A stunning exchange sacrifice...

1/24/2010 – ...in the Marshall Attack was unleashed by Peter Leko in the 4th round in Wijk aan Zee versus Lenier Dominguez. Playing black, here he was facing the question of whether it would be advisable to immediately occupy the long diagonal with 23...Bc6 despite the riposte 24.d5, blocking it with tempo. What do you think? A) this wins for White; B) Black prevails; C) the position eventually remains balanced. The solution is here, but first ponder over it with a larger version of the diagram.

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