1. Base
Normal Sudoku rules apply.
2. MinMax
Digits inside a light gray box must be lower than adjacent outside digits, while digits inside a dark gray box must be higher.
More MinMax Sudoku puzzles
This puzzle appears as puzzle #51 in my book
128 Handcrafted MinMax Sudoku.
If you enjoyed solving it, you'll find
127 more handcrafted MinMax puzzles
in the full volume, ranging from
beginner-friendly introductions to
expert-level challenges.
Solution code: Digits in row 3 (left to right).
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.