Challenge #200: Sudoku Solver

[nini]

My solutions for Beginner and Intermediate:

[Greg_Murray]

Solution attached

[danilang]

Beginner and Intermediate.  Now if only I could solve them in my head, like Lord Vetinari.

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Dan

[dombaikamilla]

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Beginner and Intermediate Solutions

[Blake]

All set on the advanced solution. I put my iterative macro/data cleansing in a standard macro to keep the canvas clean. Fun challenge! 

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Top Level





Iterative macro guts

[salima]

Beginner Level,

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[carlosteixeira]

Here my solution Beginner and Intermediate.

Beginner

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Intermediate

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[JORGE4900]

I completed the beginner solution yesterday; here is the intermediate one today. Fun challenge. The basic idea is to add 45 on all rows and columns; this would ensure that the numbers 1-9 are only being used once per box.

First generate the possible solutions by row or record ID; then find the unique number not already used on other solutions and plug it in.

By the way, I was blown away with the macros and R snippets solving the advanced one; I always enjoy looking at your workflows.

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[JustinBabbitt]

Beginner and Intermediate solutions attached

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Macro: 

[sonyakasenkramer]

I built a solver for the advanced challenge, and used it for the intermediate. But more importantly: I built a working macro!! 

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