How to play Undead (puzzle game, aka Haunted Mirror Maze) - YouTube
39 Puzzle Collection (Simon Tatham) - OpenStore
This is from the Simon Tatham's Portable Puzzle Collection, it is supposed to not have any guesswork involved, so how can i solve this? : r/Minesweeper
Simon Tatham's Puzzles on the App Store
Simon Tatham's Portable Puzzle Collection - Games for the Brain - OSS Blog