Each move places a superposition in two cells. When a cycle forms (entanglement), collapse happens — choose which state wins.
X wins: 0 | O wins: 0 | Draws: 0
Player X: pick two cells for your quantum move
Superposition: Each move occupies two cells at once (subscript = move number). Entanglement: When marks form a cycle (A in cells with B, B in cells with C, C back in cells with A), they're entangled. Collapse: A cycle triggers measurement. The last player to move in the cycle chooses which cell their mark collapses into. Then all entangled marks collapse accordingly. Winning: After collapse, if a player has 3 classical marks in a row, they win. Lower subscript wins ties.