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Sweet Sixteen (Posted on 2005-06-12) Difficulty: 3 of 5
16 checkers are placed on an 8 by 8 checkerboard, no two checkers on the same square. Show that some four of the 16 checkers are on the vertices of a parallelogram with positive area.

See The Solution Submitted by McWorter    
Rating: 4.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: oopsMcWorter2005-07-31 22:37:28
oopsTan Kiat Chuan2005-07-31 19:17:36
re: I think this is a solution...McWorter2005-07-31 18:15:11
SolutionI think this is a solution...Tan Kiat Chuan2005-07-31 16:28:40
Some Thoughtsre: How about this?McWorter2005-07-24 22:43:02
Some ThoughtsHow about this?Liz2005-07-19 03:48:15
Solution idea, but not there yet.Larry2005-07-13 02:38:42
I'm not Jonathan Chang --- Really!McWorter2005-06-21 17:10:06
15-piece counter-exampleTristan2005-06-12 19:36:20
re: Direct me to a WebsiteMcWorter2005-06-12 18:48:20
QuestionDirect me to a WebsiteCharley2005-06-12 18:05:57
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