Notes on this puzzle
Mine Finder #5306 hides 99 mines in a 30×16 field of 480 cells, a density of 20.6%. Some cells only give way when two neighbouring numbers are compared.
The board starts with 60 cells already uncovered, 16% of the safe ground, so the first deduction is waiting for you. Under the cover, 80 safe cells touch no mine at all, 115 show a 1 and 125 show a 2; 61 cells carry 3 or more, and the highest number in the field is 6. 17 of the mines lie along the border of the field. Corners hold 1 of them; a corner cell has only three neighbours.
Where to beginKeep an eye on the mine counter; on this field the final pocket is often settled by the total.