That intro scene is the most amazing thing I have ever seen, combined with the music. Very clever and even poetic.
The story only keeps getting better, even the joke about the pigeon hole is funny.
For a game about math this game is very good. At the start I did think there definitely was some bruteforcing going on for me. At the end when there were less options and more varied options I liked it more since I could think about all the options in my head instead of trying them all.
Great ending