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Attack on the uncastled king: pawn to b4 (a3·18)

c9-08114
Puzzle rating: 1066Theme: 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. axb4 O-O-O 10. Kc1 Nhg6 11. b5

Why it works

  • Great move! pawn to b4 keeps the pressure (+4.6).
  • king to c1 develops smoothly.
  • A natural move: pawn to b5.
  • You win a piece — the bishop.
  • If instead O-O-O, then O-O-O and you win the bishop.

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