Today I examined provably fairness of Crypto-Games' Roulette and it checked out. Good job, guys! Not so many gambling sites can boast of a provably fair roulette.
Regarding the Minesweeper, now I'm doing good with opening 4 boxes (6 mines game), but I always fail with opening a 5th one. ... Well, not always. Just managed to do that while writing this post:

No way I was going to open a 6th one this time.