AlphaZero has still not faced off against Stockfish on a level playing field, where the Stockfish operators can actually choose optimal settings. And the Leela

AlphaZero has still not faced off against Stockfish on a level playing field, where the Stockfish operators can actually choose optimal settings. And the Leela effort, while very interesting, has not managed to reproduce a better-than-Stockfish chess player using the AlphaZero paper. There is a decent chance that the AlphaZero authors somehow p-hacked, perhaps inadvertently, to get their seemingly impressive results. Until the AlphaZero paper can be reproduced, or a fair competition occurs, I think Stockfish should still be considered the best chess-playing program.