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Attack on the uncastled king: pawn to a3 (b2·19)

c9-05665
Puzzle rating: 1073Theme: 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

7. bxa3 O-O-O 8. Bh2 Nd5 9. Qc2

Why it works

  • Great move! pawn to a3 keeps the pressure (+6.5).
  • bishop to h2 develops smoothly.
  • A natural move: queen to c2.
  • You win a piece — the queen.
  • If instead Nd5, then Qc2 and you win the queen.

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