The Opera Game, Paris 1858
Morphy against the Duke of Brunswick and Count Isouard
Ways to play
Two players, one screen
Both sides move from the same board. Hand the phone or the mouse over after each move.
Open a shared board- Play online- Rated games against other people, on a clock. Open the lobby
- Invite a friend- A link that seats your friend at your board. Make an invite link
Questions
Is it free?
Yes. Every mode is free and there are no ads. The coffee button in the footer is there if you want to support the project.
Do I need an account?
Not to play the computer: open Play the computer and move. Online games, chat and ratings need an account with a verified email.
Does it work on a phone?
Yes. Phones get a lighter hall with fewer effects, so the pieces still move smoothly. Tap a piece, then tap its square.
Which engine plays against me?
Stockfish 19, running inside your browser at 8 levels from Novice to Master. Stockfish is GPL-3.0 software; the link to its source is in the settings menu.
Can I take a move back?
Against the computer, yes: switch on training mode when you start a new game and an Undo button appears in the game panel. Online games have no undo.
Can two people play on one device?
Yes. Open a shared board and both sides move from the same screen, one after the other.
Can I speed up the fights?
Yes. The settings menu has 1×, 2× and Instant speeds, and switches for the sound and for the camera zoom on captures.
How do ratings work?
Each time control has its own Glicko-2 rating, starting at 1500. The leaderboard lists players with at least 10 rated games at that time control, a settled rating and a game in the last 30 days.
What happens to chat messages?
In-game chat is deleted 30 days after the game ends and private messages after 365 days. A reported message is kept for the moderator until the report is closed and then removed with the rest.
Can I watch a game?
Yes. Anyone with the link to an online game can watch it live, every capture included.