90s Memes

There was a board before you started playing. But if you clicked on a mine of that board a new one was generated where that field didn't contain a mine. Thus it's ensured that the first click would always start the game. That first field could be one of any possible number from blank to 8.

Of course hitting a blank was preferred, but never guaranteed. And an 8 was very rare. I don't think I've ever seen that outside of custom boards.