Colour Chess by Mipmap FREE

Colour Chess comes from Mipmap.  From the App Store: A colourful reimagining of traditional Chess, this is the mobile version of the award-winning and Mensa-nominated tabletop game Colour Chess.

It focuses on skill and creativity rather than studying set openings, as you use the colours to force and trap your opponent with a game that is different every time.

Simple to learn for beginners, yet strategically deep enough for Masters. 

I have not play tested this game.  But I find this game intriguing.
https://itunes.apple.com/us/app/colour-chess/id1390227327?mt=8