Online chess, played on a real board.
Liminal Chess is a handmade wooden smart board that connects directly to Lichess, letting you play live opponents online while moving real pieces on a real board. No laptop beside the board. No phone between you and the game.

The Concept
Liminal Chess lives between two ways of playing: the physical board and the online world. You get the weight of a real piece, the focus of a real board, and the reach of a global chess community. Your moves travel online and back again, but the game stays where it belongs: on the board.
The name marks that threshold. A liminal space is a place of passage between two states, and this board is the doorway between the tactile and the connected.

Made for players who miss the board.
Liminal Chess is for people who love online chess but do not want every game to feel like more screen time. It is for players who care about the feel of the pieces, the rhythm of a real board, and the quiet focus of sitting across from the game, even when the opponent is somewhere else.
The Craft
Each board is built like a piece of fine furniture, not wrapped like a piece of consumer electronics. The playing surface is made from a variety of solid hardwoods using traditional plank construction, not veneer, with the grain, contrast, and aging character of the wood treated as part of the design. The result is a board that feels substantial and tactile, meant to live in the room long after the game is over.
What makes the board unusual is what you cannot see. The entire sensing system is hidden beneath the playing surface, so the object on your table reads as a fine chess set and nothing more.

The Technology
Beneath the surface, an array of Hall-effect sensors reads the magnetic signature of each piece, square by square, so the board always knows the exact position of the game. A compact processor interprets those readings and manages the game state.
Liminal Chess connects to Lichess through its official Board API, the same interface sanctioned for physical boards. A small display on the board's edge shows the clock, the move list, and whose turn it is, so you stay oriented without looking away from the wood.

How it works
Set up the board
Place your pieces and the board calibrates to them.
Make your move
Lift and place a real piece, and the board sees it instantly.
Play anyone
A friend across the table, a player across the world on Lichess, or the engine.
Learn from it
Send a finished game for AI analysis and get a written report by email.
Features
Everything the board does, it does without getting in the way of the game in front of you.
Senses every move
- 64 magnetic sensors, one under each square, track pieces in real time
- Recognizes moves, captures, castling, and en passant automatically
- Move validation with easy recovery if a piece gets bumped
- Tells white from black by magnetic polarity
Play online or across the table
- Log in to Lichess and play real opponents over WiFi
- Challenge your friends directly, or accept incoming challenges with one button
- Face the Stockfish engine at multiple difficulty levels
- Or just play a friend in person, with moves recorded automatically
See everything at a glance
- Full-color edge display shows turn, clock, move list, and menus
- Built-in chess clock with selectable time controls
- Three-button icon navigation, no manual needed
- Distinct sounds for moves, captures, and the start and end of a game
Connected and portable
- Guided WiFi setup through an on-board hotspot, then automatic reconnection
- Web interface for settings, saved games, and device info from any phone or laptop
- Rechargeable battery over USB-C, with on-screen battery level
- Saves recent games on the device for review and export
A look at the board
Technical highlights
- Processor
- ESP32-S3, dual-core, WiFi and Bluetooth LE
- Sensing
- 64 hall-effect magnetic sensors with per-square calibration
- Display
- Full-color built-in TFT screen
- Connectivity
- WiFi 2.4 GHz, with captive-portal setup and auto-reconnect
- Online play
- Lichess integration: human opponents, friend challenges, Stockfish AI
- Power
- Rechargeable LiPo battery with onboard fuel-gauge monitoring, USB-C charging
- Game storage
- On-device saved-game library, PGN export, and web access
Join the first-run list
Liminal Chess is in prototype build, heading toward a small, numbered first run. Join the list for build updates and first access before anything goes public.