Posted: Nov 25, 2017 5:03 pm
by Tracer Tong
It's a salutary reminder of the weaknesses of computers in playing chess, even 20 years after Deep Blue's (narrow) victory. The position I linked to is the final position of a chess puzzle created in 1912 by a W. E. Rudolph, in which white is given the seemingly impossible task of drawing. Nevertheless, in that final position, it should be obvious to even a beginner that the position is dead drawn: there is no way for black to make progress, since he's locked in behind his own pawns. Yet the latest version of Stockfish, probably the world's most powerful chess engine (and whose analysis you can find in my link), suggests black is completely winning. Older versions (I'm not sure about the more recent) of Houdini and Komodo suggest the same, as does the latest version of Fire. This isn't some isolated faux pas, either: there are very many completely drawn positions which these chess engines insist are winning for one side or the other.