1

Introduction

•Quantum is a variant of the classic game of Baduk (Go). It is played on two parallel board realities, with stones that remain entangled across these realities.
•Understanding the rules of standard Baduk is a prerequisite for this rules description.
2

Parallel Realities

•In Quantum, the board exists simultaneously in two parallel realities.
•Each move places a stone at the same position on both boards, and the move must be legal on each board individually.
3

Entangled Stones

•Every stone is entangled with its counterpart in the other reality.
•When a stone is captured in one reality, its entangled counterpart is also removed in the other reality.
4

Quantum Moves

•The first two moves of the game are Quantum moves, which invert the stone's color in one of the realities.
•The two black stones placed this way are entangled with each other, and the same applies to the two white stones.
•To highlight Quantum moves, these stones are marked with orange. Even after they are captured, the positions of Quantum stones remain linked, so later moves continue to produce corresponding placements in both realities.
5

Scoring

•At the end of the game, the scores from both boards are added together. Komi is applied only once.
Current move：Black

Reality A

Reality B