Andrea Gilbert, a Software Engineer living in Barton-Le-Clay, England created a series of "tilt mazes" in which you are to imagine that a marble (shown here as a red circle) is on a board that you can tilt only to the north, south, east, or west. (You can't do anything tricky like tilt it southeast.) Once you tilt the board, the marble will roll (horizontally or vertically) until it hits a barrier. There's no way you can stop the marble in the middle of its roll. The object is to roll the marble onto or over every blue square in the maze.
UP ARROW - Move ball up
DOWN ARROW - Move ball down
RIGHT ARROW - Move ball right
LEFT ARROW - Move ball left
N - Next level
P - Previous level
R - Restart current level
Javascript version by L.F.Estivalet - October 2020