sort_key => $pretty_move,
depth => $info->{'depth' . $mpv},
score_sort_key => score_sort_key($info, $pos_calculating, $mpv, 0),
sort_key => $pretty_move,
depth => $info->{'depth' . $mpv},
score_sort_key => score_sort_key($info, $pos_calculating, $mpv, 0),