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Castling-960 to the rescue on a1 (d1·10)

c9-18568
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

20. O-O-O Rhe8 21. Be3 Qc7 22. Qxf5+

Why it works

  • Great move! king to c1 keeps the pressure (+3.5).
  • Spot on — bishop to e3 (+3.5).
  • Precise: queen to f5 is the top choice (+3.8).
  • You reach a winning position (+3.8).
  • If instead Rhe8, then Be3 and you stay on top.

About this position

These pieces come from starting position #534.

Explore position #534

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