What if someone time traveled 20 years ago, and has a PC that has full access to all lichess features and databases (version 2021), can he become the World Champion?
The year is 2001, and I am 23 years old. The other me is 3 years old. The 23-year-old me is hiding from the Time Masters. How can I help the 3-year-old me become the future World Chess Champion without creating a paradox?
Meanwhile, here is an equally difficult question: White to play and win by O. Pervakov
