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Attack on the uncastled king: pawn to b5 (a4·11)

c9-03590
Puzzle rating: 1069Theme: 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

9. axb5 Nd4 10. Qa3 Qc8 11. Rxd4

Why it works

  • Great move! pawn to b5 keeps the pressure (+5.0).
  • queen to a3 develops smoothly.
  • Precise: rook to d4 is the top choice (+5.3).
  • You win a piece — the knight.
  • If instead Ne7, then c4 and you win the knight.

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