Swan Editions
1600 Word Scramble Puzzles with Full Solutions Volume 3- 600 Sudoku Puzzles 9X9 Grids Intermediate Level Hard Volume 1 with Instructions and Full Solutions
- 800 Sudoku Puzzles for Beginners 4X4 Grids Level Easy with Instructions and Full Solutions
- 800 Sudoku Puzzles for Beginners 4X4 Grids Level Hard with Instructions and Full Solutions
- 800 Sudoku Puzzles for Beginners 4X4 Grids Level Medium with Instructions and Full Solutions