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Levon Aronian vs Jan-Krzysztof Duda · 2017 · move 30.

Which rook move attacks the knight on e8?

Duda’s rook collects queenside pawns, but the knight on e8 remains vulnerable. Aronian uses a queen trade to enter on d8 and remove that knight with check. The ending is still active for both sides, so White’s knight must help the rook contain Black’s passed c-pawn.

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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