CTCDavid Workman
David Workman has 3 puzzles in the Variant Sudoku catalog, most often with Killer, Kropki and Region Sum Lines. 3 were solved on Cracking the Cryptic. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here3All 9×9
First puzzle2025Candy Wrapper
Latest puzzleJun 2026Just Sum Long Lines
On Cracking the Cryptic3videos
On Variant Sudoku
Favourite rules
Puzzles by David Workman
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
Is this you? Send a correction, ask for a feature, or have your puzzles taken out of the catalog.Contact us