FREE - In Google Play
FREE - in Win Phone Store
reward? ha! it's a game!
No no no, compulsory isn't the right solution.. only if we had a dictatorship: then you may go ahead with it:-)
You said it, man! Chess is the most bullsh*t game ever invented by indians and should be banned for kids and should be also professionally banned.
chess leads to stupidity. why should we do this to kids