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Attack on the uncastled king: queen to a4 (d1·5)

c9-08348
Puzzle rating: 1098Theme: 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. Qxa4 O-O 6. O-O c6 7. Qa2

Why it works

  • Great move! queen to a4 keeps the pressure (+4.5).
  • king to g1 develops smoothly.
  • A natural move: queen to a2.
  • You win a piece — the bishop.
  • If instead O-O, then O-O and you win the bishop.

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