Black Box
Locate the hidden balls by firing laser beams into the box and analyzing their paths.
Locate the hidden balls by firing laser beams into the box and analyzing their paths.
Link to this puzzle by: Game ID Random Seed
Black Box is a logic puzzle where players deduce the hidden positions of atoms by analyzing how laser beams interact with them inside a sealed grid.
The objective is simple yet deceptively difficult: determine the locations of all atoms by interpreting the results of the laser beams.
Black Box is a captivating deductive logic game that challenges players to uncover the hidden positions of atoms inside an invisible 8×8 grid—without ever seeing them directly. Originally devised by Eric Solomon in the 1970s and popularized as a board game, Black Box has since become a beloved digital puzzle games.
The gameplay is elegantly simple yet deeply strategic. Around the perimeter of the black box are numbered entry points. By firing laser beams (or “rays”) into the box from these points, players observe how the beams behave: they may be absorbed (marked “H” for hit), reflected back to the entry point (“R”), or deflected and exit at a different location (indicated by matching numbers on two edge squares). These outcomes are governed by precise rules based on the proximity of hidden atoms—each interaction revealing subtle clues about their locations.
Using only this indirect feedback, players must deduce the exact positions of all atoms. A correct solution requires careful reasoning, pattern recognition, and the elimination of impossibilities—hallmarks of classic logical deduction. Players can place tentative guesses inside the grid, right-click to mark confirmed empty squares, and submit their solution when ready.
Determine where the hidden balls are in the box by observing the behavior of light beams fired into it 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 corner; click it to indicate that you think you have the answer. You can also right-click to mark squares as definitely known.
Be prepared to think critically and use logic to deduce the positions of the balls based on the information you gather from the light beams.