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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?

See The Solution Submitted by K Sengupta    
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Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): computer solution | Comment 4 of 5 |
(In reply to re: computer solution by Jer)

Daniel's list also included

 2  9  4
 3  7  1
 6  5  8

  Posted by Charlie on 2009-08-18 16:33:30
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