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Attack on the uncastled king: knight to a4 (c3·21)

c9-07877
Puzzle rating: 1056Theme: Chess960 twist: use the unusual starting setup of the pieces.
a8b7c6d5e4f3g2h1
White to move — find the best continuation

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The tactical motive

Chess960 twist: use the unusual starting setup of the pieces.

White to move — find the best continuation

Solution & explanation

Main line

5. Nxa4 h5 6. g5 O-O 7. Nc3

Why it works

  • Great move! knight to a4 keeps the pressure (+7.0).
  • pawn to g5 develops smoothly.
  • Precise: knight to c3 is the top choice (+6.8).
  • You win a piece — the queen.
  • If instead h5, then g5 and you win the queen.

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