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Attack on the uncastled king: pawn to a3 (b2·9)

c9-02941
Puzzle rating: 1101Theme: 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

12. bxa3 dxc4 13. Qxc4 Bc6 14. Bb4

Why it works

  • Great move! pawn to a3 keeps the pressure (+5.2).
  • Spot on — queen to c4 (+5.3).
  • Precise: bishop to b4 is the top choice (+5.3).
  • You win a piece — the queen.
  • If instead O-O-O, then cxd5 and you win the queen.

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