01 Jul '20 21:58>1 edit
15 ...Bc5 then the following moves. Aronian is a very strong player so this makes this game all the more remarkable.
Round 4 - Official website report
It was a day full of wins and losses, twists and turns, but still one game stood out head and shoulders above the rest. World Champion Viswanathan Anand used the black pieces versus 2nd seed Levon Aronian to create an evergreen that left all present in awe, not in the least Magnus Carlsen who called it “mind blowing”.
As the Indian Grandmaster explained afterwards, he used the preparation for his World Championship's match against Boris Gelfand from last year. A novelty on move 12 was the prelude to a series of sacrifices starting with 15...Bc5! Aronian plunged into deep thought, but was unable to solve his problems and after 16.Be2 Nde5! 17.Bxg4 Bxd4 18.Kh1 Bxg4 19.Nxf8 Anand crowned his attack with the beautiful 19...f5! and White was unable to stop the black queen from joining the attack.
https://www.chess.com/news/view/tata-steel-2013-round-4-1639