Old Yu-Gi-Oh! Reference Documents
Most of these date to 2004, while The Wayback Machine didn't start archiving UDE's site until 2006. With Goat being set between those two years, we can infer that what is the same between the two sources was likely true in 2005. These documents were taken from a few surviving angelfire sites--it was common back in the day for people to share these documents with the dueling public--sites I can no longer locate.
netrep4.pdf
netrep43.pdf
netrep44.pdf
tourneyrules.pdf
Thunder Dragon for Zero.
If you know how Google caching works (it saves snapshots of search results even if the sites they point to go down) and you use correct Boolean operators (literally surround the phrases in your search queries with "___________________" and let certain words stand alone), like ["curtis schultz" "thunder dragon" 0 yugioh] you too can save time arguing with a TO.