A simple design, but a good strategy game. Be the player that places the final ball at the top of the pyramid. Sounds simple enough, right?Like in Go, 2 players square off with their colored pieces, in this case dark or light balls. The board has 16 hollows which allow a pyramid to be built. The goal is to be the one at the top.The strategy comes in even as the first few pieces are placed on the board if you can get a 'square' formed (4 balls of your color adjacent to each other on the same level), you can remove any 1 or 2 of your pieces (that don't support other pieces) and put them back in your reserve.Even if a square formed is not all one color, a piece-saving move is available called 'stacking'. Anywhere a square is formed, a player can move a piece up a level, onto the square. This can effectively lock some pieces down, at least for a little while. It also allows the player to make a play without using a piece from their reserve.Although the rules are only 1 side of a sheet of paper, they do include a couple of variants. One is for children (no square bonus), the other is for experts (2 pieces removed if you form a 'line' in your color). The rules state the game duration is normally between 5 and 20 minutes.Components 1 Pyramid Board 30 Wooden Balls Rules 1994 Mensa Select - BoardGameGeek