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Paul Morphy vs Theodor Lichtenhein · 1857 · move 20.
Which knight move attacks the bishop on d6?
Morphy’s kingside pawns open lines while Lichtenhein’s pieces try to contain the pressure. A bishop check and a knight jump keep Black occupied, then the e-pawn advance clears a rook’s route. Follow the opening and closing of lines: the attack depends on coordination rather than a single sacrifice.
Before reaching for a move, identify the opponent’s immediate threat and the piece you most want to improve. Then compare checks, captures and quiet moves. The complete interactive lesson will let you test your answer without revealing the historical continuation first.
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