Femten-spill

## Description

_Femten-spill_ is an adaptation of the sliding block puzzle game known as
Fifteen in English. The game contains two variants of the game: one with eight
numbers on a 3×3 grid and one with fifteen on a 4×4 grid. Both work in the
same way with the objective being to moved around the blocks so that the
numbers appear in the correct order. The game is played by typing in the
number of the block that is to be moved.

Femten-spill