Greene Hill Publishing Limited

year of publication	ISBN	author(s)	title
2005	978-0-9551413-1-7	Peter Greene	200 Difficult Sudoku Puzzles
''	978-0-9551413-3-1	Peter Greene	100 Samurai Sudoku Puzzles
2006	978-0-9551413-4-8	''	100 Samurai Sudoku Puzzles 2