America's New Block Game, Quadro!
This set of 20 blocks comes with four different games to play as well as three puzzles. Nineteen blocks use the numbers 0 to 6, as in a double-6 domino set, plus one "Q-Quadro", which acts as a joker or wild.
Quadro is in the vein of dominoes, where players are trying to place blocks that have ends which add to a multiple of 5.
Pung requires the two players to form two 2x2 squares, where all the inner numbers match domino-style.
Put and Take has the players attempting to fill their hand with a single suit of blocks. As in dominoes, a suit is a set of blocks that all have the same number on them.
Match is a simple game for children, where the players score points for matching numbers on the blocks. Each player gets 4 turns, then the totals are scored.