Sudoku: Fill every row, column and marked 3x3 box with the digits 1-9.
Thermometer: Digits along a thermometer have to strictly increase from the bulb to the tip.
Entropy: The low digits (1, 2, 3), middle digits (4, 5, 6) and high digits (7, 8, 9) are defined as three different groups. In the finished grid each 2x2 box has to contain at least one digit of each group.
Have fun solving!
Solution code: Row 9 followed by column 9 (18 digits)
on 28. March 2024, 02:51 by Mikemerin
As usual, the opening moves to your puzzles are so much fun to deduce.
on 18. April 2023, 14:58 by Timwi
Play this Sudoku on Zinga: https://zinga.timwi.de/ONCNoqGjJfPfMUJfpkkVA7
Thanks for this awesome puzzle! This was my first puzzle using the global Entropy constraint. This leads to some very cool deduction chains. Great stuff!