Hashi

Hashi
Author: Alastair Chisholm
Publisher: Crombie Jardine
Total Pages: 256
Release: 2006-05-01
Genre:
ISBN: 9781905102792

Hashi (short for Hashiwokakero, meaning "build bridges") is a new logic puzzle from Japan. In Hashi, the goal is to join islands together with up to two vertical or horizontal bridges, so that every island is connected. The larger in number value the island, the more bridges connect to it (an island of size 6 must be connected to 6 bridges), and no bridge can cross another. Successful logic puzzles have certain things in common: a unique game with one solution, easy to pick up, fun and challenging, able to be put down and picked back up again. Hashi has all these qualities, and puzzle master Alastair Chisholm has created 201 puzzles in three levels of difficulty--Easy, Medium, and Hard; you'll be thinking about them even when you're not working on them.

Jigsaw Sudoku: 400 Hard Jigsaw Sudoku Puzzles

Jigsaw Sudoku: 400 Hard Jigsaw Sudoku Puzzles
Author: Mindful Puzzle Books
Publisher: Irregularly Shaped Sudoku
Total Pages: 232
Release: 2018-10-11
Genre: Games & Activities
ISBN: 9781728678412

Also the puzzle may contain the regions of random (irregular) shape; this variant is called Jigsaw Sudoku ("Geometry Sudoku," "Geometry Number Place," "Irregular Sudoku," "Kikagaku Nanpure").

Sudoku Variants

Sudoku Variants
Author: Conceptis Puzzles
Publisher: Sterling Publishing Company, Inc.
Total Pages: 154
Release: 2006-08
Genre: Games & Activities
ISBN: 9781402741111

Everyone knows sudoku is enjoyable--but these addictive puzzles come in endless variations too! They range from simple to very difficult, and can take almost no time to finish...or require many hours. This entertaining collection showcases a wide range of possibilities, offering solvers who have become accustomed to the standard rules and grids an exciting new challenge. Select from Mega Sudokus that provide a real workout; Diagonals or Odd and Even versions with extra constraints; Sum Sudokus that merge with kakuro; and Multisudoku with overlapping puzzles. There's something for every level--12 x 12 puzzles, ones with irregularly shaped areas, even Mini Sudoku--and lots of fun for everyone.

Jigsaw Sudoku Puzzle Book for Adults

Jigsaw Sudoku Puzzle Book for Adults
Author: Puzzle King Publishing
Publisher: Independently Published
Total Pages: 110
Release: 2020-08-15
Genre:
ISBN:

Jigsaw Sudoku Puzzle Book If you like Sudoku but want an extra challenge then you will love Jigsaw Sudoku. The goal of Jigsaw Sudoku (also know as irregular sudoku) is similar to normal Sudoku. You must place each of the numbers 1 to 9 into each of the rows and columns. However in Jigsaw Sudoku the normal 3x3 Sudoku regions are instead replaced by jigsaw-like regions of different sizes (outlined with the bold lines) that must contain every number. This Jigsaw Sudoku Puzzle Book is a fun way for teens or adults to sharpen their minds and test their logic. Including 156 Puzzles of varying difficulty to keep you entertained for hours. Book Features: Loads of Puzzles: 48 Easy, 54 Medium and 54 Hard Large print - 2 Puzzles per page - Plenty of Space Suitable for all Levels: Beginner to Expert Perfectly Sized - 7" x 10" Premium Matte Color cover design Puzzle King Publishing: Puzzle Books for Everyone!

Loco Sudoku

Loco Sudoku
Author: Djape
Publisher: Puzzlewright
Total Pages: 0
Release: 2015-09
Genre:
ISBN: 9781454916499

These sudoku are LOCO! Solvers who enjoy shaking things up a little will go crazy over these 83 challenging puzzles. Each one actually includes five overlapping sudoku, all with different variants. In order to finish the entire thing, you'll have to keep on jumping back and forth between the five. It's out-of-control fun!

