Opposite side castling attacking Chess! Leela ID 11248 vs Fire 7.1

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This chess game was a great example of Opposite side castling attacking Chess! Leela ID 11248 vs Fire 7.1 in the TCEC 2018 Cup had a very tight match up until this game. Imbalances straight from the opening when black gave up a dark squared bishop for knight. Then aggressive pawn play on the K-side from fire, with an opposite side castling game evolving. Leela establishes potential threats of both a6 and b6 and also mysteriously offered e3 pawn in some variations. This pawn was taken but Fire ended up losing the exchange and after that leela fixed down pawns on light squares and invaded on dark squares with great effect. A truly fascinating and richly deep game to analyse!

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Info about Leela Zero:

Leela Chess Zero (lc0) is a free, open-source, and neural network-based chess engine and distributed computing project.

Leela Zero’s algorithm is based on DeepMind’s 2017 paper about AlphaGo Zero.[3][6] Unlike the original Leela, which has a lot of human knowledge and heuristics programmed into it, Leela Zero only knows the basic rules and nothing more.[7]

Leela Zero is trained by a distributed effort, which is coordinated at the Leela Zero website. Members of the community provide computing resources by running the client, which generates self-play games and submits them to the server. The self-play games are used to train newer networks. Generally, over 500 clients have connected to the server to contribute resources.[7] The community has provided high quality code contributions as well.[7]

Leela Zero finished third at the BerryGenomics Cup World AI Go Tournament in Fuzhou, Fujian, China on 28 April 2018.[8]

Info about Alphazero:

AlphaZero is a computer program developed by the Alphabet-owned AI research company DeepMind, which uses an approach similar to AlphaGo Zero’s to master not just Go, but also chess and shogi. On December 5, 2017 the DeepMind team released a preprint introducing AlphaZero, which, within 24 hours, achieved a superhuman level of play in these three games by defeating world-champion programs, Stockfish, elmo, and the 3-day version of AlphaGo Zero, in each case making use of custom tensor processing units (TPUs) that the Google programs were optimized to make use of.[1] AlphaZero was trained solely via “self-play” using 5,000 first-generation TPUs to generate the games and 64 second-generation TPUs to train the neural networks, all in parallel, with no access to opening books or endgame tables. After just four hours of training, DeepMind estimated AlphaZero was playing at a higher Elo rating than Stockfish; after 9 hours of training, the algorithm decisively defeated Stockfish 8 in a time-controlled 100-game tournament (28 wins, 0 losses, and 72 draws).[1][2][3] The trained algorithm played on a single machine with four TPUs.

Relation to AlphaGo Zero
Further information: AlphaGo Zero
AlphaZero (AZ) is a more generalized variant of the AlphaGo Zero (AGZ) algorithm, and is able to play shogi and chess as well as Go. Differences between AZ and AGZ include:[1]

AZ has hard-coded rules for setting search hyperparameters.
The neural network is now updated continually.
Go (unlike Chess) is symmetric under certain reflections and rotations; AlphaGo Zero was programmed to take advantage of these symmetries. AlphaZero is not.
Chess can end in a draw unlike Go; therefore AlphaZero can take into account the possibility of a drawn game.
AlphaZero vs. Stockfish and elmo

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  1. lol the suffle and ore suffle
    we need more powerful engines to tell us what this engines were doing lol

  2. Fire 7.1 has failed to recognise the strength of the white pawn duo on the a and b files.
    It looked so amateurish that it fell for a pin by the white bishop from behind the pawn on the b file
    and lost a Rook.
    Once again we see another amateurish move with the Black Queen chasing a poisoned pawn on e3.
    Leela definitely deserved the win.

  3. Of course the game is mysterious. Lots of mystery movies are set in castles.

  4. End of era high-level shuffling sci-fi chess.

  5. A labyrinthine masterwork. Thanks for guiding us through the complications with your analysis. Keep up the good work KC

  6. I am glad you are reinventing yourself and found your nitch, KC

  7. KC, I don't have time to watch your World Champ game reviews only Leela analysis videos. Are you commenting on the World champ game videos how they relate to Leela playing style? You related to Magnus taking the dark square bishops off in this video and it is interesting/instructive when you make that comparison human vs. machine style. Thanks for your insights and instructions.

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