Quantum Chess
Play
How to play
Manual
Puzzles
Bots
Blog
Black
to move
Game over
Play again
Review
White
to move
Settings
Appearance
Dark
Light
System
Board theme
Board
Coordinates
Files a–e and ranks 1–5 on the edge squares
Probability readout
Bar and percentage on pieces in superposition
Legal move hints
Dots for moves, rings for captures
Motion
Superposition shimmer and measurement pulse
Flip board
Play from Black's side
Quantum engine
Automatic
Qiskit when the server is running, otherwise in-browser
Qiskit
Statevector.evolve and .measure on the server ·
uvicorn src.api:app
Checking…
In-browser
JavaScript port, verified against Qiskit, works offline
Always available
Bots
Play like a human
The bot pauses a moment before each move, as a person would
Instant
The bot replies the moment you move
Reset to defaults
Done