Oliver Quincy
No biographical information is available for an author named Oliver Quincy. It is possible that this name is a pseudonym or refers to a lesser-known writer.
Killer Sudoku - 200 Easy to Master Puzzles 9x9 (Volume 6)
Killer Sudoku - 200 Easy to Normal Puzzles 9x9 (Volume 8)
Killer Sudoku - 200 Easy Puzzles 9x9 (Volume 8)
Suguru - 200 Easy to Master Puzzles 9x9 (Volume 6)
Suguru - 200 Easy to Normal Puzzles 9x9 (Volume 7)
Killer Sudoku - 200 Master Puzzles 9x9 (Volume 10)
Straights Puzzles Book - 200 Master Puzzles 9x9 (Volume 10)
Suguru - 200 Normal Puzzles 9x9 (Volume 6)
Suguru - 200 Master Puzzles 9x9 (Volume 9)
Suguru - 200 Easy Puzzles 9x9 (Volume 6)
Killer Sudoku - 200 Easy to Normal Puzzles 9x9 (Volume 10)
Calcudoku Puzzles Book - 200 Easy to Master Puzzles 9x9 (Volume 7)