Thanks! One question: does your algorithm account for the possibility that a non-border square could have a lower odds of being a mine when you reach the last-

Thanks! One question: does your algorithm account for the possibility that a non-border square could have a lower odds of being a mine when you reach the last-resort safest guess approach? It looks like you only consider the odds of mines in the borders, but not that a complete unknown square could have lower odds. You do mention the situation where you know that particular square has no mines, but not where you know the odds are lower than in any of the border squares. It's pretty rare, but in my minesweeper obsession days I would occasionally see it happen. Edit: upon further reflection, it's actually pretty common in the early stages, esp. in lower difficulty games. You will occasionally on the first click get a high-ish number and are much better off clicking a non-neighbor as the next guess. You must be doing this or couldn't achieve 50%, I'd guess.