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Attack on the uncastled king: queen to b4 (b1)

c9-05285
Puzzle rating: 1054Theme: 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

13. Qb4 Qc7 14. Qxf4 Qc3 15. Qd4

Why it works

  • Great move! queen to b4 keeps the pressure (+2.5).
  • Spot on — queen to f4 (+2.5).
  • Strong! queen to d4 is the sharp choice (+2.6).
  • You reach a winning position (+2.6).
  • If instead Qc7, then Qxf4 and you stay on top.

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