I’m still looking for an app that effectively teaches Go to a complete novice like myself (suggestions welcome if you know of a good one), but until then I’m satisfied to play the infinitely less complex variant of Go known as Go Moku. The object of Go Moku is much simpler than traditional Go. You have to get five of your stones in a row, horizontally, diagonally or vertically while simultaneously stymying your opponent’s attempts to do the same. If you’ve played the westernized version of Go Moku, Pente, you should be familiar with this mechanic (although Go Moku lacks Pente’s rules for capturing an opponent’s pieces). iGoMoku HD Pro (whew! Pretty long title) provides an effective, challenging version of this game with a wide variety of AI opponents.