I do half the level on my first run. Yes, easier than danielben dragonsweeper, more similar to usual minesweeper. It is a bit weird there is no sound at all.
yes dragon sweeper is a frank inspiration (as I meant to acknowledge above, but managed to type the name of my own game instead, for a nonsensical mathematical concept : my game is halfway between it self and another game. Kind of zeno's paradox in reverse).