Sudoku Puzzle 25X25 Volume 3 EBook contains total of 60 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to
Sudoku Puzzle 25X25 Volume 5 EBook contains total of 60 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to
Sudoku Puzzle 25X25 Volume 1 EBook contains total of 60 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to
Sudoku Puzzle 25X25 Volume 2 EBook contains total of 60 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to