I don't speak russian so this was a very weird game for me lol. Because of this I'm not sure where exactly the game ends or not, since it also has multiple endings apparently. When you press play against pronin the dude with the bricks tells you that the mode is not available (at least that's what I gathered from the translation). After some time I managed to reach a scene where that dude appears and it says you can now play against Pronin. Then the game restarts from the bed again. Even though it's not an ending, it sends you directly to the start again. So I considered that the ending for "Play for Pronin", and the 2nd loop, which has a different ending if you do the exact same I considered it as "Play against Pronin". Don't know if these are actually the endings, or the things I was intended to do for the run since there aren't any rules, so if I did or understood something wrong please feel free to reject the run and also explain what am I supposed to do lol.

TL;DR: This game has too many endings, I did the two longest endings possible where you do almost everything possible in the game. Don't know if they were what the categories intended.