Chess. More correctly Western Chess. Even more correctly English Chess. England colonized India and changed the "original" rules.
Really? Quote from the Wikipedia article on Chess: "Around 1200, the rules of shatranj started to be modified in southern Europe".
Oral history, from the movie The Chess Players (Shatranj Ke Khilari) 1977. My bad. I like oral history. I believe it is the most faithful history.
Thinking about it, it's entirely possible that the English re-imported the modified game to India.
Chess was invented in India, but changes kept flowing back into India through the centuries. And yes the modern western version, was introduced to India during the colonial period, however prior to and concurrent to that, India has its own version, and appeared to have a professional body of chess players (old east India company papers listed the deaths of prominent Indians, ‘chess player’ was the profession listed on several, also I ran across a book translated from Sanskrit to English written by an Indian which ‘adapted’ the original Indian openings to western chess)
”Am I really watching Carlsen play Grischuk? Or am I watching Stockfish play Stockfish? At the top level of chess it is the latter for the first 20 moves minimum”
I have followed many games between Carlsen and Grischuk, and in none of them the first 20 moves minimum were anywhere near that. For example in the game Carlsen won in Shamkir last year, the players had left theory by move 8, and from there it was just an entirely human and interesting game where Carlsen outplayed Grischuk.