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Attack on the uncastled king: queen to b4 (a4)

c9-03650
Puzzle rating: 1091Theme: 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

15. Qxb4 Qa6 16. g4 c6 17. bxa6

Why it works

  • Great move! queen to b4 keeps the pressure (+3.4).
  • pawn to g4 develops smoothly.
  • Precise: pawn to a6 is the top choice (+3.5).
  • You win a piece — the queen.
  • If instead c6, then g3 and you win the bishop.

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