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Castling-960 to the rescue on a1 (d1)

c9-04086
Puzzle rating: 1050Theme: 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

8. O-O-O Bf4+ 9. e3 Bxb3 10. Bxa8+

Why it works

  • Great move! king to c1 keeps the pressure (+2.7).
  • Well found: pawn to e3 (+2.7).
  • Precise: bishop to a8 is the top choice (+2.7).
  • You reach a winning position (+2.7).
  • If instead O-O, then Bxa8 and you win the rook.

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