OddMax
Solve online in F-Puzzles (thx bbutrosghali!)
Here is another OddMax Sudoku
Place the digits from 1 tot 9 in every row, column and 3x3-block. A digit in a circle appears exactly one time in the four surrounding cells and it is the highest odd digit in those four cells.
Solution code: Row 4, followed by row 6.
on 14. July 2022, 09:44 by Richard
Added link and tag for online solving. Thx bbutrosghali!
on 19. July 2021, 01:40 by Nick Smirnov
@bbutrosghali, because I like Penpa better. After implementing sudoku mode I find Penpa much more convenient for playing. Also, f-puzzles has very small pencil marks and one cannot resize a grid. Now I use f-puzzles only to convert puzzles in CTC App (which I find the most convenient tool for solving sudokus), in December 2020 there was no such option.
on 3. March 2021, 18:05 by bbutrosghali
Can't figure out why @Nick Smirnov chose Penpa instead of F-Puzzles, so here is the link for the latter:
https://f-puzzles.com/?id=y8lge8tk
on 2. December 2020, 14:14 by Nick Smirnov
Penpa:
https://git.io/JIILR
on 10. June 2016, 09:46 by ohm0123
Thank you. Richard.