Free Solver

Programs which generate, solve, and analyze Sudoku puzzles

Free Solver

Postby BobDingley » Wed Sep 14, 2005 12:07 pm

Hey guys i am looking for a solver, not one that just solves it for you but helps you with showing moves you can do and all that. So really i want a helper but i dont want one of those stupid trail ones that run out after 30 days, i want it to be free for public use with no payment required.

Can someone plz point me in a direction of a FREE sudoku helper to solver the puzzles.
Posts: 2
Joined: 14 September 2005

Re: Free Solver

Postby angusj » Wed Sep 14, 2005 1:21 pm

Posts: 306
Joined: 12 June 2005

Postby BobDingley » Thu Sep 15, 2005 7:56 am

Posts: 2
Joined: 14 September 2005

Postby hawaiirob » Thu Sep 15, 2005 9:24 am

For those of you who don't want to download anything, or have a Mac or Linux box (the program mentioned above requires Windows), there's an online solver here:

It can give you hints, or solve one step for you explaining which rule it used. Also it has three grid sizes, optional pencilmarks, undo, five new graded puzzles every day, and an extensive archive of puzzles.
Posts: 7
Joined: 30 May 2005

Postby Karyobin » Thu Sep 15, 2005 10:41 am

I think those 'trail' [sic] ones are stupid too. I mean, fancy spending hours writing a program to assist complete strangers to solve puzzles that no-one is making them do and then expecting them to pay for it! The sheer nerve...
Posts: 396
Joined: 18 June 2005

One of my own tools

Postby ovaltrade » Thu Sep 15, 2005 3:45 pm

My current interest is to create the fastest Sudoku solver around:!: .

This personnal project involves a lot of analysis of various strategies balanced with the programming of highly optimized algorithms. So, at some point in time, I needed a tool to quickly "see" all candidate possibilities. This turn out to be quite a useful tool which can be used for other purposes like studying step by step manual solving of any type of Sudoku puzzle. And it can find unique solutions too because it uses my Sudoku solver as a subroutine.

This tool (Ovalku) is not intended to replace any other available solver program and it has its pitfalls. It is freely available at as a main VB6 program (EXE) and its companion DLL. Unzip into a test directory and experiment by clicking Ovalku.exe !!!
Posts: 19
Joined: 03 September 2005

Postby tso » Thu Sep 15, 2005 6:20 pm

Sudoku Susser is another must have (solver, helper, much, much more):
Works on Mac, Windows, Linux

SadMan Sudoku is shareware, but still great (solver, helper, generator):

Online solvers with no download required:

Paul's Pages (solver, helper, generator, archive):
Easy to import and export puzzles without having to type them in. Can be used to solve manually, pencil marks, etc.

A SuDoku Solver (solver):

Scanraid (solver, helper):

Sudoku Solver By Logic (solver, helper):

A fast solver on a Japanese page (solver):

This one solves 3x3, 4x4 and 5x5 -- with or without DIAGONALS as well:
Posts: 798
Joined: 22 June 2005

Postby emm » Fri Sep 16, 2005 6:04 am

Thanks for another helpful compilation of information which eliminates the need to search through miles of randomly relevant information.
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Joined: 02 July 2005

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