Quantum Chess

Opponent Quantum rival

Play Quantum

Superposition, entanglement, measurement, and special quantum piece powers.

Quantum Moves Instead of moving to a single square, pieces can enter superposition, existing on multiple squares at once until measured.

Entanglement Connect two pieces through quantum entanglement. When one is measured, the other instantly collapses to a correlated state.

Measurement Force quantum superpositions to collapse into definite states. Time your measurements strategically to gain advantages.

Special Abilities Each piece has unique quantum abilities. Queens can tunnel through barriers, knights create probability waves, and pawns can exist in quantum states.

Membership

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Guest Access

Log in for full quantum mechanics. Guest mode keeps superposition and entanglement, but measurement and tunneling stay locked.

Turn: White

Normal mode active

Q badge: piece is in superposition on more than one square.
E badge: piece is entangled with an allied piece.
Quantum mode makes legal empty-square moves split the selected piece.
Capturing a quantum branch measures the target before the move fully resolves.

Player Quantum commander