Weighted OBL Tree: All unique OBL cases organized by slice count; cases are weighted by how often they’re likely to appear in an OBL solution, with more likely cases in the middle.
Faces List: Learn the names and mnemonics for every face.
Cases List: Best algs, alternate algs, and related cases for every OBL case, including mirrors.
Other Resources: A collection of other helpful resources, for OBL or for Square-1 as a whole.