Logic Masters Deutschland e.V.

Primal Roar

(Published on 21. January 2023, 23:16 by Die Hard)

This is puzzle 3 of 3 involving prime ratios:

  1. Prime Real Estate.
  2. Primal Fear.
  3. Primal Roar.
It is recommended that you attempt these in order.

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.

Play on CTC

Solution code: All digits in row 8 and row 9

Last changed on on 19. March 2023, 01:38

Solved by Dentones, Xalothros, JayForty, Jlrice2, aaalexx
Full list

Comments

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.

Difficulty:5
Rating:N/A
Solved:5 times
Observed:7 times
ID:000COQ

Puzzle variant Math knowledge

Enter solution

Solution code:

Login