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Laser Reconstruction: 6 targets, 5 mirrors (Posted on 2007-12-14) Difficulty: 3 of 5
Two lasers enter a limitless space in which there are 6 targets.
One laser enters vertically downward while the other is initially horizontal from the right.

You have 5 mirrors, each of which can deflect a beam at either 45° or 135°.

Each laser beam passes through all targets only once.
Each segment of one laser beam passes exactly through 1, 2 and 3 targets
while those of the other never pass through more than two.

You may care to challenge yourself by fitting all targets into a 4 x 4 grid.
As a further challenge fit the 6 targets into a 4 x 4 grid, use the same rules but use only 4 mirrors.

Note: 1. Brian Smith's Laser Puzzle was the inspiration for this.
2. I acknowledge Brian Smith's thoughts re the use of a 4 mirror version.

See The Solution Submitted by brianjn    
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re: 4 mirrors, 4x4 grid and 5 mirrors 4x3 grid Comment 6 of 6 |
(In reply to 4 mirrors, 4x4 grid and 5 mirrors 4x3 grid by Brian Smith)

Apologies, I missed this.

Maybe we need, not an FBI/CIA screen, but a NASA shield against "alien" bugs!

I like these.  Care o add them to your game's repetoire?

  Posted by brianjn on 2007-12-26 04:32:54

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