1. After SUDOKU is pushed to the market, its derived product KAKURO faces to the world, which has more challengeable games than SUKOKU. 2. It is believed that it will bring a new tide wave. As the top-level product of KAKURO, G866 has the following functions: KAKURO(9X9), SUDOKU(9X9), GUESS NUMBER, REVERSI and FOUR BY FOUR totaled 5 games, perpetual calendar, alarm clock and etc. 3. The game level is from intermediate to high levels and valuable for playing. It integrates the popular KAKURO and SUDOKU. Unit size: 16.3x8.8x2.3cmCTN dimensions: 70x48.5x45cmBoxing Quantity: 60pcsN.W./G.W.: 15.6/17.6kg