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Attack on the uncastled king: pawn to b5 (a4·6)

c9-00866
Puzzle rating: 1075Theme: 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

13. axb5 O-O 14. Rh3 Bd7 15. Bc2

Why it works

  • Great move! pawn to b5 keeps the pressure (+6.5).
  • rook to h3 develops smoothly.
  • Precise: bishop to c2 is the top choice (+6.4).
  • You win a piece — the queen.
  • If instead O-O, then Rh3 and you win the queen.

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