An apparatus to solve Sudoku puzzles of any difficulty level, wherein each one of the 81 squares has all the 1 through 9 digits pre-written on it, and with the numbered pads of initially given number solutions placed over their designated square locations, thus masking the respective digits at those locations, all other squares' digit locations are logically masked with digit-covers at all squares requiring solutions, and thus the puzzle is systematically solved by obtaining the single digits that remain unmasked reveal a square's solution number.
展开▼
