2
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sudoku-determinant have been described well here : The Determinant Sudoku

I have created another one.
Number in the center is the value of the determinant
Numbers 0 to 10 are the values of the determinant

enter image description here

What's the solution for this sudoku?

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5
  • 2
    $\begingroup$ Are you sure this has a solution that can be found purely through logical deduction? I can't find a place to start. $\endgroup$
    – Deusovi
    Commented Oct 10, 2017 at 1:59
  • $\begingroup$ is that negative 2? $\endgroup$
    – Jasen
    Commented Oct 10, 2017 at 3:39
  • $\begingroup$ @Deusovi : Sorry, Not purely logical deduction. The puzzle need some computer calculation. $\endgroup$ Commented Oct 10, 2017 at 3:53
  • $\begingroup$ @Jasen : No, it is 2. $\endgroup$ Commented Oct 10, 2017 at 3:54
  • 2
    $\begingroup$ That may be why people aren't starting the puzzle. It seems like writing a computer program to solve this would be the only way to do it, and that doesn't really make a fun puzzle. $\endgroup$
    – Deusovi
    Commented Oct 10, 2017 at 5:15

2 Answers 2

5
+100
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After a painful coding, I think the answer is :

[9,7,4 | 3,1,5 | 8,2,6]
[1,2,3 | 4,6,8 | 5,7,9]
[5,6,8 | 2,7,9 | 1,3,4]
-----------------------
[2,1,5 | 6,3,4 | 7,9,8]
[3,4,7 | 9,8,2 | 6,1,5]
[6,8,9 | 1,5,7 | 2,4,3]
-----------------------
[4,9,6 | 5,2,1 | 3,8,7]
[8,5,2 | 7,4,3 | 9,6,1]
[7,3,1 | 8,9,6 | 4,5,2]

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2
  • $\begingroup$ Could you please put the answer in a more human-readable format? $\endgroup$
    – boboquack
    Commented Oct 10, 2017 at 8:31
  • $\begingroup$ wait 1 day to get the bounty prize. $\endgroup$ Commented Oct 10, 2017 at 9:41
2
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Just to add to the existing answer the solution is actually not unique, there are exactly two (almost trivially similar) answers

In addition to Nurnani Tati's answer:

9 7 4 | 3 1 5 | 8 2 6
1 2 3 | 4 6 8 | 5 7 9
5 6 8 | 2 7 9 | 1 3 4
------+-------+------
2 1 5 | 6 3 4 | 7 9 8
3 4 7 | 9 8 2 | 6 1 5
6 8 9 | 1 5 7 | 2 4 3
------+-------+------
4 9 6 | 5 2 1 | 3 8 7
8 5 2 | 7 4 3 | 9 6 1
7 3 1 | 8 9 6 | 4 5 2

there is also

9 7 4 | 3 1 5 | 8 6 2
1 2 3 | 4 6 8 | 5 7 9
5 6 8 | 2 7 9 | 1 3 4
------+-------+------
2 1 5 | 6 3 4 | 7 9 8
3 4 7 | 9 8 2 | 6 5 1
6 8 9 | 1 5 7 | 2 4 3
------+-------+------
4 9 6 | 5 2 1 | 3 8 7
8 5 2 | 7 4 3 | 9 1 6
7 3 1 | 8 9 6 | 4 2 5

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