
Description: Open Sudoku is a free, open source Sudoku game and solver. It has a simple interface for playing Sudoku puzzles of varying difficulty, as well as tools for generating and solving Sudoku puzzles automatically.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: USB Sudoku is a portable sudoku game that can run directly from a USB flash drive without needing to be installed. It features a simple, no-frills interface for playing classic sudoku puzzles ranging from easy to hard difficulty levels.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API