Attack on the uncastled king: pawn to b5 (a4·9)
c9-02686naming 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
9. axb5 O-O 10. Rg4 Kh8 11. Nc2
Why it works
- Great move! pawn to b5 keeps the pressure (+4.1).
- rook to g4 develops smoothly.
- Precise: knight to c2 is the top choice (+3.9).
- You win a piece — the bishop.
- If instead O-O, then Rg4 and you win the bishop.
About this position
These pieces come from starting position #121.
SP-121 · RampartScout — A wing-file king (b or g) and at least one corner knight: the rarest of the six families, just 72 positions.
Explore position #121Similar puzzles
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