LMisajo4002
isajo4002 has 3 puzzles in the Variant Sudoku catalog, most often with Zipper Lines, X-Sums and Killer. Every puzzle below links to its original home, so the setter gets the credit and the traffic.
Puzzles here3All 9×9
First puzzle2026X-Zippers
Latest puzzleSept 2026Butterfly
Logic Masters solves120Average rating 85%
On Variant Sudoku
Favourite rules
Puzzles by isajo4002
Newest first. “Play here” opens the puzzle in Variant Sudoku, loaded live from the setter’s own link.
LM
LMX-Zippers
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