Hard · 10×10 grid
10×10 Thermometer Puzzle
The 10×10 thermometer puzzle is where solving becomes a real workout. Expect long chains in which one filled cell spreads through several thermometers and lines. Some puzzles include a few pre-filled cells (on a tinted background) to guarantee a single solution.
About 10×10 thermometer puzzles
| Grid | 10 × 10 = 100 cells |
|---|---|
| Difficulty | Hard |
| Typical solve time | 8–20 minutes |
| Shapes | Straight or curved thermometers |
| Solutions | Exactly one, checked by our solver |
Tips for 10×10 puzzles
- Work on two neighbouring lines together when one line alone gives nothing.
- Use the remaining count setting to keep the arithmetic easy.
- If you get stuck, a smart hint names the row and column that settle the next cell.
New to the game? Read how to play, or study the solving strategies. Other sizes: 4×4 · 6×6 · 8×8 · 12×12 · 15×15.