suguru puzzle   tectonic puzzel

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The Thermometer Puzzle has everything for logic puzzle enthusiasts. The rules are simple, but require insight and a subtle approach. Guarantee for hours of puzzle fun. Check our page with Thermometer puzzle solving tips.

You get a grid full of thermometers of different length. You have to leave them empty or fill them partially or completely with mercury. The numbers on the edges indicate how many cells you have to fill in each row and column. Use only your logic and perseverance to solve these puzzles.

Each thermometer is filled up from the base (circular part) regardless the orientation of the thermometer. A correct solution is a puzzle with cells that are filled or have a cross!

Follow the steps below to solve a sThermometer puzzle from our database.

  • LEV: choose your starting level. In brackets is the number of available puzzles.
  • PUZ: enter the number of the Grand Tour Puzzle you want to solve.
  • START: this puzzle is now loaded.
  • Click on a cell to fill the thermometer with mercury.
  • Click on filled thermometer to change into a thermometer with a cross if you are sure it should NOT be filled
  • Click on a thermometer with a cross to change it to the starting position.
  • Click on to check the puzzle.
  • SOL: choose SOL to show the solution of the puzzle with white blocks.