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Attack on the uncastled king: pawn to b3 (c2·5)

c9-02846
Puzzle rating: 1084Theme: 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. cxb3 O-O-O 10. b4 Qf7 11. Bxh4

Why it works

  • Great move! pawn to b3 keeps the pressure (+5.6).
  • pawn to b4 develops smoothly.
  • Precise: bishop to h4 is the top choice (+5.8).
  • You win a piece — the knight.
  • If instead O-O-O, then Bxh4 and you win the knight.

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