CTCAndy Petersen
Andy Petersen has one puzzle in the Variant Sudoku catalog, most often with German Whispers and Kropki. 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 puzzle2025Oh Bobbins
Latest puzzleSept 2025Oh Bobbins
On Cracking the Cryptic1video
On Variant Sudoku
Favourite rules
Puzzles by Andy Petersen
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
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