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Attack on the uncastled king: pawn to a5 (b4·17)

c9-08684
Puzzle rating: 1057Theme: 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

7. bxa5 O-O 8. c5 Nc7 9. Nb3

Why it works

  • Great move! pawn to a5 keeps the pressure (+4.8).
  • pawn to c5 develops smoothly.
  • A natural move: knight to b3.
  • You win a piece — the bishop.
  • If instead f5, then c5 and you win the bishop.

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