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Attack on the uncastled king: pawn to b5 (a4·31)

sf-u-0015
Puzzle rating: 780Theme: Uncastled king: the enemy king is stuck in the centre — punish it before it castles.
a8b7c6d5e4f3g2h1
White to move — find the best continuation

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The tactical motive

Uncastled king: the enemy king is stuck in the centre — punish it before it castles.

White to move — find the best continuation

Solution & explanation

Main line

20. axb5 f5 21. Bc6 e6 22. Nxf2

Why it works

  • Great move! pawn to b5 keeps the pressure (+6.4).
  • Spot on — bishop to c6 (+6.6).
  • Precise: knight to f2 is the top choice (+6.7).
  • You win a piece — the queen.
  • If instead O-O-O, then Nxf2 and you win the queen.

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