A smothered mate occurs when a Knight gives checkmate because the opponent’s
pieces block their own King’s escape.
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This is the starting position for the Smothered Mate.
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White is in double check from the White Queen and
the White Knight.
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The Queen sacrifices herself to force the Rook to
g8 removing any possible escape routes for the Black King.
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The White Knight returns to f7 to give Checkmate.