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Attack on the uncastled king: bishop to a3 (b2·6)

sf-u-0261
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

7. Bxa3 c5 8. Be2 O-O 9. dxc5

Why it works

  • Great move! bishop to a3 keeps the pressure (+6.8).
  • bishop to e2 develops smoothly.
  • Precise: pawn to c5 is the top choice (+6.7).
  • You win a piece — the queen.
  • If instead c5, then Be2 and you win the queen.

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