Hard Sudoku Puzzle Book Volume 4

Hard Sudoku Puzzle Book Volume 4
Author: Robert Hunt
Publisher: Createspace Independent Publishing Platform
Total Pages: 90
Release: 2017-01-06
Genre:
ISBN: 9781542392730

This Hard Sudoku Puzzle Book Volume 4 has been designed for fun for all ages and can be played by children, adults and senior citizens alike - suitable for all advanced sudoku puzzle lovers! Perfect for stimulating the mind and improving reasoning skills, this book contains 200 hard difficulty level sudoku puzzles with solutions for each of the puzzles. A 'Beginners Guide' is included providing valuable tips for solving the puzzles. Whatever your age, you'll love this Hard Sudoku Puzzle Book! This puzzle book is an ideal challenge for the advanced Sudoku player and will provide hours of puzzling fun and enjoyment.

Very Hard Sudoku Puzzle Book Volume 4

Very Hard Sudoku Puzzle Book Volume 4
Author: Robert Hunt
Publisher: Createspace Independent Publishing Platform
Total Pages: 90
Release: 2017-01-07
Genre:
ISBN: 9781542414524

This Very Hard Sudoku Puzzle Book Volume 4 has been created for fun for all ages and can be played by children, adults and senior citizens alike - suitable for all advanced sudoku puzzle lovers!. Perfect for stimulating the mind and improving reasoning skills, this book contains 200 very hard difficulty level sudoku puzzles with solutions for each of the puzzles. A 'Beginners Guide' is included providing valuable tips for solving the puzzles. Whatever your age, you'll love this Very Hard Sudoku Puzzle Book! This puzzle book is an ideal challenge for the advanced Sudoku player and will provide hours of puzzling fun and enjoyment.

Very Hard Sudoku Puzzles Volume 4

Very Hard Sudoku Puzzles Volume 4
Author: Robert Hunt
Publisher: Createspace Independent Publishing Platform
Total Pages: 90
Release: 2017-01-08
Genre:
ISBN: 9781542415316

This Very Hard Sudoku Puzzle Book Volume 4 has been created for fun for all ages and can be played by children, adults and senior citizens alike - suitable for all advanced sudoku puzzle lovers! Perfect for stimulating the mind and improving reasoning skills, this book contains 200 very hard difficulty level sudoku puzzles with solutions for each of the puzzles. A 'Beginners Guide' is included providing valuable tips for solving the puzzles. Whatever age, people everywhere love this Very Hard Sudoku Puzzle book! This puzzle book is an ideal challenge for the advanced Sudoku player and will provide hours of puzzling fun and enjoyment.

Sudoku Puzzles Very Hard Volume 4

Sudoku Puzzles Very Hard Volume 4
Author: Robert Hunt
Publisher: Createspace Independent Publishing Platform
Total Pages: 90
Release: 2017-01-07
Genre:
ISBN: 9781542410014

This very hard sudoku puzzle book has been created for fun for all ages and can be played by children, adults and senior citizens alike - suitable for all advanced sudoku puzzle lovers! Perfect for stimulating the mind and improving reasoning skills, this book contains 200 very hard difficulty level sudoku puzzles with solutions for each of the puzzles. A 'Beginners Guide' is included providing valuable tips for solving the puzzles. Whatever age, people everywhere love these very hard sudoku puzzles! This puzzle book is an ideal challenge for the advanced Sudoku player and will provide hours of puzzling fun and enjoyment.

Sudoku Puzzle Book, 500 Extra Hard Puzzles

Sudoku Puzzle Book, 500 Extra Hard Puzzles
Author: Sudoku Books
Publisher: Createspace Independent Publishing Platform
Total Pages: 172
Release: 2017-01-18
Genre:
ISBN: 9781542614887

Relieve boredom and stress by playing Sudoku. This big book contains plenty of puzzles to keep you busy for many hours. There are 4 puzzles per page and solutions are at the end of the book.