My seven-year-old son is enthralled with Neopets Puzzle Challenge. I've played it only once myself, but I can see the attraction. It's like the board game Othello (which I played endless games of against my college roommate when we should have been studying), but, being computer-based you avoid all those mishaps of not turning over all your pieces, etc, and it has these cute clever characters that my son finds endlessly endearing. His nine-year-old sister plays it less often - mostly because we have only one Nintendo DS and she cannot pry it from his hands. But she is also less enamored of the game Othello, too. Overall, it is a cool game because the strategic elements make my son think and he really sticks with the game and works to overcome increasingly more difficult opponents. I'm going to have to give it another try - after he's in bed!!