C# Sudoku and Sudoku Variant Solver

Created and maintained by David Clamage (Rangsk)

First-Time Setup Guides

A fast Sudoku solver which supports all common variants.
Logical solve path feature with human-like techniques.
Fast multi-threaded brute force solution count.
"Real candidates" feature to assist with setting.
Support for solving all f-puzzles constraints.
Import from f-puzzles URLs and other common Sudoku formats, as well as direct construction via command-line.
Integration with the f-puzzles website to replace the built-in f-puzzles solver with this one and to enable additional solver features.

I am accepting pull requests for pretty much anything, including: