puzzle mathematics

Absolutely Nasty(r) Kakuro Level Two - by Conceptis Puzzles (Paperback)

Brain Games - 10 Minute: Large Print Crossword Puzzles - by Publications International Ltd & Brain Games (Spiral Bound)

Crossword Puzzles for Brain Fitness - (Brain Fitness Puzzle Games) by Aimee Lucido & Matthew Stock (Paperback)

The New York Times Piece of Cake Crosswords - (New York Times Crossword Puzzles) by New York Times & Will Shortz (Paperback)

Will Shortz Presents I Can Kenken!, Volume 3 - by Tetsuya Miyamoto & Kenken Puzzle LLC (Paperback)

Puzzles for Stroke Patients - by Kalman Toth M a M Phil (Paperback)

The New York Times Supersized Book of Sunday Crosswords - (New York Times Crossword Puzzles) (Paperback)

How to Think - Creative Thinking Puzzles - by Charles Phillips (Paperback)

Brain Games - To Go - Stress Free: Crossword Puzzles (Teal) - by Publications International Ltd & Brain Games (Spiral Bound)

Brain Games - Large Print Crossword Puzzles (Arrow) - (Brain Games Large Print) by Publications International Ltd & Brain Games (Spiral Bound)

Third-Degree Green Belt Kakuro - (Martial Arts Puzzles) by Conceptis Puzzles (Paperback)

Collins Murder Mystery Puzzles - Mystery on the Tracks - by Clarity Media (Paperback)

New York Times Games Sunday Crosswords - (New York Times Games Day of the Week Spiral Puzzles) (Spiral Bound)

Black Crossword: 100 MIDI Puzzles Connecting the African Diaspora - by Juliana Pache (Paperback)

Brain Games - Sticker by Letter: Magical Creatures (Sticker Puzzles - Kids Activity Book) - (Mixed Media Product)

The New York Times Puzzle Doctor Presents Crossword Fever - by New York Times & Will Shortz (Paperback)

The New York Times Will Shortz Presents Kenken - (Will Shortz Presents...) by New York Times & Tetsuya Miyamoto & Kenken Puzzle LLC (Paperback)

Sudoku Puzzle Book for Adults - by Rafael Shamay (Paperback)

Connect with Calm: Dot-To-Dot Puzzles for Relaxation - by Conceptis Puzzles

Brain Games - To Go - Summer Fun Puzzles 180+ Variety Puzzles Compact & Portable for Travel Beach, Vacation & Road Trip Activity Book Gift for

Brain Games - Crossword Puzzles - Large Print (Green) - (Brain Games Large Print) by Publications International Ltd & Brain Games (Spiral Bound)

Csi Puzzle Unit - by Joel Jessup (Paperback)

Puzzle Mania - by Sanjay Pappu (Paperback)

Intermediate Chess Puzzles - (How to Beat Anyone at Chess) by Martin Bennedik (Paperback)