Computers can't blunder...right?

GM smurfo
Nov 11, 2015, 4:45 AM |

The TCEC superfinal between Komodo and Stockfish is currently taking place. I have the games (a 100-game match I believe!) running in the background while I work, kind of like test-match cricket. It's somehow soothing, a silicon version of Enya if you will. I bet noone's ever used that analogy before.

Yesterday, in game 22, something amazing happened. Stockfish blundered. Stockfish, currently two games behind, was completely winning and gave its evaluation of the position as +26. Then, in two moves, it was 0.00. Really! And these guys (girls? its?) are supposed to be 3200+. If that's not what you call throwing away a win, I don't know what is.

You can see the game here. 64.Bc2 wins, although it's a long, complicated variation (and obviously not one that I found myself!). After 64.Kg4 both computers immediately recognised the draw.

(Hat tip to Mark Watkins for the link.)