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Attack on the uncastled king: queen to b4 (b1)

Shuffle Rating 780Theme: Chess960 twist: use the unusual starting setup of the pieces.
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

15. Qxb4 a5 16. Qb2 Ke7 17. Bd3

Why it works

  • Great move! queen to b4 keeps the pressure (+5.2).
  • queen to b2 develops smoothly.
  • Precise: bishop to d3 is the top choice (+4.9).
  • You win a piece — the knight.
  • If instead a5, then Qb2 and you win the knight.

About this position

These pieces come from starting position #673.

SP-673 · ThroneGuard — A central king (d or e) and two knights tucked onto inner files: the family that holds the standard array, SP-518.

Explore position #673

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