CTCLithium-Ion
Lithium-Ion has 7 puzzles in the Variant Sudoku catalog, most often with Sums, Arrow and Kropki. 7 were solved on Cracking the Cryptic. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here7All 9×9
First puzzle2025Double the Fun
Latest puzzleJul 2026Diagonal Stretch
On Cracking the Cryptic7videos
On Variant Sudoku
Favourite rules
Puzzles by Lithium-Ion
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
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