When this hand was played against me by my worthy  opponent Gill Stock in a local club duplicate, after some time of thinking at trick one she worked out that I had the rest of the strength going and with all those Diamonds looming in dummy she cashed a second spade to hold the contract to 11 tricks. Most of the other defenders switched passively at trick two and now declarer was able to easily wrap up 12 tricks for an above average score. 11 tricks was worth 80% against me J

You can also view  watch the following movie to see how the hand pans out. (You need bridgvu.exe programme  or BridgeBase programme on your machine already to view it ) and it is available free from

http://www.haroldschogger.com/videos.htm

 alternatively watch the film www.haroldschogger.com/movies2.htm