It’s a simple yet challenging free block puzzle you won’t be able to put down. Merge cube blocks on the 9x9 grid, which should be familiar to all sudoku fans, to build lines and squares. Strategically stack sudoku blocks made up of cubes on the board to destroy them and keep the board clean. Block Puzzle, Merge Cubes, 9x9 Grid, Arcade Game, Puzzle Game, Strategy Game, 2D Puzzle, Block Puzzle Game, Cube Puzzle, Brain Training, Mobile Game