CTCJonas Gleim
Jonas Gleim has one puzzle in the Variant Sudoku catalog, most often with Numbered Rooms. 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 puzzle2026Numbered Rooms Sudoku
Latest puzzleFeb 2026Numbered Rooms Sudoku
On Cracking the Cryptic1video
On Variant Sudoku
Favourite rules
Puzzles by Jonas Gleim
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
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