CTCPossible Spam Risk
Possible Spam Risk has one puzzle in the Variant Sudoku catalog, most often with Japanese Sums. One was solved on Cracking the Cryptic. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here1All 9×9
First puzzle2026Unlucky 13
Latest puzzleJul 2026Unlucky 13
On Cracking the Cryptic1video
On Variant Sudoku
Favourite rules
Puzzles by Possible Spam Risk
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
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