Keep your mind fit and flexible with a creative twist on sudoku! Research has shown that a great way to keep your memory and cognitive skills at their best is to learn challenging new things that require you to think. That book offers an accessible way to do just that, since almost everyone knows the basics of solving sudoku, but its variations are nearly endless, and just a small change in the rules can make a big difference in the solving experience. This book features a wide variety of sudoku variants (like Clone Sudoku, Even-Odd Sudoku, Killer Sudoku, and many more), designed to keep solvers on their toes, but presented accessibly, with easier puzzles leading into more complex variations. A freewheeling final chapter combines multiple variations in each puzzle.

From the New York Times bestselling author of The Signal and the Noise, the definitive guide to our era of risk―and the players raising the stakes

In the bestselling The Signal and the Noise, Nate Silver showed how forecasting would define the age of Big Data. Now, in this timely and riveting new book, Silver investigates "The River," or those whose mastery of risk allows them to shape―and dominate―so much of modern life.

These professional risk takers―poker players and hedge fund managers, crypto true-believers and blue-chip art collectors―can teach us much about navigating the uncertainty of the 21st century. By embedding within these worlds, Silver offers insight into a range of issues that affect us all, from the frontiers of finance to the future of AI.

The River has increasing amounts of wealth and power in our society, and understanding their mindset―including the flaws in their thinking―is key to understanding what drives technology and the global economy today. There are certain commonalities in this otherwise diverse group: high tolerance for risk; appreciation of uncertainty; affinity for numbers; skill at de-coupling; self-reliance and a distrust of the conventional wisdom. For the River, complexity is baked in, and the work is how to navigate it, without going beyond the pale.

Taking us behind-the-scenes from casinos to venture capital firms to meetings of the effective altruism movement, On the Edge is a deeply-reported, all-access journey into a hidden world of powerbrokers and risk takers.

How trained is your brain? Test your memory with these visually appealing puzzles! In this book, you'll get the chance to see how well you can remember what you just saw-and then practice your skills to try to improve them! First, study each photo for the given time limit, then turn the page for a list of questions about it. Some will be easy, asking about the most prominent images in the picture. Others, though, will be tricky, focusing on background details of fun, intricate images featuring flamenco dancers, tapestries, robot toys, emojis, gondolas, and much more. Test your memory and enjoy yourself... or solve with friends for a fun group activity!

Since its inception decades ago, the tabletop roleplaying game Dungeons & Dragons has offered an escape from the real world, the chance to enter distant realms, walk in new shoes, and be part of immersive, imaginative tales as they unfold. More so, in Thom James Carter’s opinion, it’s a perfect vessel for queer exploration and joy. Journey on, adventurer, as Dungeon Master Thom invites readers into the game’s exciting queer, utopian possibilities, traversing its history and contemporary evolution, the queer potential resting within gameplay, the homebrewers making it their own, stories from fellow players, and the power to explore and examine identity and how people want to lead their lives in real and imagined worlds alike. Grab a sword and get your dice at the ready, this queer adventure is about to begin. (This book is unofficial and unaffiliated with properties Wizards of the Coast and Dungeons & Dragons.)

Part of an exciting series of sturdy, square-box 1000-piece jigsaw puzzles from Flame Tree, featuring powerful and popular works of art. This new jigsaw will satisfy your need for a challenge, with the charming Moomin: A Dangerous Journey. This 1000 piece jigsaw is intended for adults and children over 13 years. Not suitable for children under 3 years due to small parts. Finished Jigsaw size 735 x 510mm/29 x 20 ins. Now includes an A4 poster for reference. The Dangerous Journey by Tove Jansson was originally published in 1977. Translated by Kingsley Hart, it tells the story of Susanna who finds a pair of magic spectacles that transport her from the field in which she is reading. She finds herself on an adventure filled with swamps, volcanoes , dried-up oceans and jungles that only the young girl's friends from Moominvalley can help her with. The popular characters Sniff, Snufkin and Mo omin all show up, however it is Too-Ticky who is the real hero of the st ory as she is able to use her balloon to finally bring Susanna back home. The beautiful watercolours throughout the picture book use fresh, bright colo urs to create the exciting world of Moominvalley. It is the last of Jansson's picture books, with two others published before it: The Book about Moomin, Mymble and Little My and Who Will Comfort Toffle?

