Henry Ernest Dudeney/Puzzles and Curious Problems/277 - Tessellated Tiles

by : $277$

 * Tessellated Tiles
 * Here we have $20$ tiles, all coloured with the same four colours.


 * Dudeney-Puzzles-and-Curious-Problems-277.png


 * The puzzle is to select any $16$ of these tiles that you choose and arrange them in the form of a square,
 * always placing same colours together -- white against white, red against red, and so on.