So, I was playing around, not really sure of what I was doing. I started polymorphing, got a baby white dragon, spider, and snake so that was interesting. Then.. I found the Sokoban level. Now at the time I had no idea what I was doing, so I just moved things around. I also thought that leaving and coming back would fix things. Not so much. Heh. Thinking you supposed to actually finish that puzzle (smart I'm not), I just let that character die. For the sixtieth time. Yeah, for some reason that character wouldn't die. I feel silly though, because I feel I could've done so many stupid things with an undying character.
Luckily I have found that spoiler page and now know that you don't really have to finish Sokoban, so that's good. I'm still not the best player ever but I'm learning. Maybe one day I'll get to dungeon level twenty..