Easy · 6×6 grid

6×6 Thermometer Puzzle

The 6×6 thermometer puzzle is the classic starting point. Every 6×6 puzzle here can be solved with the basic techniques: empty and full lines, filling toward the bulb, and finishing lines by counting. You never need to guess.

About 6×6 thermometer puzzles

Grid6 × 6 = 36 cells
DifficultyEasy
Typical solve time1–3 minutes
ShapesStraight or curved thermometers
SolutionsExactly one, checked by our solver

Tips for 6×6 puzzles

  • Start with clue 0 and clue 6 lines.
  • Apply the squeeze: if a row needs 5 of 6 cells, most long thermometers in it are nearly full.
  • Click a satisfied clue to fill the rest of its line with air.

New to the game? Read how to play, or study the solving strategies. Other sizes: 4×4 · 8×8 · 10×10 · 12×12 · 15×15.