Notes on this puzzle
Mine Finder #5108 hides 10 mines in a 9×9 field of 81 cells, a density of 12.3%. Every safe cell here can be decided by looking at one number at a time.
The board starts with 38 cells already uncovered, 54% of the safe ground, so the first deduction is waiting for you. Under the cover, 33 safe cells touch no mine at all, 21 show a 1 and 11 show a 2; 6 cells carry 3 or more, and the highest number in the field is 5. 3 of the mines lie along the border of the field. Corners hold 1 of them; a corner cell has only three neighbours.
Where to beginFlag only when you are sure; then use the chord tap on satisfied numbers to clear ground quickly.