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Attack on the uncastled king: pawn to a4 (b3·11)

c9-06086
Puzzle rating: 1062Theme: 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

12. bxa4 Na5 13. Nb3 Nc4+ 14. Bxc4

Why it works

  • Great move! pawn to a4 keeps the pressure (+3.2).
  • knight to b3 develops smoothly.
  • Precise: bishop to c4 is the top choice (+3.2).
  • You win a piece — the knight.
  • If instead Na5, then Nb3 and you win the knight.

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