Congruency
(Published on 18. April 2026, 21:53 by gren)
Rules:
Normal Sudoku rules apply.
Modular Summation Arrows: An arrow cell with digit N sees at least N cells in each of the indicated directions, and the digits in all those cells (exact total count: number-of-arrows × N) sum to a number whose last digit (unit digit) is N. For example, a cell with two arrows and digit 3 may point to the digits 123 and 458 respectively, which together sum to 23, ending in 3.
Solution code: Row 5, from left to right.
Last changed on on 19. April 2026, 11:14
Solved by SKORP17, efnenu, Elliott810, jhrdina
Comments
on 19. April 2026, 11:14 by gren
fixed tags
Last changed on 19. April 2026, 11:15
on 19. April 2026, 10:30 by Elliott810
Absolutely brilliant (and pretty hard) puzzle! Thank you:)
---
Glad you enjoyed it! /gren
