Our daughter loves to play games at school so we always get a few when we order our curriculum from Timberdoodle. We’ve been play GridBlock quite a lot because it really is that much fun. The pieces are very well made which is great because then they stand up to the wear and tear of a 5 year old. I think the board isn’t as well made as the pieces which is a shame but doesn’t inhibit the game play in anyway. We did lose of the pieces recently though. So I contacted Fat Brain Toy Co and they are sending us a replacement piece free of charge which is very nice of them. The game can be played with 2 to 4 players. The object of the game is to get all your pieces on the board before the other people. The first one to not be able to place their piece loses. The rules are very simple. 1: pieces much touch a piece of the same color. 2: pieces of same shape can not touch. What is very nice about this game is that all the pieces fit nicely inside the board so if you’d like to toss the box then