Dominosa is a classic logic puzzle that is easy to learn and can be challenging to master. The game has a rich history, with many different names, variations, and rules. The game is usually played with a set of dominos. A grid is used to lay out all the dominos. Each turn, you take a single tile and place it on the grid in a location that is already occupied. The game ends when all tiles have been placed. You can have only one tile of each pair, and you can place them in any order. The game can be played with one or two players.