About the game
Grey thermometers wind through the grid. From the round bulb to the tip the numbers always rise, and that tells you a lot about which numbers fit where.
Rules
Fill the grid so that every row, every column and every 3×3 box holds each number from 1 to 9 exactly once.
Along each grey thermometer the numbers rise from the round bulb to the other end, each one bigger than the one before.
Every puzzle has exactly one solution, so it can always be found by reasoning, without guessing. A number that breaks a rule turns red.
How to play
- Tap a cell, then a number below the board (or type it).
- Along a thermometer the numbers rise from the bulb to the tip.
- Not sure? Switch on notes and pencil in the options.
- Languages
- EN · DE
- Works on
- Phone, tablet, computer
- Players
- Just you