Quantum Rubik's Cube: The Ultimate Puzzle Challenge
Physicists and mathematicians from the University of Colorado Boulder have developed a 'Quantum Rubik's Cube' as part of a bet, replacing traditional pieces with quantum particles. This quantum version allows for infinite possible states due to the unique property of 'the square root of a permutation,' making it infinitely complex yet solvable. The puzzle can be simplified by measuring the state of the particles or using special particles like identical fermions to maintain a finite state space, akin to classical puzzles with unusual geometries.