Immerse yourself in the simple elegance of classic sudoku. In this book, prolific sudoku creator Frank Longo provides 100 classic sudoku, all from easy to medium difficulty, in three different sizes. Most of the book features standard 9x9 puzzles, but any time you'd like to spend a little more time in the world of sudoku, try one of the extra-large 10x10 or 12x12 puzzles! The difficulty levels are the same, but the expanded grids provide a refreshingly different feel.

Award-winning designer, illustrator, and creative director Michael Storrings captures the spirit of the holiday season all over the world with twelve illustrations; one each on twelve 80-piece puzzles. One puzzle a day for the 12 days of Christmas. Galison puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage. Inserts of the 12 full puzzle image is included. * Box Size: 11.25 x 8.25 x 5.25", 286 x 210 x 133 mm * Twelve 80 Piece Puzzles; 5 x 7", 127 x 178 mm * Includes 12 Puzzle Inserts with Full Puzzle Images * Ribbon Cut Pieces * Minimal Puzzle Dust

Amazing and Extraordinary Facts: Wales takes you on an absorbing journey around Wales to unearth the adventures, inventions, legends, firsts and birthplaces that have shaped the unique history of Wales. From the ancient mines of the Great Orme to the Severn crossing, the tsunami of the 1600s to the Turlough Lake, from bog snorkelling to Tom Jones' phone box, this intriguing compendium of facts and stories will give you a captivating insight into the Land of Song and the ideas and events that have shaped the individual identity of this remarkable country. Brief, accessible and entertaining pieces on a wide variety of subjects makes it the perfect book to dip in to. The amazing and extraordinary facts series presents interesting, surprising and little-known facts and stories about a wide range of topics which are guaranteed to inform, absorb and entertain in equal measure.

75 New York Times Sunday crossword puzzles: everyone's favorite! The Sunday crossword puzzle in The New York Times is the biggest one of the week! This collection has 75 of them, all edited by puzzlemaster Will Shortz and guaranteed to dazzle. So put on your Sunday best and let your cleverness shine with Sunday Best Crossword Puzzles! Features: - 75 themed Sunday New York Times crosswords - Portable packaging for solving on the go - Smart, fresh vocabulary, fun themes, and pop-culture references

The beginner's collection of a new trio of easy, medium, and hard crossword puzzle books from The New York Times, edited by Will Shortz If you love to relax with the New York Times' easiest puzzles, you'll be right at home with this collection of 200 Monday and Tuesday crosswords. - 200 of the easiest puzzles from the Times - Puzzles edited by crossword legend Will Shortz - Convenient portable paperback size for on-the-go solvin

Not one Earth, but an infinity of them, existing in parallel continua, their own paths, own histories, own futures, own mistakes. Most are unaware of the existence of a multiverse; but some parallels know that Earth is not alone, but mirrored.ZeroZero knows. It watches the parallels, ensures their stability. ZeroZero knows that instability spreads like a disease, infecting each parallel until a critical mass is reached and cataclysm is guaranteed.The Disruptors know. And they are intent on subverting the multiverse for their own ends, to destabilise countries, instigate wars, bring about destruction.The Valhalla Project was established to stop the Disruptors; to uncover their plans, identify their agents, and eliminate them. Their best agent is Luther Arkwright, unique in the multiverse, a powerful psychic, but himself unstable. Arkwright does not work alone. There are others. You.Based on Bryan Talbot's acclaimed graphic novels,Luther Arkwright: Roleplaying Across the Parallelsis a Mythras supplement introducing the Arkwright multiverse and all the rules needed for adventuring in countless parallel dimensions. This book contains game rules for contemporary character creation, psionics, technology, firearms, vehicles and more!

The Official Utterly Addictive Number-Placing Puzzle

Don't be spooked by these Difficult Su Doku puzzles Engaging your mind, improving your concentration, and helping you stay mentally fit, Su Doku is sure to please. With 150 brand-new puzzles to complete, you'll become a Su Doku master in no time