GOT WHAT IT TAKES TO FACE OFF IN A BRAINY COMPETITION? Face off in the game of Otrio, a head-to-head strategy board game based on the classic game of tic-tac-toe! LINE UP THE PIECES FOR THE WIN: Players compete to line up three pieces of the same color by similar size; in ascending or descending order; or within the same space. EDUCATIONAL AND FUN: Playing Otrio encourages players to cultivate their reasoning, strategizing and critical thinking skills. EASY START, FUN AND ENGAGING: Otrio is made for 2-4 players ages 8 and up and is the perfect activity for family game night in or as a travel game. Includes: Gameboard, 36 Playing Pieces, Instructions. Addicted to brainy challenges? Then fire up your competitive side with Otrio, the 2-4 player head-to-head strategy game! To claim victory and win, get three pieces of your color in a row based upon similar size; lined up in ascending or descending order; or within the same space as three concentric pieces. The rules are simple enough for kids to learn and play but the game is complex, and intellectually satisfying even for adults! Depending on the wit of your opponent, you may need to sharpen your strategic skills and exercise critical thinking! Straight out of the Brain Workshop, Otrio turns a child's game of tic-tac-toe into a full fledge strategy battle. A unique game that is engaging, challenging and beautifully built! Show off your smarts in a brainy showdown with Otrio!