The New Sudoku Players' Forum

[skysea575]

gsf is a classic command-line Sudoku solver/generator (sudoku.exe, known in the community as “gsf”) written by Glenn Fowler at AT&T Labs. It is a native 32-bit old C compiled single-file program. In the early days, it worked on WinXP/Win7/Win10, but largely fails on Win11.

gsf (Glenn Fowler, AT&T Bell Labs) — the original sudoku.c single C source file plus accompanying headers. The original AT&T official domain is now offline. Currently, two reliable source packages remain: the streamlined single-file sudoku.c version, and the full ast-sudoku source package (which includes sudz compression, minlex normalization, and complex logic).

Request: Could someone help provide the C source file, or provide a recompiled program that runs on Win11? Many thanks.

[1to9only]

gsf's source: https://github.com/1to9only/ast-sudoku.2012-08-01

some midifications by me + 64bit binaries: https://github.com/1to9only/gsf-s-sudoku.exe

[skysea575]

gsf's source: https://github.com/1to9only/ast-sudoku.2012-08-01

some midifications by me + 64bit binaries: https://github.com/1to9only/gsf-s-sudoku.exe

sudoku64 -m -gt -n10 layout.txt Puzzles.TXT


I'm sorry, but I can't get gsf's source from here: https://github.com/1to9only/ast-sudoku.2012-08-01

Some modifications by me + 64bit binaries: https://github.com/1to9only/gsf-s-sudoku.exe downloaded.

But after downloading from https://github.com/1to9only/gsf-s-sudoku.exe/releases, when running commands in Windows 11-64bit, it cannot generate puzzles. I don't know why.

commands：sudoku64 -gt -n10 layout.TXT Puzzles.TXT

Also, can you upload the software or code as an attachment?

Thank you very much."

[1to9only]

I'm sorry, but I can't get gsf's source from here: https://github.com/1to9only/ast-sudoku.2012-08-01

Strange! Try this: https://github.com/1to9only/ast-sudoku.2012-08-01/archive/refs/heads/master.zip

sudoku64 -m -gt -n10 layout.txt Puzzles.TXT

The correct command is: sudoku64 -m -gt -n10 < layout.txt > Puzzles.TXT

The [input] file layout.txt MUST contain an 81-character sudoku puzzle to use as pattern to generate grids.
The [output] file Puzzles.TXT will contain the generated grids.

[skysea575]

I can now download the code.
After compiling it with VSCode, the generated software `sudoku.exe` is 678 KB (695,144 bytes) in size.

However, when I run the command `sudoku -gt -n10 Layout.TXT Puzzles.TXT`, I do not get any results.

Layout.TXT
..O...O..
.O.....O.
O....O..O
.....O...
...OOO...
...O.....
O..O....O
.O.....O.
..O...O..


Even using your compiled version from `https://github.com/1to9only/gsf-s-sudoku.exe` fails to run.

The previous version was able to generate Sudoku puzzles when running on Windows 7. I’m not sure why it’s not working now.

ps:'sudoku --man' can run.

My system is Windows 11, 64-bit. I would really appreciate your guidance on this. Thank you very much.

[denis_berthier]

I can now download the code.
After compiling it with VSCode, the generated software `sudoku.exe` is 678 KB (695,144 bytes) in size.
However, when I run the command `sudoku -gt -n100 Layout.TXT Puzzles.TXT`, I do not get any results.

Can you try the version included in CSP-Rules: https://github.com/denis-berthier/CSP-Rules-V2.1 folder XTERNS/GSF ?
.

[skysea575]

My goal is to use sudoku.exe to generate Sudoku puzzles according to a specified pattern.

The previous version worked, but the old software can no longer be used on my Windows 11 64-bit computer.

The new version of the code and the downloaded program also fail to work. After compiling it myself, it still doesn't work.

I don't know where the problem is.

Additionally, are there any other software programs that can generate Sudoku puzzles according to a specified pattern?
just ike
layout.txt
..O...O..
.O.....O.
O....O..O
.....O...
...OOO...
...O.....
O..O....O
.O.....O.
..O...O..

Please let me know. Thank you very much.

[denis_berthier]

My goal is to use sudoku.exe to generate Sudoku puzzles according to a specified pattern.

Additionally, are there any other software programs that can generate Sudoku puzzles according to a specified pattern?
just ike
layout.txt
..O...O..
.O.....O.
O....O..O
.....O...
...OOO...
...O.....
O..O....O
.O.....O.
..O...O..

You can do that with gsf's program: generate 10 unique minimal puzzles for each for each pattern in pattern.txt:
gsf.exe -n10 -gt -euniq()*(1==minimal) < pattern.txt > puzzles.txt
The patterns must be in line format.
Not sure the 0 will work; you may have to use 1 or X. (Usually, 0 and . are equivalent in gsf).
.

[1to9only]

I don't know where the problem is.
Additionally, are there any other software programs that can generate Sudoku puzzles according to a specified pattern?
just ike
layout.txt
..O...O..
.O.....O.
O....O..O
.....O...
...OOO...
...O.....
O..O....O
.O.....O.
..O...O..

This pattern does not produce any grids, or takes too long to find one.

Try the one given in this post: http://forum.enjoysudoku.com/post219180.html#p219180

[skysea575]

I don't know where the problem is.
Additionally, are there any other software programs that can generate Sudoku puzzles according to a specified pattern?
just ike
layout.txt
..O...O..
.O.....O.
O....O..O
.....O...
...OOO...
...O.....
O..O....O
.O.....O.
..O...O..

This pattern does not produce any grids, or takes too long to find one.

Try the one given in this post: http://forum.enjoysudoku.com/post219180.html#p219180

Thanks, the previous mode was indeed too slow for generating Sudoku puzzles.

With the new mode, Sudoku puzzles can be generated quickly now.