Sign-In
Cart
Japanese Puzzles: Hakyuu Puzzles - Best Japanese Logic Puzzle Collection
Paperback
Series: Japanese Puzzle Books, Book 1
ISBN13: 9781981090389
Publisher: Independently Published
Published: May 13 2018
Pages: 116
Weight: 0.40
Height: 0.28 Width: 6.00 Depth: 9.00
Language: English
Hakyuu (also known as Ripple Effect, Hakyuu Kouka, Hakyukoka, Seismic) is a logic puzzle published by Nikoli. The puzzle consists of a rectangular grid of any size divided into polyomino sections called rooms. Each room must be filled with each of the numbers from 1 to the number of cells in the room. If two identical numbers appear in the same row or column, at least that many cells with other numbers must separate them.
Also in
Logic & Brain Teasers
The Ministry of Quizzes: The Ultimate Compendium for Puzzlers and Quiz Solvers
Gentle, David
Paperback
Big Quiz Book 2: 1001 Brain Busting Trivia Questions (National Geographic Kids)
National Geographic Kids
Paperback
The Official Sherlock Puzzle Book: Are You as Smart as Sherlock Holmes? (Sherlock Holmes Puzzle, Detective Gifts, Mystery Gifts)
Maslanka, Chris
Tribe, Steve
Paperback
Murdle: Volume 1: 100 Elementary to Impossible Mysteries to Solve Using Logic, Skill, and the Power of Deduction
Karber, G. T.
Paperback
Murdle: Volume 2: 100 Elementary to Impossible Mysteries to Solve Using Logic, Skill, and the Power of Deduction
Karber, G. T.
Paperback
The Killer Isn't Alice: The Bestselling Murder Mystery Puzzle Book - 46,600 Suspects, 1 Killer. Can You Solve the Crime?
Starling, Iris
Paperback
Puzzle Mania!: Wordle, Connections, Spelling Bee, Minis and More!
New York Times Games, The
Fagliano, Joel
Hardcover
Murdle: Volume 3: 100 Elementary to Impossible Mysteries to Solve Using Logic, Skill, and the Power of Deduction
Karber, G. T.
Paperback
The Ultimate Brain Health Puzzle Book for Adults: Crosswords, Sudoku, Cryptograms, Word Searches, and More!
Fraas, Phil
Paperback
Minute Cryptic: Over 160 Wordplay Puzzles to Decipher, Unlock, and Untangle
Runnalls, Liam
Tiernan, Angas
Paperback
Garden Lover's Puzzle Book: Packed with Quizzes, Puzzles, and Trivia for Garden Enthusiasts
Books, Michael O'Mara
Paperback
The Ultimate Fun Adult Activity Book: Logic Puzzles, Sudoku, Mazes, Word Searches, Crosswords, Acrostics, Coloring, and More!
Demyanovich, Julie
Paperback
Brain Games - Large Print Bible Word Search: Psalms (Large Print Edition)
Publications International Ltd
Brain Games
Paperback
Puzzles & Perils: The Crystal Quest: A Novel in 100 Fantastical Puzzles
Ayres, Laura Jayne
Moore, Gareth
Paperback
Brain Games - Criminal Mind Puzzles: Crime-Themed Brain Teasers Visual, Verbal, Memory & Logic Puzzles Spiral Bound Activity Book for Adults & Teens
Publications International Ltd
Brain Games
Paperback
Would You Rather - Campfire Edition: 300+ Wild and Funny Questions for Camping Nights and Outdoor Adventures
Special Art
Paperback
Relaxing Brain Games for Adults: 100+ Logic, Math, and Word Puzzles to Help You Unwind
Callisto Publishing
Paperback
Brain Games - Word Searches - Large Print: Easy on the Eyes, Not on the Brain Puzzles Progress from Simple to Challenging Gift for Adults & Seniors (Large Print Edition)
Brain Games
Publications International Ltd
Paperback
Brain Games - Large Print Word Search: Unwind and Test Your Problem-Solving Skills Easy to Read, Fun to Solve Gift for Adults & Seniors (Large Print Edition)
Brain Games
Publications International Ltd
Paperback
The New York Times Seriously Hard Crossword Puzzles: 200 Challenging Puzzles
New York Times
Paperback
Bordergrams: A Quest for the Queen: 80 Epic Fantasy Connection Puzzles from the Bestselling Author of Murdle
Karber, G. T.
Donohue, Daniel
Messerschmidt, Dani
Paperback
The New York Times Take It with You Monday Crosswords: 200 Easy Removable Puzzles
New York Times
Paperback
Brain Games - Merriam-Webster's Variety Puzzles Large Print: Anagrams, Crosswords, Cryptograms, Word Searches, and More!
