Lichess - The complete chess experience, play and compete in tournaments with friends others around the world.
Xmind - Xmind is a brainstorming and mind mapping application.
Chess.com - Play chess on Chess.
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Lucas Chess - The aim is to play chess against the computer with increasing levels of difficulty and with a...
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.