Notes on this puzzle
Mine Finder #5304 hides 99 mines in a 30×16 field of 480 cells, a density of 20.6%. Near the end you may need the total number of mines to decide the last cells.
The board starts with 9 cells already uncovered, 2% of the safe ground, so the first deduction is waiting for you. Under the cover, 81 safe cells touch no mine at all, 119 show a 1 and 105 show a 2; 76 cells carry 3 or more, and the highest number in the field is 6. 14 of the mines lie along the border of the field.
Where to beginKeep an eye on the mine counter; on this field the final pocket is often settled by the total.