Will Shortz Presents Hard Sudoku Volume 1

Will Shortz Presents Hard Sudoku Volume 1
Author: Will Shortz
Publisher: St. Martin's Griffin
Total Pages: 319
Release: 2018-02-13
Genre: Games & Activities
ISBN: 1250161029

The first in a new series: hard puzzles for serious sudoku solvers. Do you have what it takes? These 200 challenging sudoku puzzles from Will Shortz will keep your mind sharp! Features: - 200 hard puzzles - Big grids for easy solving - Introduction by legendary Puzzlemaster Will Shortz

The Times Ultimate Killer Su Doku Book 12: 200 of the Deadliest Su Doku Puzzles (the Times Su Doku)

The Times Ultimate Killer Su Doku Book 12: 200 of the Deadliest Su Doku Puzzles (the Times Su Doku)
Author: The Times Mind Games
Publisher: Times Books
Total Pages: 0
Release: 2020-01-09
Genre:
ISBN: 9780008342937

Specially compiled to provide the most deadly Su Doku challenge, this is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle.Prepare yourself for the toughest Su Doku challenge there is. These diabolically difficult Ultimate Killer Su Doku puzzles will really put your brainpower to the test as you 'warm up' with the 100 Deadly Killer puzzles before steeling yourself to take on the 100 Extra Deadly Su Dokus. Are you ready for the challenge?Not for the faint-hearted. The puzzles use the same 9x9 grid as a regular Su Doku, but have an extra mathematical element that multiplies the challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1 to 9, but also to make sure that the outlined sections, called cages, add up to the number given in each cage.Warning: Not suitable for amateur puzzlers!

The GCHQ Puzzle Book II

The GCHQ Puzzle Book II
Author: GCHQ
Publisher: Penguin UK
Total Pages: 388
Release: 2018-10-18
Genre: Games & Activities
ISBN: 0241365457

Train your brain with these fiendishly difficult puzzles, the perfect companion for anyone wanting to keep their mind busy 'Fiendishly tricky' Daily Mail With their first bestselling book, The GCHQ Puzzle Book, the UK's intelligence and security experts tested us with puzzles, codes and real-life entrance tests from their archives. Now, they are back with a NEW collection of head-scratching, mind-boggling and brain-bending puzzles that will leave you pondering for hours. For those who often found themselves stumped with the first book, The GCHQ Puzzle Book 2 offers even more starter puzzles to get those brains warmed up. Puzzle aficionados needn't worry though, as there is also an 'Even Harder' section to test everyone to their limits . . . Not only that, but in celebration of GCHQ's centenary, the puzzles in this new book sit alongside stories, facts and photos from the organisation's first 100 years at the heart of the nation's security. From the Government Code & Cipher School, to Bletchley Park, through to protecting against cyberattacks, the security of our country is in the hands of GCHQ. With this book, you get exclusive snapshots into the organisation that keeps us all safe. Train your brain to compete with the smartest in the country with this stimulating book of puzzles. If you haven't yet tested yourself with the first instalment of The GCHQ Puzzle Book, check it out now! 'This is the perfect gift to fuel his ludicrous presumption that he could have definitely been a spy - even better if he's already dog-eared the first version' Huffington Post

Sudoku X - 200 Easy to Master Puzzles 9x9

Sudoku X - 200 Easy to Master Puzzles 9x9
Author: Michael Brown
Publisher: Createspace Independent Publishing Platform
Total Pages: 52
Release: 2018-02-14
Genre:
ISBN: 9781983593000

Sudoku X (also known as "Diagonal Sudoku") is a placement puzzle. In this sudokus main diagonals also contain the digits 1 through 9. About Book This book introduces you to the amazing world of Sudoku X puzzles. It will help you understand the rules of this puzzle. This book is perfect for players of all skill levels and ages. You will find 200 exciting puzzles, both for beginners and for professionals. HOW TO PLAY It is a 9x9 grid, partially divided by black cells into compartments. The puzzle is most frequently a 9x9 grid made up of 3x3 subgrids (called "regions"). Some cells already contain numbers, known as "givens". The goal is to fill in the empty cells, one number in each, so that each column, row, and region contains the numbers 1 through 9 exactly once. Main diagonals also contain the digits 1 through 9. Each number in the solution therefore occurs only once in each of three "directions".

Learning to Play

Learning to Play
Author: Aske Plaat
Publisher: Springer Nature
Total Pages: 330
Release: 2020-12-23
Genre: Computers
ISBN: 3030592383

In this textbook the author takes as inspiration recent breakthroughs in game playing to explain how and why deep reinforcement learning works. In particular he shows why two-person games of tactics and strategy fascinate scientists, programmers, and game enthusiasts and unite them in a common goal: to create artificial intelligence (AI). After an introduction to the core concepts, environment, and communities of intelligence and games, the book is organized into chapters on reinforcement learning, heuristic planning, adaptive sampling, function approximation, and self-play. The author takes a hands-on approach throughout, with Python code examples and exercises that help the reader understand how AI learns to play. He also supports the main text with detailed pointers to online machine learning frameworks, technical details for AlphaGo, notes on how to play and program Go and chess, and a comprehensive bibliography. The content is class-tested and suitable for advanced undergraduate and graduate courses on artificial intelligence and games. It's also appropriate for self-study by professionals engaged with applications of machine learning and with games development. Finally it's valuable for any reader engaged with the philosophical implications of artificial and general intelligence, games represent a modern Turing test of the power and limitations of AI.

