Normal sudoku rules apply.
Place all the digits of pi before the 1st zero digit in the grid reading left to right across each row from top to bottom.
All cells in the red marked area must be digits of pi. If two digits of pi are orthogonally adjacent, then at least one of them must be in the red marked area.
Cells separated by a white dot must be consecutive digits.
For reference, pi is 3.1415 92653 58979 32384 62643 38327 950...
Play on F-Puzzles
Solution code: Row 1 followed by Column 2 (18 digits, no spaces)
on 29. August 2022, 05:29 by alisonsky
Took a while to understand the rules, but pretty fun after that.