Publications International Ltd
Brain Games
Paperback
Brain Games - Sticker by Number: Flowers & Nature Stained Glass (28 Images to Sticker)
Brain Games
New Seasons
Publications International Ltd
Paperback
Meowdle: 75 Feline Crime Puzzles to Solve Using Logic, Skill and the Power of Catnip
Moore, Gareth
Ayres, Laura Jayne
Paperback
New York Times Games Get Better as You Go: 200 Easy to Hard Crossword Puzzles
New York Times
Paperback
399 Games, Puzzles & Trivia Challenges Specially Designed to Keep Your Brain Young
Linde, Nancy
Paperback
Brain Games - Relax and Solve: Word Search Puzzles (Pattern Cover)
Brain Games
Publications International Ltd
Paperback
The Official Agatha Christie Puzzle Book: Put Your Detective Skills to the Ultimate Test
Agatha Christie Ltd, Agatha Christie
Paperback
Brain Games - Calm: Word Search Puzzles - Large Print
Publications International Ltd
Brain Games
Paperback
500 Puzzles for Wordle Lovers: Sharpen Your Skills with Fun, Challenging Brain Teasers!
Carlile, Rick
Paperback
New York Times Games Celebration Mini Crosswords: 150 Easy Fun-Sized Puzzles
Fagliano, Joel
New York Times
Paperback
299 On-The-Go Games & Puzzles to Keep Your Brain Young: Minutes a Day to Mental Fitness
Linde, Nancy
Paperback
200 Stress-Relieving Sudoku Puzzles to Sharpen Your Mind: Presented by Maria Shriver, Patrick Schwarzenegger, and Mosh
Schwarzenegger, Patrick
Mosh
Shriver, Maria
Hardcover
Brain Games - Bible Word Search (Large Print Edition)
Publications International Ltd
Brain Games
Paperback
The New York Times Best of the Week Series: Tuesday Crosswords: 50 Easy Puzzles
New York Times
Paperback
Brain Games - Relax and Solve: Sudoku (Pattern Cover)
Publications International Ltd
Brain Games
Paperback
New York Times Crossword Puzzle 2025: Crossword Puzzle Book for Adults, Seniors, Men And Women With Full Solutions
Morris, Jerry R.
Paperback
Murder Most Puzzling Peril at Quandary Park: A Mysterious Case to Solve
Von Reiswitz, Stephanie
Hardcover
Brain Games - Relax and Solve: Crossword Puzzles (Pattern Cover)
Publications International Ltd
Brain Games
Paperback
Brain Games - Large Print Sudoku: Unwind and Test Your Problem-Solving Skills Easy to Read, Fun to Solve Gift for Adults & Seniors (Large Print Edition)
Brain Games
Publications International Ltd
Paperback
Brain Games - To Go - Sudoku Puzzles: More Than 200 Sudoku Puzzles! (Purple)
Brain Games
Publications International Ltd
Paperback
New York Times Games Strictly Medium Crossword Puzzles Volume 3: 200 Medium Puzzles
New York Times
Paperback
Brain Games - Large Print Word Search (Large Print Edition)
Brain Games
Publications International Ltd
Paperback
The Total Brain Workout: 450 Puzzles to Sharpen Your Mind, Improve Your Memory & Keep Your Brain Fit
Danesi, Marcel
Paperback
Parlor Games for Friends and Family: 130 Games of Offline Fun
Tsintziras, Spiri
Jones, Myfanwy
Paperback
100 Stress-Relieving Word Search Puzzles to Sharpen Your Mind: Presented by Maria Shriver, Patrick Schwarzenegger, and Mosh
Schwarzenegger, Patrick
Mosh
Shriver, Maria
Hardcover
440 Games, Puzzles & Brain Boosters Specially Designed to Keep Your Mind Sharp
Linde, Nancy
Paperback
Purrdle: 75 More Feline Crime Puzzles to Solve Using Logic, Skill & the Power of Catnaps
Ayres, Laura Jayne
Moore, Gareth
Paperback
The New York Times Best of the Week Series: Wednesday Crosswords: 50 Medium-Level Puzzles
New York Times
Paperback
50 Math Tricks That Will Change Your Life: Mentally Solve the Impossible in Seconds
Zakowich, Tanya
Paperback
Will Shortz Presents the Super Book of Serious Sudoku: 300 Challenging Puzzles
Shortz, Will
Paperback
The New York Times Take It with You Wednesday Crosswords: 200 Medium Removable Puzzles
New York Times
Paperback
The New York Times Blooming Book of Mini Crosswords: 150 Easy Fun-Sized Puzzles
New York Times
Fagliano, Joel
Paperback
Brain Games - To Go - Forensic Puzzles: Investigate Crime Puzzles - Match DNA and Fingerprints - Decode Clues - Figure Out Who Done It
Brain Games
Publications International Ltd
Paperback
The New York Times Take It with You Thursday Crosswords: 200 Medium Removable Puzzles
New York Times
Paperback
The New York Times Take It with You Tuesday Crosswords: 200 Easy Removable Puzzles
New York Times
Paperback
Brain Games - USA Word Search Puzzles (#5): Volume 5
Publications International Ltd
Brain Games
Paperback
Adult Activity Book: An Adult Activity Book Featuring Coloring, Sudoku, Word Search And Dot-To-Dot
Adult Activity Book
Paperback
Tricky Logic Puzzles for Adults: 130+ Difficult Puzzles to Challenge Your Brain
Clontz, Steven
Paperback
Would You Rather Book For Kids - 300+ Hilarious, Silly, and Challenging Questions To Make You Laugh
Ellis, Stephen J.
