James T.
James T. has 3 puzzles in the Variant Sudoku catalog, most often with Kropki, Region Sum Lines and Entropic Lines. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here3All 9×9
First puzzle2026Obsidian Diamond
Latest puzzleSept 2026Plain Club
Logic Masters solves45Average rating 88%
On Variant Sudoku
Favourite rules
Puzzles by James T.
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
Flawless Spade
Obsidian Diamond
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