OTBSync Beta
Physical Board, Digital Play

Turn any board
into a chess computer.

Place your phone looking at the board. Move the pieces, and they instantly play online. Hear your opponent's replies out loud.

64
squares tracked
8×/s
camera sampling
0
downloads needed
OR

Requires the board:play scope. No sign-up needed.

No Lichess account? No problem.

Broadcast

New to OTBSync? Read the FAQ →

Step 1 · Pair

Use your phone
as the camera.

Scan the code. Your phone acts as a wireless camera, while the game runs right here on this device.

1Scan the QR with your phone
2Prop the phone so the whole board is in frame
3Align the corners to play
Waiting for your phone…

Starting camera…

Prop the phone up so the whole board is in frame, then return to your desktop to play. Keep this tab open.

CAM 01
Drag each green corner precisely onto the playing area · Esc to close
Step 2 · Calibrate
Drag the green handles to the four outer corners of the board (a1-h8).
New game

Find an opponent

Time control
Broadcast
Broadcast
♟
Opponent
black
to move
–:–
CAMERA
♙
You
white
to move
–:–
Waiting…
no read
OTB Analysis
Study the position without losing sight of the board.
White to move
Moves & evaluation The active line stays in focus.
Position sourceImport a game or start from any position.
Import PGN
Load a position (FEN)

After loading a custom position, set up the physical board and hit Sync.

Board controlsCorrect or share the current game.
TrackingInspect the live recognition pipeline only when needed.
no read