Players move wooden blocks into the puzzle area that corresponds with the missing pieces of the puzzle to fill vertical and horizontal lines. The player merely needs to fill the grid's empty cells in rows and columns with blocks presented as polyomino shapes to earn as many points as possible. It also doesn't require number generation. Although it has 'doku' in the name and features a grid, it's played on a 10x10 instead of a 9x9 Sudoku board.
