OML-IZ Search

Free Black Box Puzzle Online

Share this page to Google Classroom

Determine where the hidden balls are in the box, by observing the behaviour of light beams fired into the box from the sides.

Click in a square around the edge of the box to send a beam into the box. Possible results are 'H' (the beam hit a ball dead-on and stopped), 'R' (the beam was either reflected back the way it came or there was a ball just to one side of its entry point) or a number appearing in two squares (indicating that the beam entered one of those squares and emerged from the other).

Click in the middle of the box to place your guessed ball positions. When you have placed enough, a green button will appear in the top left; click that to indicate that you think you have the answer. You can also right-click to mark squares as definitely known.

Courtesy of Simon Tatham's Puzzle Collection via the MIT license.

More Puzzles Games & Fun Stuff
Safecracker, Binary, Blackbox, Bridges, Blue Cube, Dominosa, Galaxies, Haunted Mirror Maze, Ken Ken, Light up, Loners, Magnetic Field, Map, MineSweeper, Netwalk, Pattern, Pearls, Range, Rectangles, Signpost, Skyscrapers, Slant, Slitherlink, Sudoku, Tents, Unequal etc.

We hope that the free math worksheets have been helpful. We encourage parents and teachers to adjust the worksheets according to the needs of the child. For more difficult questions, the child may be encouraged to work out the problem on a piece of paper before entering the solution. We hope that the kids will also love the fun stuff and puzzles.

We welcome your feedback, suggestions, comments and questions about this site; please submit your feedback via our Feedback page.

OML-IZ Search
Share on Facebook Visit our Facebook page