Quadrillion is the ultimate solitaire game - multi-level, single player, brain teasing fun.
Start a new challenge in a snap, just place the four magnetic grids together and start playing. Can you fit the 12 puzzle pieces on the game board you just created without placing any puzzle pieces on top of the black or white dots? Flip, turn, place, arrange, rearrange and connect them all until the puzzle's solved. Follow the 60 challenges in the booklet or simply snap the boards together and create your own - every challenge has multiple solutions but can you find one? Perfect for the budding IQ genius.
Nine year olds are clever little fellows and have lots of interests. Great presents for 9 year old boys are remote controlled cars or flying objects, science construction kits, anything that shoots, or outdoor gear. Pranks will appeal to that 9 year old sense of fun. Or get them a great book ideally about football.