The only area in which Chess Ultra falls a little short is its asynchronous matchmaking system. The robust tutorial and vast number of challenges ensure that solo players can learn the game and have a great time, and cross-platform multiplayer is awesome too. It looks beautiful and has some quality tranquil music that varies by the locations elected, including a few songs with lyrics. But Chess Ultra is a really solid game of chess. I didn't play Pure Chess, so I can't compare Chess Ultra's improvements to that game.
