![]() ![]() ![]() Note that the second condition is more specific: we've narrowed down the location of the mine. The bottom 1 indicates that there is one mine out of B and C. The top 1 indicates that there is one mine out of squares A, B, and C. Yet it is possible to make progress here: No single square tells you anything certain. At the bottom of the board is another 1, and it's next to two squares. Below is a 1, but it's next to three squares, and any one of them could be a mine. There's a 2, but it's next to three squares: two of them must contain mines, but we don't know which two. I only have to look at one number at a time to make progress in the game. And since there's only one unexplored square nearby, we know that square must be a mine. The 1 in the upper left says there's only one nearby mine. What I like to see is stuff that's easy to reason about: All that painstaking effort to find the mines, all for naught! (If you don't get blown up, you're still wasting your time playing Minesweeper. And if you guess wrong, you get blown up. But that's not nearly as bad as almost clearing the entire board, then running into this at the last minute: Even the first move is a gamble: you click on a random square and hope you don't get blown up (though some versions offer the option of an easy start). What frustrates me about Minesweeper is that so much is left to chance. ![]()
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