The brain-bending fun really stacks up with this vertical take on traditional Kanoodle! Perfect for solo play or a two-player challenge, players put their puzzle skills to the test to complete 40 gravity-defying puzzles or alternate placing pieces with a friend. Simply select a challenge from the guide, place the pieces as shown, then use the remaining pieces to complete the puzzle—or take turns placing the pieces. If a player's piece doesn't fit—they lose the round! Each set includes Kanoodle Gravity puzzle board, 10 colorful puzzle pieces, guide with 40 puzzle challenges, and carrying case, includes 9 sets.