This is the free version of Black Box Touch, the far-and-away best Black Box game for the iPhone. All of the features of the full version are available every tenth game (except pause and saving in-progress games). The remaining games have these limitations:
• The grid size is always 5x5, with four or five balls
• Only one ball type--the standard ball--is available
• Rays and flares are not shown
• Momentary indicators are not available
• The in-progress game is not saved when you end your session
• It is not possible to pause a game

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Full Version Description

Black Box Touch takes the hide-and-seek/strategy board game Black Box to a new level. Your challenge is to pinpoint a number of balls that have been hidden in the grid, by shining rays of light into the grid and observing what happens to them. Race against the clock for a high score, or just sit back and revel in the challenge.

With mesmerizing OpenGL graphics, several different modes of play, four ball types, and a wide range of difficulty levels, Black Box Touch is by far the most engaging and entertaining Black Box game available for the iPhone.

Play a quick game while you're stuck waiting somewhere, play a longer one when you want to relax and zone out, or when you're itching for a mental challenge. Set indicators and rays to "momentary" and test your memory, or set them to "always on" for a low-demand play style that's good for learning the game quickly or for playing in a relaxing, meditative state.

Achieve a wide range of styles of play and difficulty with:
• grid sizes from 5x5 to 10x10
• hidden ball counts from 4 to 12
• standard balls plus 3 other optional ball types, each with different ray interactions
• Ray drawing options: never, momentary, always
• Indicator drawing options: momentary, always
• Entry/exit flares: never, momentary