CTC6×6Claude Opus 4.6
Claude Opus 4.6 has one puzzle in the Variant Sudoku catalog, most often with Irregular, Count and Kropki. One was solved on Cracking the Cryptic. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here1All 6×6
First puzzle2026Spotlight Fracture
Latest puzzleFeb 2026Spotlight Fracture
On Cracking the Cryptic1video
On Variant Sudoku
Favourite rules
Puzzles by Claude Opus 4.6
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
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