract. If you replace declarer's ♦J with a small ♦, however, then LHO can lead a ♦ to defeat it. To avoid losing the first 5 tricks, declarer must rise with ♦A. Now RHO can discard ♠s on declarer's ♣s
No,you can't defeat the contract still like you assuming that 9
♦ and J
♦ exchanged.
The best defence is lead spade from east and west overtook with q
♠,shift diamond,then declarer can rise with A
♦,and east will be squeezed after you cash the last club,east must discard 2 cards spade,and then declarer plays a spade,east will be endplayed on 4th heart if west doesn't overtakes with A
♠,and declarer will establishes t
♠ if west overtakes spade with A
♠,so at last defender will just win 2 tricks in spade and 2 tricks in diamond or 2 tricks in spade k
♦ and 4th heart.
....Another problem is
"Can you beat this contract in double dummy?"