Attack on the uncastled king: rook to a8 (a1·11)
c9-25568naming tag (square·N)Shuffle Rating 1760Theme: 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
19. Ra8+ Rb8 20. Rxb8+ Kxb8 21. Qb7#
Why it works
- Great move! rook to a8 keeps the pressure (#2).
- Well found: rook to b8 (#1).
- Strong! queen to b7 is the sharp choice (#).
- The line ends in a forced mate in 3.
- If instead Rb8, then Rxb8+ and you win the rook.
About this position
These pieces come from starting position #707.
SP-707 · BastionGuard — Off-centre king (c/f), no knight on the a- or h-file.
Explore position #707Similar puzzles
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