Hello Dear Chessfriends,
Years a go an American Chessmaster( I do no want to mention his name for the sake of accuracy) prepared a special variation to be used against Jose Raul Capablanca and studied the variation for many years and kept it as a secret weapon.
Years later he had the chance of playing a game against Jose Raul Capablanca he was so sure about a win and the accuracy of the variation and being convinced of a win started to play but he lost the game unexpectedly as Jose Raul Capablanca found the solutıon of the variation in a short time like 15 minutes.
This reminds me of the saying " Chess is a big game no matter How Good You are there
is always someone better.
Regards to All