A colorful spin on Japanese logic puzzles, this wooden board uses wooden marbles in nine great colors instead of numbers to solve each game.<br><br>Start the game by placing the marbles on the board as shown by one of the 104 puzzle cards. Solve the puzzle by placing one (and only one!) of each color marble in each of the nine rows, columns, and three-by-three squares. Strategy is the name of the game. Don't lose your marbles trying to crack different combinations--there's only one correct solution to each puzzle!<br><br>When you're off the grid, leave this sculptural set out as a smart design accent. Made of rubber tree wood and paper in China. <br><br><i>Includes 104 puzzles in 5 levels of difficulty, color conversion card, card holder, storage tray, and solution booklet.</i>