Zoffer is a casual strategic number board game, in which numbers become actual values. Each move will influence the following moves.
The game is easy to learn - you will have a temporary in-game-help at level 0 and 1 and a "how to play"-section. You will probably not learn it as quickly as you would learn Tic Tac Toe (which is a distant relative) but faster than chess (which is also a distant relative.) Play against a very strong AI (6 levels of increasing difficulty available) and against the best players on the planet.
This is a game for thinkers. People who anticipate. People who like a challenge.
Try to beat Max Zoffer (the name of the highest AI level) if you have the brains.