Games

Play online puzzles at one of four difficulty levels. Also includes a solver program and hints. Software for Pocket PC and Windows also available.

Flash application to assist in solving puzzles by using basic scanning techniques. Download and source code available.

This web page describes a 19-line (769-byte) OCaml program that solves Sudoku puzzles.

Sudoku generator/solver/analyzer written in Java/Swing (English and German). Lots of human style techniques (singles, subsets, LCs, fish, wings, uniqueness, coloring, chains, ALS), powerful analyzer (manage multiple solutions for one sudoku).

Printable Sudoku, logic puzzles, mazes and a blog.

For Windows: puzzle generator and solver for sizes between 4x4 and 36x36.

Freeware puzzle creator for Windows.

Sudoku puzzle generator and solver software for Mac OS X.

Download printable puzzles at all levels, descriptions of strategies. Windows programs for solving and printing Sudoku, and for solving Samurai Sudoku.

Shareware puzzle solver. Generate and solve puzzles, print out the grid for solving by hand, tips and tutorials with online discussion forums. [Windows XP/2000/Me/98]

Open source application which describes the logic used to solve a grid, rather than using a simple brute force solution. Includes source code and samples. [Windows 95/98/NT/2000/XP, Linux]

Program to generate Sudoku puzzles, comprehensive list of solving techniques.

Shows the logic behind solving sample games square by square.

Excel-based shareware helper application.

Open source Sudoku game for any Java enabled phone. Includes downloads, a game manual and user forums.

Open source Sudoku solver with visualization of solving strategies.

Online sudoku which is free and open source made in DHTML (JavaScript, CSS / CSS3, HTML / HTML5).