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Attack on the uncastled king: queen to a7 (a1)

c9-02305
Puzzle rating: 1156Theme: 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

11. Qxa7 Ra8 12. Qc5 Nde4 13. Qxb5

Why it works

  • Great move! queen to a7 keeps the pressure (+4.3).
  • queen to c5 develops smoothly.
  • Precise: queen to b5 is the top choice (+4.8).
  • You win a piece — the queen.
  • If instead O-O, then Nde5 and you win the queen.

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