Attack on the uncastled king: bishop to a3 (b2·2)
c9-06860naming 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
13. Bxa3 Bxc6 14. O-O-O h5 15. Qg1
Why it works
- Great move! bishop to a3 keeps the pressure (+5.0).
- king to c1 develops smoothly.
- Precise: queen to g1 is the top choice (+4.5).
- You reach a winning position (+4.5).
- If instead Bxc6, then Qd2 and you stay on top.
About this position
These pieces come from starting position #646.
SP-646 · 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 #646Similar puzzles
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