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Castling-960 to the rescue on a1 (e1)

c9-10800
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

16. O-O-O g5 17. Re4 f5 18. Ree1

Why it works

  • Great move! king to c1 keeps the pressure (+1.7).
  • rook to e4 develops smoothly.
  • Precise: rook to e1 is the top choice (+1.5).
  • You reach a winning position (+1.5).
  • If instead g5, then Re4 and you stay on top.

About this position

These pieces come from starting position #645.

Explore position #645

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