Halfchess is a casual chess game - it is faster and easier. The games are 5 mins long. There are 100+ levels and two player matches with Elo scoring. More -

Blind mode - Your pieces disappear after 3 moves

Crab mode - A new chess piece crab moves Zig-Zag

This is half a day hack. I noticed that the top 4 letters of keyboard are swipeable (and we don't have to type them). So I made a URL redirector to any URL you find hard to remember.

Fast Chess for Busy People

Designed for those who want to get better at chess but don't find enough time to practice. HalfChess is played on half the board where each game lasts just five minutes. HalfChess is truly the Twenty-Twenty of the chess world.