So anyway, I ran 10k or 100k boards for all of these, and searched for three types of guess patterns: the standard 50-50 pattern, the 50-50 square, and two 50-50s in a line (with unknown squares in the form XX XX). Here are the numbers I got for the various boards:
Code: Select all
name h w m difficulty
Beginner (new minesweeper) 9 9 10 0.05
Beginner (official) 8 8 10 0.10
Intermediate 16 16 40 0.19
Expert (beta minesweeper) 24 24 99 0.41
Huge (narkomania) 30 40 200 0.52
Expert 16 30 99 0.78
Expert Plus (minesweepers.org) 24 30 149 0.93
Alptraum (minesweeper league) 24 36 180 1.09
Challenge (narkomania) 24 40 200 1.16
Wahnsinn (minesweeper league) 30 40 250 1.28
Int-density size WR 100 110 1719 1.35
Expert-density size WR 100 100 2063 4.41
24x30 density WR 24 30 225 4.96
16x16 density WR 16 16 95 5.07
16x30 density WR 16 30 160 5.13
9x9 density WR 9 9 42 7.92
8x8 density WR (old) 8 8 37 9.47
8x8 density WR (new) 8 8 49 17.94