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Super Number Square (Posted on 2003-08-19) Difficulty: 4 of 5
A super number square has the following properties:
  1. In each row, the rightmost number is the sum of the other three.
  2. In each column, the bottom number is the sum of the other three.
  3. Within each NW-SE diagonal line, the last number (bottom rightmost) is the product of the other numbers.
For example, if you have a square that looks like:
A B C D
E F G H
I J K L
M N P Q
you know that A+B+C=D, C+G+K=P, AFK=Q, EJ=P, and so on.

Construct a super number square in which the highest number in any position is 57, and the second number in the top row is a 5 (all numbers are positive integers).

  Submitted by DJ    
Rating: 4.4167 (12 votes)
Solution: (Hide)
fwaff had a solution without programs here and Charlie's program is here.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Puzzle Thoughts 2K Sengupta2024-01-29 06:19:40
Puzzle Thoughts K Sengupta2023-06-23 01:38:11
Some ThoughtsPuzzle ThoughtsK Sengupta2022-09-13 02:17:35
solutionEric2003-09-05 02:17:34
Questioncan it be shown ...Charlie2003-08-20 08:32:47
Solutionre: Solution - no trial and error or computersfwaff2003-08-20 08:07:52
The solution isn't hard if you...Dino2003-08-20 05:00:59
SolutionDJ2003-08-19 18:52:28
Solutionsolution -- analysis plus trial and errorCharlie2003-08-19 15:53:55
QuestionSpecifications?Gamer2003-08-19 15:27:24
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