A puzzle where you collect matching dominoes.
Each problem to solve is a pattern of dominoes for you to start from. The goal is to collect all the dominoes by sliding matching numbers next to each other.
On the rules web page, the beginner problem above looks like this:
0|5 0 1 - - 4|6 4 5 4|2 4|1
The example problem and solution look like this:
5 2|4 5 2|4 5 2|4 5 2*4 - - - * 2 2|6 2 2>6 2 2<6 2 2*6
Donimoes is an original puzzle designed by Don Kirkby.
Other Domino Puzzles
The only other domino puzzle I could find is called either Dominosa or Domino Solitaire. You start with a grid of numbers, and you have to lay the dominoes on them. It was invented by O.S. Adler in 1874. There’s an interesting proof that this puzzle is NP-hard.
Reiner Knizia published some puzzles called Domino Knobelspass that are very similar to Dominosa.