Logic Masters Deutschland e.V.

Rules

1. Normal Sudoku rules apply.

2. Thermometers appear throughout the grid. Digits on each thermometer must strictly increase from the bulb to the tip.

More Thermometer Sudoku puzzles
This puzzle is featured in my book 128 Handcrafted Thermometer Sudoku. If you enjoyed solving it, you'll find 127 more handcrafted Thermometer puzzles in the full volume, ranging from beginner-friendly introductions to expert-level challenges.

Discover the series
128 Handcrafted Sudoku Variants is an ongoing series where each volume explores a new Sudoku variant. Every book gradually progresses from easy 4×4 puzzles to expert 9×9 challenges, making the series suitable for both newcomers and experienced solvers.