Variant Sudoku

Nicolas Duhail

Nicolas Duhail has 14 puzzles in the Variant Sudoku catalog, most often with Region Sum Lines, Modular Lines and Killer. 14 were solved on Cracking the Cryptic. Every puzzle below links to its original home, so the setter gets the credit and the traffic.

Browse in Explore
Puzzles here14All 9×9
First puzzle2026Ubiquitous
Latest puzzleAug 2026Querulous
On Cracking the Cryptic14videos

Favourite rules

Region Sum Lines7Modular Lines3Killer3Equal Sums2Renban2Non-Repeat2

Puzzles by Nicolas Duhail

Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.

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