Oskar's counter-step maze
This puzzle has a red piece of matter and a blue piece of anti-matter running in the same maze. Can you find a way to force them to collide?
Unite the red and blue dots by moving just the red dot. The blue dot follows the red dot, but moves in exactly in the opposite direction. A move is only permitted if the path is clear for both dots.
concept & puzzle design - © Oskar van Deventer - 2003
puzzlescript implementation - © Matthieu Haller - 2021