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Attack on the uncastled king: queen to b7 (a8·3)

Shuffle Rating 970Theme: 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

6. Qb7 a5 7. Qa6 e5 8. Qb5

Why it works

  • Great move! queen to b7 keeps the pressure (+2.6).
  • queen to a6 develops smoothly.
  • Precise: queen to b5 is the top choice (+2.4).
  • You reach a winning position (+2.4).
  • If instead a5, then c5 and you stay on top.

About this position

These pieces come from starting position #274.

SP-274 · ThroneGuard — A centre-file king with no knight on the edge; a position and its mirror twin always share this family.

Explore position #274

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