From the reddit thread, there's some information on how the basic wallet was solved.: https://docs.google.com/document/d/1nUAhlC_n21ZLZcRAHpLw9G--...
(I would never in a million lifetimes have guessed that bip thing. How do people even know this?)
Looking at 426 252 813 1535 1935 1603 1068 1479 1168 756 878 1083 I sure as heck would not think, oh that's bip39 indexes.