Computer Chess
A curated list of links for computer chess enthusiasts — engines, AI, GUIs, ratings lists, tablebases, test suites, and more. Links maintained by club members.
Found a broken link? Email us at WestportChessClub@gmail.com.
Watch live computer chess
See the best engines compete at TCEC or Chess.com Computer Chess Championship.
Watch Leela Chess Zero (and other Lc0 flavors) get tested on Twitch or YouTube at @edosani, @potato_chess, @brinansee, Mark Young, and sometimes @westportchess.
Free AI chess engines
Leela Chess Zero (Lc0) — a neural-network chess engine.
Download the latest release (use "blas" for CPU-only, "cuda" for NVIDIA GPUs, or "OpenCL" for other GPUs). See the installation guide. You'll also need to download a neural network. Here's a list of the strongest Lc0 networks.
Engine rankings & ratings lists
Opening books for engine testing
Stefan Pohl's opening books are a good starting point.
Endgame tablebase (EGTB) downloads
Free computer chess GUIs
Arena · Banksia · Cute Chess · Lucas Chess · Nibbler (made specifically for Lc0) · SCID · Zentropy
Free computer chess utilities
Tactical test suites
Use a test suite to measure how well your engine handles tactical or endgame positions: