About us
echo64
echo64 is the chess social app: the app for playing with people you know. You play online blitz with friends and with your group, join team game nights and championships, review your own games with engine analysis, and study with interactive opening and endgame courses and the daily puzzle. It is free, on your phone or computer.
The name comes from “echo” — the response to a move — and the 64 squares of the chessboard. It is pronounced “echo sixty-four”.
Marco Campaci
Founder of echo64 and FIDE-registered chess player. Passionate about chess and software development, he created echo64 to combine his two passions and build a space where the chess community can grow.
Official FIDE profileContact
For reports, collaborations or questions: [email protected] or write directly through the platform.
Credits and licenses
echo64 is built on free software and open data. Here is what, by whom, and under which terms.
- Analysis engine: Stockfish 18, via stockfish.js (Chess.com, LLC). GPL-3.0 license, sources and license here: Stockfish · stockfish.js · GPL-3.0
- Pieces: design by Colin M.L. Burnett (CC BY-SA 3.0 / BSD license), with modified shading. Originals on Wikimedia Commons
- Sounds: the piece knock comes from a Pixabay sample (Pixabay licence), reworked by us; check and notification sounds are made by echo64.
- Puzzles: from the open Lichess database (CC0): database.lichess.org
- Maps: data © contributors of OpenStreetMap
- Chess rules and notation: chess.js (BSD-2-Clause license). The rest of the third-party code is free software under MIT or similar licenses. chess.js