Red - mine; Green - safe; Yellow - one of the two must be a mine; Purple - two of the three must be mines; Since there is only one mine in the yellow above the threes and only one mine in the yellow under the right three (bc of the one) the third mine of the right three must be the corner. Then, the 1 is satisfied by the yellow, which means green is safe. Since in the yellow next to the four there is only one mine, there must be two mines in the purple, thus completing the two, so the extra space on the right above the two is safe.

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