Free service of Michael Passman: You can play against opponents over the net !! :
 
You can also play from a mobile phone. The system is optimized for mobile device and handles network disconnections and returns to the game immediately after reconnecting or even after refreshing the entire page.
 Competitions between chess Computers, Every competition begins at a certain opening.
In addition - a unique system for solving chess puzzles!
You can solve puzzles at various levels   - from completely beginners (matte in one move) to problems for the most advanced players !!
Guest login for playing chess game or real-time game viewing by  ChessPM
For registered users or other options
Example of presentation or an e-book that can be written with the system
Coming soon: innovative system for studying chess