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Castling-960 to the rescue on a1 (b1·5)

c9-19686
Puzzle rating: 1340Theme: Castling 960: the strongest move is to castle — drag the king onto its rook.
a8b7c6d5e4f3g2h1
White to move — find the best continuation

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The tactical motive

Castling 960: the strongest move is to castle — drag the king onto its rook.

White to move — find the best continuation

Solution & explanation

Main line

24. O-O-O Qf7 25. Rd4 Bb3 26. Kd2

Why it works

  • Great move! king to c1 keeps the pressure (+2.7).
  • rook to d4 develops smoothly.
  • A natural move: king to d2.
  • You reach a winning position (+2.9).
  • If instead Qf7, then Rd4 and you stay on top.

About this position

These pieces come from starting position #925.

Explore position #925

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