CTCDerek LeClair
Derek LeClair has 7 puzzles in the Variant Sudoku catalog, most often with Region Sum Lines, Multitask Clues and Sequence. 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 puzzle2026Tree Squirrel
Latest puzzleSept 2026Halo Loop
On Cracking the Cryptic7videos
On Variant Sudoku
Favourite rules
Puzzles by Derek LeClair
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
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