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Attack on the uncastled king: rook to b4 (b1·5)

c9-08676
Puzzle rating: 1069Theme: 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. Rxb4 O-O 8. Rg4 d5 9. O-O

Why it works

  • Great move! rook to b4 keeps the pressure (+3.3).
  • rook to g4 develops smoothly.
  • A natural move: king to g1.
  • You win a piece — the rook.
  • If instead c5, then Rg4 and you win the rook.

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