Spel | Omnido

Omnido (emphasis on the first syllable) is a new Swedish number puzzle created by Jonatan Rydh. The rules are simple. The objective is to fill the grid with numbers 1-9 so that the following requirements are met:

• Two equal numbers may not be placed right next to each other.
• Each pair of two different numbers must occur exactly once somewhere in the square when it is completed.

A pair consists of two numbers adjacent to each other horizontally or vertically. Diagonally adjacent boxes are NOT considered adjacent in this regard.

There is only one unique solution to an Omnido.