This is a simplified Solitile puzzle with very few tiles. To return to the Solitile page, click on the "End Animation" button. The animation will loop repeatedly, so don't worry if you miss something the first time through (or the 6th time...)

The yellow boxes indicate which pair of tiles is about to be removed. You can only remove tiles in matched pairs, and only if neither tile is "blocked". To not be blocked, it must not have any tile laying on top of it (even partially), and must have at least the entire left side or the entire right side of the tile exposed (no other tile immediately against it at the same level). The goal, of course, is to get rid of all of the tiles. Most layouts (arrangements of tiles) have around 144 to 168 tiles in them. The layout in this example has only 32 tiles.