At first, I was a bit lost and didn’t understand, but then I read the hint on the game’s page. That made things clearer, and I was able to play until I won. I suggest adding hints like that directly in the game.
It’s a good game, and I see potential in it once there’s more variety in the choices, levels, and difficulty.
The way the controls work, using ASD, confused me a few times. I usually play games that use WASD, so when I pressed S, for example, it sometimes felt like I wanted to move one tile to the side instead of to the last tile.