Play Biasa, the engine written for this page, or a friend on the same screen. After the game Stockfish looks over every move.
Stockfish.js 19 — Nathan Rugg, Chess.com, the Stockfish developers · GPLv3 · source & licence
Opening names and puzzles — Lichess · CC0
Pieces — cburnett (Colin M.L. Burnett, GPLv2+), chessnut (Alexis Luengas, Apache 2.0), celtic & fantasy (Maurizio Monge, MIT), rhosgfx (RhosGFX, CC0)
PeSTO piece-square tables — Ronald Friederich
