Occasionally the opponents give too much info away, and the defence becomes an open book. Ross Grabel from USA took full advantage in a strong game on BBO earlier today.
He was South and listened to East opening 1♠, he passed and West responded 2♦. Now 3♥ pre-emptive by Chris Larsen in the North seat. East supported to 4♦, and Ross Grabel bid 4♥.
West bid 4♠, and when this came back to Grabel, he had a clear double. Do you see why? Right, as long as Chris Larsen had just two spades, the contract would go down, because the auction had revealed that Larsen must be void in diamonds!
So Grabel duly led ♦2 (suit preference for clubs). Here is the full deal:
Scoring: IMP
East: 4S doubled
Lead: D2!
East: 4S doubled
Lead: D2!
The contract went 2 down for 500 and a good score (around 6 IMPs). Very neat I think. You may blame West for introducing his diamonds at all, but that doesn't make the defence any less spectacular.
(Deal rotated).
Roland

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E: 4S doubled.
Lead: ?