We collect number puzzle games.Small on size, big on fun! Features: 1. 5 game modes: 2048, Threes, negative, positive, Fibonacci! 2. 7 board sizes: 4x4,5x5,6x6,7x7,8x8,9x9,10x10! 3. 4 choices for new grids: 1~4 new grids ...