This is really, really clever! I played it like 5 times just for fun! I love how the availability of information you get is determined by your minesweeping skill, which was really cool! I was always able to figure it out, by being economical with my tile choices, but I can see how people who haven't played as much minesweeper could get stuck without all the info. I think a cool addition would be different difficulty modes that give you different number of tiles to use, so that people with more/less minesweeping skill can have a good challenge