DKM Sudoku Online - Play online puzzles at one of four difficulty levels. Also includes a solver program and hints. Software for Pocket PC and Windows also available.
Erational Sudoku Helper - Flash application to assist in solving puzzles by using basic scanning techniques. Download and source code available.
Simple Sudoku - Freeware puzzle creator for Windows.
Su Doku Master - Sudoku puzzle generator and solver software for Mac OS X.
Sudogo.com - Offers puzzles in PDF and mySQL formats for solving offline or building into custom applications. Also offers online puzzles with three difficulty levels and customizable look-and-feel. [Dutch/English]
Sudoko Solver by Logic - JavaScript-based solver which attempts to complete grids by logic. Includes step-by-step description as well as suggesting a single move. Offers challenge to find new logical methods for "unsolvable" puzzles.
Sudoku Dragon - 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]
Sudoku Java Solver Applet by Klaas - Java-based brute force solver. Displays animation of solution. Solves pre-defined puzzle or allows the user to enter his or her own puzzles.
Sudoku Sensei - 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]
Sudoku Solver - A free utility to solve and email Sudoku puzzles.
Sudoku Solver - .NET solving program. Either offers hints or solves entire puzzle.
