"The Most Famous Chess Problem of All Time." This video is in Spanish but understanding the language is not necessary. Also, knowing almost nothing about chess should not be a problem. A very interesting endgame study.

"Richard Reti was not only a great chess player, but also an expert composer of problems on the board. In this video I present to you what is considered by many to be the most famous chess problem of all time: White plays and makes boards in a position that seems downright lost. Can you successfully solve the exercise?"

One more thing: The best place to play chess, watch chess games, learn how to play chess, or use computer analysis to study any chess game, is at https://lichess.org/. It's totally free and there are zero ads. It also has the advantage of being the best website in the universe.