Hi, please describe the achievements, so then we know, what to do to get them. Thanks

See the screenshot below. I tried many combos, but I always need 15 steps to solve this puzzle. However, it should be solvable supposedly in 13 steps? http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=797476024

I've completed all levels on the grid and a new level appeared. I completed that one too and nothing happened. And now every time i get in the game that final level opens and there's no way to get back to level select screen. What am i supposed to do to get the last achievement?...

I think there may be an interesting mathematics behind this game. You know, theorems, algorithms. All of game guides at the moment provide only exact solutions - it is pure cheating. However, I desire a guide which would describe heuristics and basic lemmas, some intuitions. All fun is to develop such intuitions and I'm woriking on it....

Is there any way to fully wipe save data in this game? I played the game in 2 sessions and for some reason no achievements unlocked on my second session, and i finished all levels. Now the last 18 achievements are not able to be unlocked for me. As someone who loves getting achievements this is quite bothersome to me. I have tried removing any files i can find in relation to this game, the publisher, the developer as well as disabling cloud sync and re-installing the game, this didn't work. If anyone know...