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Attack on the uncastled king: queen to b7 (a8·9)

c9-08233
Puzzle rating: 1107Theme: 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

3. Qb7 Rb8 4. Qa6 b5 5. c4

Why it works

  • Great move! queen to b7 keeps the pressure (+3.0).
  • Well found: queen to a6 (+3.1).
  • A natural move: pawn to c4.
  • You reach a winning position (+3.0).
  • If instead Rb8, then Qa6 and you stay on top.

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