Played this for 5 hours, and I've been enjoying it quite a lot. But holy hell, this shit is hard. 5 pegs and above becomes impossible for my pea brain. I like challenging puzzles, but this is difficult. Especially that ranking system, whatever the hell that is, it makes everything so stressful. I would like to play it more, but I feel like I can't progress at all since I simply cannot for the life of me fathom those harder challenges. Even 4 pegs is bit of a stretch at times. Still, the game is very well done regardless, so you've done well. The massive difficulty spike is my only complaint.
you don't need to do the 5 peg or higher puzzles! you can beat the game and do everything with just 4 pegs. and the ranking mode is also optional.
i agree, the harder puzzles and the ranking mode are stressful! when i play, i usually just play 3 and 4 peg puzzles and relax. sometimes i do the 5 peg puzzles but they can take me 5-10 minutes and sometimes i just want to relax!