Attack on the uncastled king: pawn to b3 (a2·18)
c9-06229naming tag (square·N)Shuffle Rating 780Theme: Chess960 twist: use the unusual starting setup of the pieces.
White to move — find the best continuation
The tactical motive
Chess960 twist: use the unusual starting setup of the pieces.
White to move — find the best continuation
Solution & explanation
Main line
10. axb3 O-O 11. Rxa4 Rxa4 12. bxa4
Why it works
- Great move! pawn to b3 keeps the pressure (+5.1).
- Spot on — rook to a4 (+4.8).
- Precise: pawn to a4 is the top choice (+5.1).
- You win a piece — the rook.
- If instead O-O, then Rxa4 and you win the bishop.
About this position
These pieces come from starting position #460.
SP-460 · ThroneGuard — A centre-file king with no knight on the edge; a position and its mirror twin always share this family.
Explore position #460Similar puzzles
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