Neighbour-balanced Sudoku
(Published on 23. February 2026, 21:17 by WardBeullens)
Standard Sudoku rules apply. Additionally, every pair of digits occurs as (orthogonal) neighbours in the grid the same number of times.
Solution code: Last two rows
Last changed on on 24. February 2026, 09:53
Solved by Shuhua Milk, Gribba Bibba, Reaperskill
Comments
on 24. February 2026, 09:53 by WardBeullens
Add "orthogonal".
on 23. February 2026, 21:21 by WardBeullens
added online solving tool tag
