All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers
Even Corners and Equal Subgrids (Posted on 2009-08-18) Difficulty: 2 of 5
Each of the capital letters in bold in this 3x3 grid is to be substituted by a different digit from 1 to 9 such that :
  • Each of A, C, G and I is even, and:
  • The sum of the digits in each of the four 2x2 subgrids is equal.
A   B   C
D   E   F
G   H   I

Disregarding the rotations and reflections, how many distinct solutions are there?

  Submitted by K Sengupta    
No Rating
Solution: (Hide)
Refer to the analytical solution submitted by Harry in this location, and the computer program aided solution submitted by Charlie in this location.

Daniel has extended the problem by disregarding the first condition, and all possible solutions corresponding to the foregoing is provided in this location.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionAnalytical SolutionHarry2009-08-18 22:32:50
re(2): computer solutionCharlie2009-08-18 16:33:30
Solutioncomputer solutionCharlie2009-08-18 16:31:33
re: computer solutionJer2009-08-18 14:05:40
Solutioncomputer solutionDaniel2009-08-18 13:07:23
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information