What an interesting game! I have an extensive board game selection which is certainly not limited to the rubbish which regularly appears in the Argos catalogue! Among others, I have had the pleasure to play Carcassonne, Settlers of Catan, Niagara, Descent, Ticket To Ride, Bang!, The Werewolves of Millers Hollow, San Juan, Conquest of the Empire, Britannia, Roborally, Shadows Over Camelot.... You get the idea - some real classics. Polarity however is very, very different. I actually found out about it from a newspaper article a few weeks ago - it recently won the Science Museum Smart Toy Award (and was their `Ultimate' winner). Now let me get one thing clear, the fact that a game had won some science award wouldn't immediately make me want to go out and buy it, but the picture in the newspaper showed 2 kids playing with magnets resting in the magnetic fields of other magnets - enlarge Amazon's image & you'll understand. Anyway, I managed to get hold of a copy, read through the rules and played a few games with a couple of friends - we also amended the rules ever so slightly so we could play with 4 players: 2 teams of 2. It's different and a whole lot of fun. Manual dexterity is not something which the average board game uses as a game mechanic - it works fantastically. Besides the fact that between games everyone is trying to balance their magnets against the largest stack possible, it just looks cool. Once you've played a few times the game becomes much more about the strategy of cutting down your opponents options, trying to get them to make the first mistake and capitalising on it rather than merely balancing magnets. Having said that, the moment you become complacent about a simple move (or you knock the table with your knee getting up to put the kettle on/get a beer), the game reminds you that it's boss with the merry snapping together of magnets.
Rules: simply put, you balance your magnets in the fields of your other pieces which are laying down flat (`Leaners' and `Foundation Discs' respectively). If they snap together while still in your hand it's the end of your turn & both magnets go back on your stack (you start with c20 magnets each). If they snap together on the table, your opponent gets to pick them up, turn over to their colour and place down anywhere on the board as a stack - these are called `Towers'. It is these Towers which score points at the end of the game which happens when one of the players successfully place their last magnet. Players with magnets still in hand subtract these from their `Tower score' to get their final score. I ended my first game with a score of -4 after a disastrous final turn having been in the lead all game - GREAT FUN!
There are a few more (relatively simple) rules but essentially it's a game which is fun, different, engaging enough to keep you coming back for more and has a certain "wow!" factor when people see it in progress or try the magnets out for themselves.
I recommend it (as well as the rest of the games I listed earlier).