{"title":"Sudoku","description":"","products":[{"product_id":"ninja-sudoku-challenge-by-roland-hall","title":"Ninja Sudoku Challenge by Roland Hall","description":"\u003cdiv class=\"productInfo\"\u003e\n\u003cdiv class=\"productContentWrap\"\u003e\n\u003cdiv class=\"productContent\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cdiv class=\"productDescription\"\u003eDo you love sudoku? Do you want to test your skills with a unique maths and logic game? If you do, then you will love this collection of puzzles ideal for you to do anytime, anywhere. Unique, fun, and interactive, this collection of brain-teasing puzzles can be played offline and will keep you entertained for hours and hours. Whether you are looking for puzzle practice to train your brain, or seeking a screen-free offline alternative to online puzzles, or a sudoku challenge like no other this collection will have you enthralled.\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"purchaseBlock\" data-role=\"popover\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"singleTitleContainer\" data-ean=\"9781836004875\"\u003e\n\u003cdiv class=\"pricing\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePaperback \u003cbr\u003ePublication: 31 Jul 2025, Quarto\u003c\/em\u003e\u003cem\u003e\u003cbr\u003eISBN: 9781836004875\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eExtent: 256 pages\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Bookshop","offers":[{"title":"Default Title","offer_id":57692551512446,"sku":null,"price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0892\/5225\/files\/9781836004875.jpg?v=1784194788"},{"product_id":"sudoku-challenge-by-roland-hall","title":"Sudoku Challenge by Roland Hall","description":"\u003cdiv class=\"productInfo\"\u003e\n\u003cdiv class=\"productContentWrap\"\u003e\n\u003cdiv class=\"productContent\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cdiv class=\"productDescription\"\u003e\n\u003cspan\u003eDo you love sudoku? Do you want to test your skills with a unique maths and logic game? If you do, then you will love this collection of over 200 puzzles ideal for you to do anytime, anywhere. In Sudoku Challenge, you fill in the puzzles with the usual rules, but when the grid is complete, you then use the clue numbers to work out how to calculate the challenge number.  Unique, fun, and interactive this collection of brain-teasing puzzles, can be played offline and will keep you entertained for hours and hours. Whether you are looking for puzzle practiceto train your brain, or seeking a screen-free offline alternative to online puzzles, or a sudoku challenge like no other this collection will have you enthralled.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"purchaseBlock\" data-role=\"popover\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"singleTitleContainer\" data-ean=\"9781836004875\"\u003e\n\u003cdiv class=\"pricing\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePaperback \u003cbr\u003ePublication: 14 Sept 2023, Quarto\u003c\/em\u003e\u003cem\u003e\u003cbr\u003eISBN: 9780711290686\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eExtent: 224 pages\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Bookshop","offers":[{"title":"Default Title","offer_id":57692571631998,"sku":null,"price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0892\/5225\/files\/9780711290686.jpg?v=1784195169"},{"product_id":"the-times-killer-su-doku-book-22-200-lethal-su-doku-puzzles","title":"The Times Killer Su Doku Book 22: 200 Lethal Su Doku Puzzles","description":"\u003cdiv class=\"productInfo\"\u003e\n\u003cdiv class=\"productContentWrap\"\u003e\n\u003cdiv class=\"productContent\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cdiv class=\"productDescription\"\u003e\n\u003cspan\u003eChallenge yourself with number puzzles. The latest volume in the hugely popular Killer Su Doku series from The Times, featuring the highest-quality puzzles with an extra element of arithmetic. These puzzles will test your skills to the limit, adding the challenge of arithmetic and taking Su Doku to a new and even deadlier level of difficulty.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe puzzles use the same 9x9 grid as Su Doku but with an added mathematical challenge. The aim is not only to complete every row, column and cube so that it contains the numbers 1-9, it is also necessary to ensure that the outlined cubes add up to the same number as well. With 200 new Moderate, Tricky, Tough and Deadly Killer Su Doku puzzles, there is no chance to ease yourself in with simple puzzles.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFor those who like to live dangerously and push beyond their mental comfort zone, steel yourself for The Times' next, terribly tough instalment.