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A comment on The Simple Example of the Double Tetris Lamp.

Re:The Simple Example of the Double Tetris Lamp by jpeggg on Tuesday July 21, 2015 @02:34AM (#9920813)
Hey, original Tetris proof guy here. Glad to see it works with two lamps! However, since the 'one of each colour' property is a necessary property for a rectangular arrangement to exist, not a sufficient one, simply having the 'same number of colours' doesn't mean that such an arrangement definitely exists. (It's pretty easy to think of an example of a set of pieces where one doesn't, but the property is satisfied).

The fact that an arrangement does exist in the two lamp case is neat though.

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Re:The Simple Example of the Double Tetris Lamp by TheRedBarron on Tuesday July 21, 2015 @10:50AM (#9922615)
Oh certainly. I thought I'd explained my thought process but what I meant was that "Since the same number of colors exists then a arrangement may exist" and given that it may a brute-force type approach was taken to confirm that one indeed does
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