The lookup shelf.
- Cross-language glossary — Go terms in English · Japanese · Korean · Chinese, so you can study and search in any of them.
- Ranks: kyu (student, counts down 30k→1k) then dan (master, 1d→7d amateur; pro dan is a separate scale). See study-paths for what to study at each.
- Rules variants: Japanese (territory) vs. Chinese (area) scoring, plus AGA and Ing — they almost always give the same winner; the main practical difference is how you count and handle dame/komi. Primers being added.