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Attack on the uncastled king: knight to a4 (c3·5)

c9-01992
Puzzle rating: 1088Theme: Chess960 twist: use the unusual starting setup of the pieces.
a8b7c6d5e4f3g2h1
White to move — find the best continuation

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The tactical motive

Chess960 twist: use the unusual starting setup of the pieces.

White to move — find the best continuation

Solution & explanation

Main line

7. Nxa4 c5 8. Naxc5 Bc6 9. O-O-O

Why it works

  • Great move! knight to a4 keeps the pressure (+6.1).
  • Spot on — knight to c5 (+6.0).
  • Precise: king to c1 is the top choice (+5.9).
  • You win a piece — the knight.
  • If instead f6, then Nac5 and you win the knight.

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