Attack on the uncastled king: pawn to b4 (b2·3)
c9-21051naming tag (square·N)Shuffle Rating 1390Theme: 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. b4 axb4 10. cxb4 Qb6 11. Ne7+ Kb8 12. Nxg8
Why it works
- Great move! pawn to b4 keeps the pressure (+2.2).
- Well found: pawn to b4 (+2.5).
- Precise: knight to e7 is the top choice (+2.5).
- Best move. knight to g8 is exactly what the engine plays (+2.4).
- You win a piece — the rook.
- If instead axb4, then cxb4 and you stay on top.
About this position
These pieces come from starting position #699.
SP-699 · BastionGuard — King shifted to c or f, knights kept clear of the edges — 168 positions in all.
Explore position #699Similar puzzles
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Attack on the uncastled king: bishop to d2 (c1·3)
Attack on the uncastled king: pawn to e3 (d2·13)
Attack on the uncastled king: knight to g7 (f5·20)
Attack on the uncastled king: knight to f5 (g3·14)
Attack on the uncastled king: knight to f6 (h5·7)
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