Recommended games:
Sudoku Falls
Sudoku Falls places sudoku against peaceful waterfall background imagery.
Sudoku Unlimited
The board is composed of a grid of 81 cells and nine of nine subgrid cells. Fill the entire board with the numbers 1 to 9. Without repeating any number in a same row, column or subgrid.
chisla
A sudoku game with 3 levels of difficulty
Picma Squared
Picma Squared is a picture logic game. The goal is to discover the image hidden within each puzzle by following a couple of simple rules and using nothing but logic.
It features 28 puzzles, an easy to use, colourblind-friendly interface and a comprehensive Help section. In addition, it is the only puzzler of it's kind to offer the challenge of multi-coloured puzzles.
Wiidoku
Sudoku designed to work in the Wii browser
Drupple Sudoku
Simple, elegant sudoku