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Castling-960 to the rescue on a8 (b8·2)

c9-15566
Puzzle rating: 1340Theme: Castling 960: the strongest move is to castle — drag the king onto its rook.
h1g2f3e4d5c6b7a8
Black 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.

Black to move — find the best continuation

Solution & explanation

Main line

20... O-O-O 21. Qc1 Qe2 22. Ra3 Rd1

Why it works

  • Best move. king to c8 is exactly what the engine plays (+5.3).
  • queen to e2 develops smoothly.
  • A natural move: rook to d1.
  • You win decisive material (+6.1).
  • If instead Qc1, then Qe2 and you stay on top.

About this position

These pieces come from starting position #859.

Explore position #859

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