chessnutz

(our weekly chess puzzle)
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Gringo Arpinetti versus Mohamed Bin Al Zarboozy.
Moscow 1983.
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White has Black's King out in the open and looking very exposed to multiple strikes from White's Rooks and Queen. Black will have to be on his toes to avoid the inevitable. Can you see how he tipped the balance in his favour?
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Solution: The pawn beside the White Queen was wearing a suicide vest. The pawn self detonated giving Black a massive material advantage from which Zarboozy won easily.