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Attack on the uncastled king: pawn to b4 (a3·21)

Shuffle Rating 920Theme: 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

9. axb4 Bxb3 10. cxb3

Why it works

  • Great move! pawn to b4 keeps the pressure (+5.1).
  • Spot on — pawn to b3 (+4.7).
  • You win a piece — the bishop.
  • If instead Bxb3, then cxb3 and you win the bishop.

About this position

These pieces come from starting position #142.

SP-142 · ThroneScout — A knight starts on the edge (a/h) and the king sits centrally on d or e; the mirror twin stays in this family too.

Explore position #142

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