Normal sudoku rules apply. Each row, column and 3x3 box needs to contain the numbers 1 to 9 exactly once. With the additional rule:
Thermometer
Digits along thermometers need to strictly increase, where the lowest digit is in the bulb.
Background
This sudoku was sent with the invitation card for our wedding. It was an optional challenge for our guests.
Solution code: All nine digits from row 5
on 11. January 2025, 02:32 by kross
Congrats on the wedding. I thought I would breeze through this puzzle, but it was a little trickier than I at first thought. Nice puzzle.
on 16. October 2023, 22:28 by kenferguson
Thanks for sharing!
on 4. October 2023, 21:52 by sujoyku
Thank you for sharing these nice puzzles, ThunderKey! I wish you a good marriage and all the best for the future.
on 4. October 2023, 19:57 by SenatorGronk
link to f-puzzles: https://f-puzzles.com/?id=yoq5wuy5
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