-UI is garbage as usual, I'm not reading all that shit in how to
-This is a big one: I can't move "instantly", if I mash A and D, the knight waits for the animation to complete, which makes the whole thing feel extremely slow. Play bejeweled if you have the chance, see how you can drag shit as fast as you want and it will work. Then play a clone of it, where you have to wait for the drag animations, you'll see what huge difference that is. This pretty much makes this game unplayable for me.
-Didn't find an insta-drop button
-Music doesn't fit, I'd expect some offshoot of  https://www.youtube.com/watch?v=NmCCQxVBfyM

Had high expectations. Didn't like what I found. Hopefully you'll make it good eventually.