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Attack on the uncastled king: queen to a3 (a1·4)

c9-11889
Puzzle rating: 1610Theme: 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

16. Qa3 Kb7 17. Bxc6+

Why it works

  • Great move! queen to a3 keeps the pressure (+5.7).
  • Spot on — bishop to c6 (+6.0).
  • You win a piece — the queen.
  • If instead Kb7, then Bxc6+ and you win the queen.

About this position

These pieces come from starting position #823.

Explore position #823

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