Paperback
Brain Games - To Go - Stress Free: Sudoku Puzzles
Brain Games
Publications International Ltd
Paperback
Word Search For Adults: Large Print Word Search Puzzles For Seniors, Adults and Teens. Themed Word Find Adult Activity Book
Puzzleplay Press
Paperback
Woofdle: 75 Canine Crime Puzzles to Solve Using Logic, Skill & the Power of Walkies
Ayres, Laura Jayne
Moore, Gareth
Paperback
Brain Games - Large Print Sudoku Puzzles (Swoosh)
Publications International Ltd
Brain Games
Paperback
Brain Games - Unusual Knowledge Word Search Puzzles: With Trivia & Facts Science, History & Pop Culture Spiral Bound Activity Book Gift for Adults, Se
Publications International Ltd
Brain Games
Paperback
Healthy Brain Origami: Fold Decorative Paper Models That Boost Mental Acumen and Keep Your Brain Active! (Craft a Happier, Healthier Brain!)
Ohara, Mayumi
Yokoi, Katsushi
Paperback
Brain Games - Word Searches - Large Print (Purple) (Large Print Edition)
Publications International Ltd
Brain Games
Paperback
More Large Print Logic Puzzles: 50 Logic Grid Puzzles: Contains fun puzzles in font size 16pt (Large Print Edition)
High, Suzanne
Paperback
Sherlock Holmes Escape Book: The Adventure of the London Waterworks: Solve the Puzzles to Escape the Pages
Sacker, Ormond
Paperback
Brain Games - Sherlock Holmes Puzzles (#1): Over 100 Cerebral Challenges Inspired by the World's Greatest Detective! Volume 1
Publications International Ltd
Brain Games
Paperback
Brain Games - 2 Books in 1 - Sudoku (Large Print Edition)
Publications International Ltd
Brain Games
Paperback
417 More Games, Puzzles & Trivia Challenges Specially Designed to Keep Your Brain Young
Linde, Nancy
Paperback
The Little Book of Big Brain Games: 517 Ways to Stretch, Strengthen and Grow Your Brain
Moscovich, Ivan
Paperback
100 Stress-Relieving Crossword Puzzles to Sharpen Your Mind: Presented by Maria Shriver, Patrick Schwarzenegger, and Mosh (Revised and Updated)
Schwarzenegger, Patrick
Mosh
Shriver, Maria
Paperback
The New York Times Classic Crossword Puzzles (Black and White): 100 Puzzles Edited by Will Shortz
New York Times
Hardcover
Brain Games - Crime Scene Investigation (Csi) Puzzles
Brain Games
Publications International Ltd
Paperback
Brain Games - Large Print Outsmart Dementia Puzzles: Prevent Alzheimer's Disease and Maintain Cognitive Health
Publications International Ltd
Brain Games
Paperback
Brain Games - Codeword Puzzle: Unscramble the Alphabet, Fill in the Grid, and Solve the Puzzle!
Publications International Ltd
Brain Games
Paperback
Brain Games - Sudoku Large Print (Red) (Large Print Edition)
Publications International Ltd
Brain Games
Paperback
The New York Times Will Shortz Presents Kenken: 300 Easy to Hard Puzzles That Make You Smarter
New York Times
Miyamoto, Tetsuya
Kenken Puzzle LLC
Paperback
Killer Puzzles: Crosswords, Cyphers, Cryptograms, and More for the True Crime Obsessed
Thorne, Archer
Paperback
Brain Games - Crosswords Large Print (Green) (Large Print Edition)
Brain Games
Publications International Ltd
Paperback
The Language Lover's Puzzle Book: A World Tour of Languages and Alphabets in 100 Amazing Puzzles
Bellos, Alex
Paperback
100 Stress-Relieving Word Search Puzzles to Sharpen Your Mind: Presented by Maria Shriver, Patrick Schwarzenegger, and Mosh
Schwarzenegger, Patrick
Mosh
Shriver, Maria
Paperback
Brain Games - Miracles of Jesus Word Search Puzzles
Publications International Ltd
Brain Games
Paperback