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Is it Possible? (Posted on 2024-09-06) Difficulty: 2 of 5
Is it possible to create a 3 x 3 matrix, using only the numbers -1, 0, and 1 such that all six row and column sums are distinct?

***Adapted from OSSMB 84-7

No Solution Yet Submitted by K Sengupta    
Rating: 3.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Slightly different solution | Comment 3 of 5 |
(In reply to Slightly different solution by Jer)

This proof is not complete, Jer.  It fails to rule out sums of -2,-1,0,1,2,3, where 3 and -2 are both row sums.  
  Posted by Steve Herman on 2024-09-07 17:48:40

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