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Attack on the uncastled king: queen to b7 (a8·7)

c9-07393
Puzzle rating: 1076Theme: 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

5. Qb7 e5 6. O-O-O e4 7. d4

Why it works

  • Great move! queen to b7 keeps the pressure (+4.3).
  • Spot on — king to c1 (+4.0).
  • A natural move: pawn to d4.
  • You reach a winning position (+4.6).
  • If instead e5, then Nc3 and you stay on top.

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