Sliding Puzzle 5x5

This is my design of a 5 x 5 sliding puzzle game in the size 15 cm x 15 cm.
It was designed for my mother because she works in a residential facility that looks after pensioners and she wanted to have a puzzle for the residents.

I created the model once as a single-sided with only numbers and once as a double-sided with numbers and letters.

I hope you like the design.