Leela Chess Zero

Open source neural network based chess engine

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Why Leela Chess Zero?

Lc0 is a direct open-source implementation inspired by DeepMind's AlphaZero project, and it has far exceeded its success in chess.

Self-Learning Neural Network

Lc0 uses a neural network that learned chess through self-play, resulting in a unique style, free from all human bias.

Deep Positional Insight

Leela understands long-term strategy, pawn structures, and subtle moves.

Open Source

Completely free and open source under the GPLv3.0, developed by a community of enthusiasts and researchers.

Join Our Community

LCZero is powered by a community of chess enthusiasts, programmers, and researchers.

Looking for the training site? It's here.