Framed shows the full board; Playable area crops to the squares
Column letters and row numbers
Lowercase letters on bottom row; numbers on left column
Rotate the board 180°
Shows translucent squares on the board after each move
Classic bordered squares or Modern full-square highlights
Off, Classic rings, Classic square highlights, or Modern
selected-square, dot, and ring previews
When Move preview is Off, use a Classic ring, Classic square, or
Modern selected-square highlight
Shows candidate destinations while selecting a piece.
Classic capture previews or Modern selected-square, dot, and ring
previews
Classic bordered analysis squares or Modern full-square analysis
fills
Renders 8×8 games on a chess-style square grid
On-screen turn and status popups
Plays subtle sounds for moves/captures
Play mode
Launch creates and joins a room, and logs a join link in the
browser console (F12). Use the Bot section names and sides for
your online identity and seat preference. To Join/Spectate/Rejoin,
use the Lobby list.
Players
Choose Human or Bot for each side. When Bot
is selected, choose the bot level below.
Light / WhiteControls for the light side
Player 1
Dark / BlackControls for the dark side
Player 2
500 ms
Set a side to a bot to auto-play that color.
Lobby
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Account (optional)
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Uses cookie sessions on the multiplayer server (port 8788). This
panel is for testing MP4C auth and profile identity, including
country and time-zone preferences; it does not change seat tokens or
online authority rules yet.