Large Print Logic Puzzles: 100 Hard Variety Puzzles (Kakuro, Samurai Sudoku, Battleships, Hakyuu, Minesweeper, Hitori, Samurai Jigsaw Sudoku, ... 16x16): 23 (Logic & Brain Teasers Series)

500 Variety Logic Puzzles: 500 Hard Adults Puzzles (Sudoku, Kakuro, Hitori, Minesweeper, Masyu, Suguru, Binary Puzzle, Slitherlink, Futoshiki, Fillomino): 16 (Activity Book Series)

Detective Logic Puzzles for Adults: 50 Crime-Themed Logic Grid Puzzles - Fun, Easy to Hard Logic Puzzles - Large Brain Teaser Book

Hard Logic Puzzles & Brain Games for Adults: 500 Puzzles & 12 Puzzle Types (Sudoku, Fillomino, Battleships, Calcudoku, Binary Puzzle, Slitherlink, ... 3 (Challenging Fun Brain Teasers Series)

Binary Puzzle Books for Adults: Binario Binairo Takuzu Math Logic Puzzles | Easy to Hard

Minesweeper: 500 Easy to Hard Logic Puzzles (10x10): 7 (Logic & Brain Teasers Series)

Logic Puzzles: 500 New Hard Puzzles (Battleships, Hakyuu, Sudoku, Kakuro, Hitori, Suguru, Binary Puzzle, Minesweeper, Masyu, Jigsaw Sudoku): 20 (Logic & Brain Teasers Series)

Suguru (Number Blocks): 500 Easy to Hard Logic Puzzles (10x10): 11 (Logic & Brain Teasers Series)

Binary Puzzle: 250 Hard Logic Puzzles 8x8: 13 (Binary Collection)

Adult Activity Book: 500 Hard Logic Puzzles (Sudoku, Tridoku, Masyu, Hakyuu, Battleships, Fillomino, Suguru, Creek, Numbrix, Binary, Minesweeper and Futoshiki): 26 (Logic & Brain Teasers Series)

The Big Book of Logic Puzzles - Minesweeper 400 Hard (Volume 53)

The Big Book of Logic Puzzles - Skyscrapers 400 Hard (Volume 48)

Straights: Logic Puzzles :: 500 Easy to Hard (9x9) :: Keep Your Brain Young: 26 (Brain Games for Adults Series)

Slitherlink Logic Puzzles: 100 Easy to Hard (25x25) :: Keep Your Brain Young: 14 (Large Print Puzzles Series)

Suguru (Number Blocks): 500 Medium to Very Hard : (9x9) Puzzles (Logic Puzzles for Adults Series)

Futoshiki: 250 Medium to Hard Challenging Logic Puzzles 7x7: 20 (Futoshiki Collections)

Train Tracks Puzzles: 250 Hard Logic Puzzles 6x6: 6 (Model Railway)

Will Shortz Presents the Big, Bad Book of KenKen: 100 Very Hard Logic Puzzles That Make You Smarter

Suguru : Number Blocks Logic Puzzles: 500 Easy to Hard (10x10) :: Keep Your Brain Young: 24 (Brain Games for Adults Series)

Will Shortz Presents KenKen for Your Vacation: 100 Easy to Hard Logic Puzzles That Make You Smarter

The Big Book of Logic Puzzles - Greater Than 400 Hard (Volume 41)

Minesweeper Logic Puzzles: 500 Easy to Hard (10x10) :: Keep Your Brain Young: 20 (Brain Games for Adults)

Tricky Logic Puzzles for Adults: 130+ Difficult Puzzles to Challenge Your Brain