What a great strategy game that will help teach younger kids matching skills (as well as colors and shapes) and will also prove to be challenging enough for adults to play without the kids.  Its just an all-around fun game that reminds me of scrabble with shapes and a pinch of Sudoku.  The idea is to build off of the other players tiles, building rows of colors and shapes with no overlapping in order to rack up points and create qwirkles (complete rows of either one specific shape, all six colors, or all shapes, one color).  The game becomes tricky when other players block off possible qwirkles, and new rows start spurring off left and right.  Its the perfect balance of ease and challenge, and a great game for everyone in your house!