This is a collection of 12 games playable with the same components released to commemorate the 150th anniversary of Gauss' death. The games are mainly 2 player. They use a set of wooden blocks which come in lengths of 1 to 6. A die is used in many of them to determine the length of the piece to be placed. There are variants on connecting-sides-of-the-board, placement-within-a-limited-space, moving- across-the-board, blocking and capturing games. 8 are adult games, 4 children's games. There are also an additional 2 adult games by Peter Lewe. - BoardGameGeek