What is the logical criterion ? (Posted on 2005-06-03)

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| O | # | x | @ | # | O |
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| @ | O | O | x | x | @ |
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| @ | x | O | # | # | @ |
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| # | @ | @ | x | O | # |
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| # | O | O | x | x | # |
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| x | @ | # | O | @ | x |
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	Submitted by pcbouhid
Rating: 3.8333 (6 votes)
Solution:	(Hide)
The four symbols were placed in this order : O, @, # and x, starting in the upper left corner, and ending in the lower right corner, in a "diagonal way". Numbering the cells in the sequence that they are filled, you'll see at once the pattern. --------------------------------- | 01 | 03 | 04 | 10 | 11 | 21 | --------------------------------- | 02 | 05 | 09 | 12 | 20 | 22 | --------------------------------- | 06 | 08 | 13 | 19 | 23 | 30 | --------------------------------- | 07 | 14 | 18 | 24 | 29 | 31 | --------------------------------- | 15 | 17 | 25 | 28 | 32 | 35 | --------------------------------- | 16 | 26 | 27 | 33 | 34 | 36 | ---------------------------------

	Subject	Author	Date
	Symmetry	Rebecca Jaffe	2005-08-30 03:06:01
	No Subject	trey	2005-06-09 03:06:01
	this is it	David	2005-06-08 04:04:57
	To Robby and Lisa	pcbouhid	2005-06-03 19:26:32
	Solution	Lisa	2005-06-03 16:08:35
	Solution	Robby Goetschalckx	2005-06-03 14:19:56
	re: Is this as straightforward as it looks?	Lisa	2005-06-03 13:00:10
	re: Is this as straightforward as it looks?	Syzygy	2005-06-03 12:59:52
	Is this as straightforward as it looks?	scott	2005-06-03 12:52:42