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Attack on the uncastled king: rook to a7 (a3)

c9-07011
Puzzle rating: 1106Theme: 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

11. Rxa7 Bxg1 12. Ra5 Nc7 13. Nf5

Why it works

  • Brilliant! The rook on a7 is a sacrifice that works — you stand better (+2.9).
  • rook to a5 develops smoothly.
  • A natural move: knight to f5.
  • You win a piece — the queen.
  • If instead Bxg1, then Ra5 and you win the queen.

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