Description:

(1888) I played a final game in London with my friend Johannes. He managed to gather a few enemies in his lifetime, and he knew one of them is after his head, so he challenged me for a small life extension. He would even win if damned Doll wasn't activated in the middle of our match.

And no, what you can see on the left was not the game we played that day. Something else is hidden below this Chess game.

Solution:

The chessboard has 64 cells, corresponding to the 64 characters of Base64 (A-Z, a-z, 0-9, +, /), going from bottom left up, and right after each column. The coordinates, then, become characters that reads TELEv1SEdcOMP3t1 TiONINWHichTwote3n AG3+RSf/r0MPa+ /nEMARecHOSENT0fIghT. Removing the + and /, and make it more readable yields "Televised competition, in which two teenagers from Panem are chosen to fight.", a reference to The Hunger Games. Using the numbers below as indexes, with the first number the word and the second one the letter, yields Margana, or Anagram backwards.