Domino puzzles of 'Quadrille' type.
 
You have to solve a so-called 'Quadrille' puzzle, which means that you have to use the given dominoes and the given area they cover and make the dominoes 'fit' in the following sense:
 
The given area is divided into coloured 2x2 squares. You have to rearrange the dominoes such that each square carries four half-dominoes of same value (e.g. all showing the number 5). (The coloured 2x2 squares become more obvious once you move the dominoes; the squares are painted onto the playing board).
You can place the dominoes temporarily outside the given area.
 
Note that in contrast to the two-player domino game rules, adjacent domino halves do not necessary have to show the same numbers!
 
You win when you manage to rearrange the dominoes according to these rules. Remember: the final covered area has to be of the same shape as the one given at the start, and all 2x2 squares must show four times the same number.
 
The default variant is very easy and only meant as a warm-up for the other variants, which use the full set of 28 tiles.
 
 
More freeware as well as real puzzles and games at my homepage http://karl.kiwi.gen.nz.