SSit and Solve® Easy SudokuSit and Solve® Easy Sudokude Michael RiosMateriasSudokuMathematical recreationsPuzzlesEdiciones (1)Sit and Solve® Easy Sudoku (2010)Puzzlewright · ISBN 9781402780240Más obras de Michael RiosDDiálogosDiálogosCCommunity Development and Democratic PracticeCommunity Development and Democratic PracticeSudoku Puzzles for Clever Kids