Very interesting and somewhat deep Minesweeer twist, liked it very much, would be back for more :) Thanks!

UPD.: Actually, no, I won't be. Cause it is TOO ADDICTIVE. And you're deing quite deceptive when you say that the average play is "a few minutes"... :) You should greenlight it in Steam, give us leaderboards and be prized. This idea is simply awesome. I'll compose music for you and we'll conquer the world.