Related to AlphaZero is the Leela Chess Zero project, an independent project people from across the glob contribute CPU/GPU resources to: https://lczero.org/#tab-elo-estimates. One of the main developers on LCZero is also one of the Stockfish developers.
It's been having an interesting time in various competitions, and much like the match you point out, it makes some decidedly more "human" moves, little stabs to try and get out of a draw situation that Stockfish won't due to its hard-coded biases. Here's an interesting game from TCEC 14 https://www.youtube.com/watch?v=rhI4DKGSjtk Ultimately it came second to Stockfish, but that was the highest placing it has had so far, and they keep refining and improving it all the time.
Stockfish is currently leading, but all games vs. LCZero so far have been draws, and the winner is decided by the "Superfinal": a series of 100 games between the two top engines of the round-robin stage. Stockfish won TCEC 14, but with both engines improved since then it's still uncertain who will win.
Contribute to the go site of leela zero and play using it with gui. Not sure how to start chess part.
But open one is better than closed one as we can have other experiment such Facebook go, darkgo and minigo etc. Not sure there is any similar chess open net engine.
It's been having an interesting time in various competitions, and much like the match you point out, it makes some decidedly more "human" moves, little stabs to try and get out of a draw situation that Stockfish won't due to its hard-coded biases. Here's an interesting game from TCEC 14 https://www.youtube.com/watch?v=rhI4DKGSjtk Ultimately it came second to Stockfish, but that was the highest placing it has had so far, and they keep refining and improving it all the time.