If you want a link to the map, here it is: https://www.reddit.com/r/MCPE/comments/waezcb/my_unfinished_map_of_the_nethergames_lobby_maze/

If you work better with the instructions, here they also are: Left x3 Right x2 Left Right x3 Straight x2 Left Straight Left Straight Right x2 Straight Right Left Right Straight x3 Right Left Right x2 Left Straight Left Right x2 Left x3 Right Left x2

Hope this helps!