Entropy miracle 3
(Published on 27. January 2026, 09:59 by fractalminding)
Normal sudoku rules apply. Each 2x2 box in a grid has contain low digit {1,2,3}, middle digit {4,5,6} and high digit {7,8,9}.
This is the third sudoku in the Entropy Miracles series. You can find the others in my profile. All of them use the Entropy rule and have only six starting digits, with no additional clues or constraints. Each puzzle in this series is designed to have a purely logical solution without bifurcations, but be aware that the solving path may be unusual and sometimes tricky. Due to the strict conditions of the concept, the difficulty curve may not always feel smooth and can include unexpected turns. Enjoy solving!
Solution code: Row 1 (9 digits)
Comments
on 2. February 2026, 04:08 by rmm466ss
I have really enjoyed your entropy puzzles. This was very smooth and a nice amount of difficulty. Thanks!
on 31. January 2026, 16:16 by Mad-Tyas
Very smooth solve with nice steps! My favorite in the series.
on 28. January 2026, 10:21 by oskode
A real pleasure to solve, thank you!
on 28. January 2026, 09:49 by Qodec
Really cool. Experience with global entropy makes this a lot easier.
on 28. January 2026, 09:19 by Snookerfan
Very nice! I really like global entropy and this puzzle was so smooth that I have to give it just 2 stars for difficulty. Thanks
on 27. January 2026, 21:35 by Exigus
Lovely. Felt both harder but still smoother than the last one. Some really nice deductions to be had in the mid-game. Thanks!
Reply:
Thank you! I'm glad you liked it.
on 27. January 2026, 11:14 by fractalminding
difficulty changed
on 27. January 2026, 11:07 by SirWoezel
Fun puzzle, but probably closer to 3 stars than to 5.
Reply:
This sudoku is definitely harder than the previous one. But the previous one was rated 4 stars instead of 3. In the end, I gave it 5 stars just for fun. Thanks for the solving and the feedback.
