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Attack on the uncastled king: pawn to a4 (b3·14)

c9-07494
Puzzle rating: 1066Theme: 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

8. bxa4 c6 9. O-O O-O 10. axb5

Why it works

  • Great move! pawn to a4 keeps the pressure (+4.0).
  • Spot on — king to g1 (+3.7).
  • Precise: pawn to b5 is the top choice (+4.1).
  • You win a piece — the knight.
  • If instead b4, then a3 and you win the knight.

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