Challenge #200: Sudoku Solver

[kelvin_law1]

Here is my beginner and intermediate solution:

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For the advanced one, I have modified my intermediate solution into a iterative macro, so that's why the solution looks much more simple here:

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[nicoleserrafero]

Beginner solution solved! Knew i could use regex just had to look up some syntax!

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Step 1: Tokenize 6 digits into rows
Step 2: Tokenize digits into the 9 rows
Step 3: Check against solution!

[Reesetrain2]

All,

Beginner solution posted, more to follow...

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[estherb47]

Advanced solution.

I found this article really helpful https://dev.to/aspittel/how-i-finally-wrote-a-sudoku-solver-177g

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Had to go with a macro after all. Now to implement more pattern recognition/replacement to make a more comprehensive solution.....

[BenMoss]

A fun one to try and solve live to the world. Solution for all three parts.

(Y)

[jmt214]

Solved beginner, intermediate, AND advanced!!

I wasn't sure I would be able to create a solving algorithm, but it came to me while walking my dog. I'm really happy with the solution!

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All 3 SolvedMacro for Parsing the Puzzle from the string of digitsMacro for solving the parsed puzzle

[delilah]

Solve all the three levels. Can't say that my solution is very effective one and some part definitely needs improvement but iterate macro should be used anyway.

[Jess2]

My beginner solution is attached.

[PaulRB]

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Beginner level complete... 

[jasperlch]

Not an elegant way to do it at all. In fact, my solution is quite ugly... using a lot of brute force and having copied and pasted many steps 9 times (should have used a macro). But considering it is 11pm now, I will take it as long as it gives the right answer.