Solve the following puzzle to be rewarded with a cache. Difficulty is set for the puzzle solve, not the find. The difficulty for the find is probably a 2.5!
Rules:
1. Every row, column and box must have all numbers from 1 to 9 exactly once.
2. Numbers must increase as they move along thermometers, starting at the bulb.

Once the puzzle is completely solved, take the lowest 3 digit number within all 9 boxes, and the highest 3 digit number within all 9 boxes (separated with a comma), and enter it into the Certitude checker below.
Example entry: 001,999
You can validate your puzzle solution with
certitude.