This is puzzle 3 of 3 involving prime ratios:
Normal Sudoku rules apply. Digits in cages cannot repeat and must add up to the sum in the top left corner of the cage. Adjacent digits on a blue line must be in a prime ratio (eg: 2:4=2, 3:9=3, 1:7=7, etc). Each of the digits 1 through 9 must appear on the long blue line at least once. Digits adjacent to a dot containing a prime number must differ by at least that prime number.
Solution code: All digits in row 8 and row 9
on 19. March 2023, 01:38 by Die Hard
Added tags.
on 31. January 2023, 08:08 by Die Hard
You can most definitely solve the puzzle without bifurcation. Solving it requires complex logic, but you do not need to guess.
on 30. January 2023, 14:16 by aaalexx
Is it possible to solve it without bifurcate? i got stuck at one point and the only way to solve it was to try to guess one path
on 30. January 2023, 03:51 by Die Hard
Revised suggested order of puzzles.
on 29. January 2023, 10:17 by Die Hard
Updated introduction.
on 22. January 2023, 11:30 by Die Hard
Updated image to show the new constraint.
on 22. January 2023, 11:11 by Die Hard
Added extra constraint to simplify the solve.