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Attack on the uncastled king: pawn to f4 (g3·15)

c9-01578
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

17. gxf4 a5 18. Ng2 axb4 19. Qd2

Why it works

  • Great move! pawn to f4 keeps the pressure (+4.5).
  • Spot on — knight to g2 (+3.8).
  • A natural move: queen to d2.
  • You reach a winning position (+3.7).
  • If instead a5, then Ra3 and you win the knight.

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