CTCMerdock
Merdock has 5 puzzles in the Variant Sudoku catalog, most often with Region Sum Lines, Parity Lines and Renban. 5 were solved on Cracking the Cryptic. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here5All 9×9
First puzzle2025Within and Without
Latest puzzleJan 2026Method to the Madness
On Cracking the Cryptic5videos
On Variant Sudoku
Favourite rules
Puzzles by Merdock
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
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