logfile is the file that contains a line of data for each game played. This file is in the same directory as the nethack executable binary. Each line contains several fields, separated by a space, for example: #: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 data: 3.4.3 916 0 5 6 0 28 1 20060611 20060611 1031 Wiz Gno Fem Neu paxed,killed by a boiling potion The fields are as follows: