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Attack on the uncastled king: pawn to a4 (b3·12)

c9-06685
Puzzle rating: 1051Theme: 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

7. bxa4 Qc8 8. Qc1 Qxh3+ 9. Bg2

Why it works

  • Great move! pawn to a4 keeps the pressure (+4.1).
  • queen to c1 develops smoothly.
  • Strong! bishop to g2 is the sharp choice (+4.0).
  • You reach a winning position (+4.0).
  • If instead Qc8, then Bg2 and you win the bishop.

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