10 X 10 Sudoku

10 X 10 Sudoku
Author: Frank Longo
Publisher: Sterling Publishing Company, Inc.
Total Pages: 278
Release: 2006-08
Genre: Games & Activities
ISBN: 9781402740190

The sudoku craze keeps growing, with no end in sight--and as its popularity builds, fans keep an eagle eye out for fresh formats featuring their favorite puzzles. Here’s one sure to draw them in: sudokus that add a little spice to the mix by changing the standard 9 x 9 puzzles to 10 x 10. That means solvers get 100 squares to fill in instead of just 81! And the numbers go from zero to nine, rather than one to nine. Plus, the smaller sections within each grid are no longer 3 x 3: half the puzzles feature rectangular 5 x 2 boxes and the rest come in various random shapes, with heavy lines marking out the separate areas. It may seem daunting at first--but it’s fun!

The Mammoth Book of New Sudoku

The Mammoth Book of New Sudoku
Author: Gareth Moore
Publisher: Robinson
Total Pages: 544
Release: 2013-04
Genre: Logic puzzles
ISBN: 9781472100221

The ultimate Sudoku title: not just a puzzle book, but a comprehensive encyclopedia of the phenomenon to date, featuring every major variant ever created. Here you will find close to 150 different kinds of Sudoku in 495 puzzles, including Killer Sudoku, Skyscraper Sudoku and multi-grid Samurai Sudoku. No other collection of Sudoku comes close; this is without doubt the most definitive volume of Sudoku variants ever compiled. Another blockbuster from the puzzle master behind the bestselling Mammoth Book of Sudoku.

Killer Sudoku - 200 Hard to Master Puzzles 9x9

Killer Sudoku - 200 Hard to Master Puzzles 9x9
Author: Oliver Quincy
Publisher: Createspace Independent Publishing Platform
Total Pages: 138
Release: 2018-02-08
Genre:
ISBN: 9781985126657

About Book This book introduces you to the amazing world of Killer Sudoku puzzles. It will help you understand the rules of this puzzle. This book is perfect for players of all skill levels and ages. You will find 200 exciting puzzles, both for beginners and for professionals. HOW TO PLAY Killer Sudoku is a mix of Sudoku and Kakuro. Your goal is the same as in regular sudoku: fill every row, column and 3x3 region with the numbers 1-9 once. * Fill all rows, columns and 3x3 region with numbers exactly like in regular sudoku. * Every cell is a part of a cage, indicated by dotted line. * Make sure the cells can be added up to the sum of its cage. * Numbers cannot repeat within cage. * Numbers cannot repeat within a single row, column or 3x3 region. As Killer Sudoku belongs to the same class of puzzles as Sudoku the puzzle can demonstrate a wide spectrum of relative difficulty. The grade is determined by a combination of opportunities to solve at each stage and the difficulty of the strategy that grants each solution. Puzzles almost like Calcudoku, but unlike number cannot appear more than once in a block.

Windows 10 For Dummies

Windows 10 For Dummies
Author: Andy Rathbone
Publisher: John Wiley & Sons
Total Pages: 432
Release: 2015-08-10
Genre: Computers
ISBN: 1119049369

Illustrates the new features of Windows 10.

Killer Sudoku - 200 Easy to Master Puzzles 9x9

Killer Sudoku - 200 Easy to Master Puzzles 9x9
Author: Oliver Quincy
Publisher: Createspace Independent Publishing Platform
Total Pages: 138
Release: 2018-02-05
Genre:
ISBN: 9781985015388

About Book This book introduces you to the amazing world of Killer Sudoku puzzles. It will help you understand the rules of this puzzle. This book is perfect for players of all skill levels and ages. You will find 200 exciting puzzles, both for beginners and for professionals. HOW TO PLAY Killer Sudoku is a mix of Sudoku and Kakuro. Your goal is the same as in regular sudoku: fill every row, column and 3x3 region with the numbers 1-9 once. * Fill all rows, columns and 3x3 region with numbers exactly like in regular sudoku. * Every cell is a part of a cage, indicated by dotted line. * Make sure the cells can be added up to the sum of its cage. * Numbers cannot repeat within cage. * Numbers cannot repeat within a single row, column or 3x3 region. As Killer Sudoku belongs to the same class of puzzles as Sudoku the puzzle can demonstrate a wide spectrum of relative difficulty. The grade is determined by a combination of opportunities to solve at each stage and the difficulty of the strategy that grants each solution. Puzzles almost like Calcudoku, but unlike number cannot appear more than once in a block.