Killer Sudoku - 400 Normal Puzzles 6x6


Book Description

Killer Sudoku is a mix of Sudoku and Kakuro. Your goal is the same as in regular sudoku: fill every row, column and 3x2 region with the numbers 1-6 once. The difference is how you arrive at those numbers.The objective is to fill the grid with numbers from 1 to 6 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once.The sum of all numbers in a cage must match the small number printed in its corner.No number appears more than once in a cage. (This is the standard rule for killer sudoku, and implies that no cage can include more than 6 cells.




Killer Sudoku - 400 Hard Puzzles 6x6


Book Description

Killer Sudoku is a mix of Sudoku and Kakuro. Your goal is the same as in regular sudoku: fill every row, column and 3x2 region with the numbers 1-6 once. The difference is how you arrive at those numbers.The objective is to fill the grid with numbers from 1 to 6 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once.The sum of all numbers in a cage must match the small number printed in its corner.No number appears more than once in a cage. (This is the standard rule for killer sudoku, and implies that no cage can include more than 6 cells.




Killer Sudoku - 400 Easy Puzzles 6x6


Book Description

Killer Sudoku is a mix of Sudoku and Kakuro. Your goal is the same as in regular sudoku: fill every row, column and 3x2 region with the numbers 1-6 once. The difference is how you arrive at those numbers.The objective is to fill the grid with numbers from 1 to 6 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once.The sum of all numbers in a cage must match the small number printed in its corner.No number appears more than once in a cage. (This is the standard rule for killer sudoku, and implies that no cage can include more than 6 cells.




Suguru Puzzle Books - 400 Easy to Master Puzzles 6x6


Book Description

Suguru (also known as "Number Blocks") is a logic puzzle that has simple rules, but which provides sufficient challenges to satisfy the most enthusiastic solvers! The task consists of a rectangular or square grid divided into regions. Each region must be filled with each of the digits from 1 to the number of cells in the region. Cells with the same digits must not be orthogonally or diagonally adjacent. Even though the rules are simple, you will need all your skills to solve it.




Killer Sudoku - 400 Master Puzzles 6x6


Book Description

Killer Sudoku is a mix of Sudoku and Kakuro. Your goal is the same as in regular sudoku: fill every row, column and 3x2 region with the numbers 1-6 once. The difference is how you arrive at those numbers.The objective is to fill the grid with numbers from 1 to 6 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once.The sum of all numbers in a cage must match the small number printed in its corner.No number appears more than once in a cage. (This is the standard rule for killer sudoku, and implies that no cage can include more than 6 cells.




Learning to Play


Book Description

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.




Masyu and Sudoku


Book Description

Connecting these puzzle cells involves using your brain cells to the max! Masyu features a series of black and white circles arranged in a grid; the object is to join them in a single, unbroken loop with a line that passes through every circle. Of course, there s a twist: there are special rules about how the line may make 90-degree turns when it passes through a black or a white circle. It s like a maze with no walls, and there s only one solutiontry to find it! In addition to the 90 masyu, there are 45 sudoku, too."




Sudoku Variants


Book Description

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.




The Black Man's President


Book Description

Frederick Douglass called the martyred president "emphatically the black man's president” as well as “the first who rose above the prejudice of his times and country.” This narrative history of Lincoln’s personal interchange with Black people over the course his career reveals a side of the sixteenth president that, until now, has not been fully explored or understood. In a little-noted eulogy delivered shortly after Lincoln's assassination, Frederick Douglass called the martyred president "emphatically the black man's president," the "first to show any respect for their rights as men.” To justify that description, Douglass pointed not just to Lincoln's official acts and utterances, like the Emancipation Proclamation or the Second Inaugural Address, but also to the president’s own personal experiences with Black people. Referring to one of his White House visits, Douglass said: "In daring to invite a Negro to an audience at the White House, Mr. Lincoln was saying to the country: I am President of the black people as well as the white, and I mean to respect their rights and feelings as men and as citizens.” But Lincoln’s description as “emphatically the black man’s president” rests on more than his relationship with Douglass or on his official words and deeds. Lincoln interacted with many other African Americans during his presidency His unfailing cordiality to them, his willingness to meet with them in the White House, to honor their requests, to invite them to consult on public policy, to treat them with respect whether they were kitchen servants or leaders of the Black community, to invite them to attend receptions, to sing and pray with them in their neighborhoods—all those manifestations of an egalitarian spirit fully justified the tributes paid to him by Frederick Douglass and other African Americans like Sojourner Truth, who said: "I never was treated by any one with more kindness and cordiality than were shown to me by that great and good man, Abraham Lincoln.” Historian David S. Reynolds observed recently that only by examining Lincoln’s “personal interchange with Black people do we see the complete falsity of the charges of innate racism that some have leveled against him over the years.”




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.