Yes this is about a position which is forced mate in 258 moves !!
https://lichess.org/study/jI02VBrK/oFUYO2Td#0
The Tablebase ie: The god of endgames decided that this game is a win after 258 moves!!! Go check out the game and tell me can you win it quicker ?? This position was discoverd by Lewis Stiller, 1991. I hope you like it ;)
