Odd one out
(Published on 26. June 2021, 23:06 by jenssteenmetz)
A wide variety of different complex and sometimes unusual types of logic are used. Also, coloring can help you during the ENTIRE puzzle.
Rules
- Classic sudoku rules apply.
- Cells surrounding a square sum to an even number.
- Cells surrounding a circle sum to an odd number.
- No number appears twice in a cage
- No two cages have the same sum (all cage sums are different)
F-puzzles
Click here to solve it online in f-puzzles
Solution code: First enter column 1 from top to bottom, then row 9 from left to right (so the solution code will be 18 digits in total)
Comments
on 2. January 2026, 01:56 by ako
THE PERFECT PUZZLE! Vastly complicated, yet not too difficult, just a marathon of deductions. Similar to a Fog-Puzzle I knew at any moment, where to look or what to look for. That gave a wonderful - would'nt say flow, but rather - "crawl" of eleven hours for just two tries. So it's a 4 on difficulty for me, but a plain twelve on BEAUTY. Thank you so much!
on 18. November 2025, 16:17 by daanhillside
Great puzzle. It took a few restarts but I'm glad I invested a couple of hours in this one!
on 29. June 2021, 16:28 by jenssteenmetz
Removed an unnecessary cage.
on 29. June 2021, 05:30 by jenssteenmetz
Slight description edit.
on 28. June 2021, 17:49 by Tilberg
Not so easy, that one! Phew. Some really surprising deductions! Thank you.
