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Attack on the uncastled king: bishop to a5 (e1·11)

c9-05632
Puzzle rating: 1104Theme: 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

4. Bxa5 Bxb2 5. Nb3 Bxc1 6. Qxc1

Why it works

  • Great move! bishop to a5 keeps the pressure (+7.1).
  • knight to b3 develops smoothly.
  • Precise: queen to c1 is the top choice (+7.1).
  • You win a piece — the queen.
  • If instead Bxb2, then Nb3 and you win the queen.

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