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Attack on the uncastled king: queen to a4 (a1·2)

c9-08460
Puzzle rating: 1061Theme: 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

10. Qxa4 a5 11. b5 c6 12. b6

Why it works

  • Great move! queen to a4 keeps the pressure (+4.8).
  • Spot on — pawn to b5 (+4.5).
  • Precise: pawn to b6 is the top choice (+4.4).
  • You win a piece — the bishop.
  • If instead a5, then Be2 and you win the bishop.

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