| http://www.w3.org/ns/prov#value | - I found myself going on this game everyday just to improve my brain age, and beat my brothers.I also enjoyed the other option, 'sudoku' I found this option particularly useful for train, or car rides, as it takes around 10 minutes to do each one, and it does not take too much concentration, also, it saves you having to buy a newspaper, just for the puzzles.If anyone is thinking about buying a Ninte
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