94 books • 44 series
Lighthouse Battleships (Battleships Collections, #30)
Digital Battleships (Battleships Collections, #55)
Anti Diagonal Sudoku (Sudoku Anti Diagonal, #11)
Girandola Sudoku (Sudoku Girandola, #12)
Bent Diagonal Sudoku (Bent Diagonal Sudoku, #1)
Little Killer Sudoku (Little Killer Sudoku, #1)
Ninja Sudoku (Sudoku Ninja, #1)
Sudoku Weave (Weave Sudoku, #1)
Sudoku Kunoichi (Kunoichi Sudoku, #1)
Ten-Box Sudoku (10 Box Sudoku, #1)
Extra Space Sudoku (Sudoku Extra Space, #2)
Samurai Sudoku Parquet Style (Sudoku Samurai Parquet, #1)
Sudoku Parquet (Parquet Sudoku, #2)
Clueless Sudoku (Sudoku Clueless, #2)
Clueless Windoku X (Mini Clueless Windoku-X, #1)
Clueless SExplosion (Clueless Sexplosion, #1)
Clueless Explosion (Clueless Explosion, #1)
Hyper Sudoku (Windoku, #10)
Sudoku X (Diagonal Sudoku, #15)
Sudoku Mine (Sudoku Minesweeper, #1)
Douieru Puzzles (Doinaeru Puzzles, #1)
Nonograms for Experts (Hanjie, #1)
Trianograms (Triangle Nonogram, #1)
Magnets Puzzle (Magnet Puzzles, #1)