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Attack on the uncastled king: queen to b1 (a1·4)

c9-05691
Puzzle rating: 1172Theme: 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

9. Qxb1 Bc7 10. Nb4 Ne4+ 11. fxe4

Why it works

  • Great move! queen to b1 keeps the pressure (+5.5).
  • Spot on — knight to b4 (+5.6).
  • Precise: pawn to e4 is the top choice (+5.9).
  • You win a piece — the queen.
  • If instead Bf5, then g4 and you win the queen.

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