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Attack on the uncastled king: bishop to b5 (d3·2)

sf-u-0052
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

18. Bxb5 Qxa2 19. Ke2 Qb1 20. Qa4

Why it works

  • Great move! bishop to b5 keeps the pressure (+1.9).
  • king to e2 develops smoothly.
  • Precise: queen to a4 is the top choice (+2.1).
  • You win a piece — the rook.
  • If instead Qxa2, then Qa4 and you win the rook.

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