The Art of Puzzles


Book Description

The Art of Puzzles is a collection of mental masterpieces from the world's most talented puzzle designers. With ten genres of logic puzzles and over 270 puzzles in total, this book has a great mix of challenges including shading puzzles (Tapa and Nurikabe), loop puzzles (Masyu and Slitherlink), number placement puzzles (Skyscrapers and TomTom), object placement puzzles (Star Battle and Battleships), and region division puzzles (Cave and Fillomino). Each section has a mix of very easy to fiendishly hard puzzles, with hints for every puzzle to help you to become a better logic puzzler.




Constraint Solving and Planning with Picat


Book Description

This book introduces a new logic-based multi-paradigm programming language that integrates logic programming, functional programming, dynamic programming with tabling, and scripting, for use in solving combinatorial search problems, including CP, SAT, and MIP (mixed integer programming) based solver modules, and a module for planning that is implemented using tabling. The book is useful for undergraduate and graduate students, researchers, and practitioners.




Pattern-Based Constraint Satisfaction and Logic Puzzles (Second Edition)


Book Description

""Pattern-Based Constraint Satisfaction and Logic Puzzles (Second Edition)"" develops a pure logic, pattern-based perspective of solving the finite Constraint Satisfaction Problem (CSP), with emphasis on finding the ""simplest"" solution. Different ways of reasoning with the constraints are formalised by various families of ""resolution rules,"" each of them carrying its own notion of simplicity. A large part of the book illustrates the power of the approach by applying it to various popular logic puzzles. It provides a unified view of how to model and solve them, even though they involve very different types of constraints: obvious symmetric ones in Sudoku, non-symmetric but transitive ones in Futoshiki, topological and geometric ones in Map colouring, Numbrix and Hidato, non-binary arithmetic ones in Kakuro and both non-binary and non-local ones in Slitherlink. It also shows that the most familiar techniques for these puzzles can be understood as mere application-specific presentations of the general rules.




Expert Sudoku


Book Description

Expert Sudoku is an all-new collection of handcrafted puzzles for the expert puzzle-solver. This is the book that challenges skilled solvers and Sudoku-lovers at the top level—every one of the 320 puzzles is rated "difficult." Good luck!




Puzzlewright Guide to Solving Sudoku


Book Description

Sudoku designers the world over will weep and gnash their teeth at the revelations in this comprehensive guide to cracking the addictive puzzles--but solvers will find it absolutely invaluable as they seek to improve their skills. Even experts don't know all these tricks: hidden pairs, naked pairs, X-wings, jellyfish, squirmbag, bivalue and bilocation graphs, and chains, plus the exclusive Gordonian logic methods that turn the toughest puzzles into a breeze. There are hundreds of sudoku to practice on. A special addition is a reprint of the very first sudoku ever published "




Battleship Sudoku


Book Description

Battleship - the classic HASBRO board game - has been popular for years. Sudoku, of course, is the craze that's won millions of converts. This title brings two games together to create a novel hybrid that's a real brain-buster. It includes boats that have numbers and aims to place the ships and complete the sudoku at the same time.




The Art of Sudoku


Book Description

You've never seen Sudoku like this! In The Art of Sudoku you'll find 120 hand-crafted masterpieces from World Sudoku Champion Thomas Snyder, with artistic and logical themes that could never have been produced by random computer generation. Whether you're a sudoku novice or a sudoku grandmaster, The Art of Sudoku will open your eyes to the amazing possibilities of this numbers puzzle and leave you wanting more.




Krazydad Two Not Touch Volume 1: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times


Book Description

From krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Battle puzzles. These puzzles will provide a healthy diversion for you in these challenging times, and help you make it to the other side with your sanity intact! Includes an instructive and pithy tutorial.




The Million Word Crossword Dictionary (2nd Edition)


Book Description

With more than 1,300,000 answers, this volume contains more than twice as many words as any other crossword dictionary. Meticulously compiled by two crossword professionals with a combined fifty years in the field and based on a massive analysis of current crosswords, there has never been a crossword dictionary with the breadth, depth, and currency of this one. From Jim Carrey to Sister Carrie, Homer Simpson t o Homer's Iliad, the wide-ranging entries include 500,000+ synonyms, 3,000+ literary works, 3,000+ films, 20,000+ famous people from all fields, and more than 50,000 fill-in-the-blank clues so popular in today's crosswords. Featuring an introduction by New York Times crossword editor Will Shortz, The Million Word Crossword Dictionary makes every other crossword dictionary obsolete. What's new in the second edition? This updated edition offers thousands of new entries, including slang terms; brand names; celebrity names; and the latest films, novelists' works, sports Hall of Famers, automobile models, and more. The new, larger type size makes finding the answers easier than ever. And now you can sign up for free annual updates, with all the new clues and answers compiled after the book's publication.




The Art of Prolog, second edition


Book Description

This new edition of The Art of Prolog contains a number of important changes. Most background sections at the end of each chapter have been updated to take account of important recent research results, the references have been greatly expanded, and more advanced exercises have been added which have been used successfully in teaching the course. Part II, The Prolog Language, has been modified to be compatible with the new Prolog standard, and the chapter on program development has been significantly altered: the predicates defined have been moved to more appropriate chapters, the section on efficiency has been moved to the considerably expanded chapter on cuts and negation, and a new section has been added on stepwise enhancement—a systematic way of constructing Prolog programs developed by Leon Sterling. All but one of the chapters in Part III, Advanced Prolog Programming Techniques, have been substantially changed, with some major rearrangements. A new chapter on interpreters describes a rule language and interpreter for expert systems, which better illustrates how Prolog should be used to construct expert systems. The chapter on program transformation is completely new and the chapter on logic grammars adds new material for recognizing simple languages, showing how grammars apply to more computer science examples.