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"purchaseBlock\" data-role=\"popover\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"singleTitleContainer\" data-ean=\"9781836004875\"\u003e\n\u003cdiv class=\"pricing\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePaperback \u003cbr\u003ePublication: 21 May 2026, Harper Collins \u003c\/em\u003e\u003cem\u003e\u003cbr\u003eISBN: 9780008748944\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eExtent: 288 pages\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Bookshop","offers":[{"title":"Default Title","offer_id":57692775481726,"sku":null,"price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0892\/5225\/files\/9780008748944.jpg?v=1784201578"},{"product_id":"the-times-super-fiendish-su-doku-book-13-200-challenging-puzzles","title":"The Times Super Fiendish Su Doku Book 13: 200 Challenging Puzzles","description":"\u003cdiv class=\"productInfo\"\u003e\n\u003cdiv class=\"productContentWrap\"\u003e\n\u003cdiv class=\"productContent\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cdiv class=\"productDescription\"\u003e\n\u003cspan\u003eChallenge yourself with number puzzles. Previously unpublished quality Su Doku grids from The Times, which help develop your skills to take on Extreme Su Doku. The 200 puzzles in this collection of treacherously difficult puzzles will stretch even the most advanced Su Doku enthusiast.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eYou will need to use all of your best solving techniques to get to the end of this testing challenge. The puzzles in the collection are of the highest quality and are perfect for the advanced solver in need of a constant supply of ultra-difficult puzzles. Guaranteed to provide hours of mind-stretching entertainment.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"purchaseBlock\" data-role=\"popover\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"singleTitleContainer\" data-ean=\"9781836004875\"\u003e\n\u003cdiv class=\"pricing\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePaperback \u003cbr\u003ePublication: 21 May 2026, Harper Collins \u003c\/em\u003e\u003cem\u003e\u003cbr\u003eISBN: 9780008748951\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eExtent: 256 pages\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Bookshop","offers":[{"title":"Default Title","offer_id":57692793471358,"sku":null,"price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0892\/5225\/files\/9780008748951.jpg?v=1784201629"},{"product_id":"the-times-bumper-book-of-fiendish-su-doku-book-2-360-challenging-su-doku-puzzles","title":"The Times Bumper Book of Fiendish Su Doku book 2: 360 Challenging Su Doku Puzzles","description":"\u003cdiv class=\"productInfo\"\u003e\n\u003cdiv class=\"productContentWrap\"\u003e\n\u003cdiv class=\"productContent\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cdiv class=\"productDescription\"\u003e\n\u003cspan\u003eThe ideal gift for Su Doku enthusiasts Posing a greater challenge than standard Su Doku puzzles, this bumper collection of 360 puzzles is for dedicated Su Doku solvers. Selected from the pages of The Times these puzzles will keep even the most eager enthusiasts entertained for hours. Fiendish Su Doku, takes you to the next level.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePuzzles in this collection are taken from Times Fiendish Su Doku Books 1, 2 and 3.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"purchaseBlock\" data-role=\"popover\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"singleTitleContainer\" data-ean=\"9781836004875\"\u003e\n\u003cdiv class=\"pricing\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePaperback \u003cbr\u003ePublication: 5 Nov 2026, Harper Collins \u003c\/em\u003e\u003cem\u003e\u003cbr\u003eISBN: 9780008815929\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eExtent: 448 pages\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Bookshop","offers":[{"title":"Default Title","offer_id":57692798681470,"sku":null,"price":9.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0892\/5225\/files\/9780008815929.jpg?v=1784201819"},{"product_id":"the-times-samurai-su-doku-15-100-extreme-puzzles-for-the-fearless-su-doku-warrior","title":"The Times Samurai Su Doku 15: 100 Extreme Puzzles for the Fearless Su Doku Warrior","description":"\u003cdiv class=\"productInfo\"\u003e\n\u003cdiv class=\"productContentWrap\"\u003e\n\u003cdiv class=\"productContent\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cdiv class=\"productDescription\"\u003e\n\u003cspan\u003eChallenge yourself with number puzzles For anyone who loves the challenge of Su Doku but manages to solve them within minutes, you can now enjoy the extended mental workout and ultimate endurance test of a five grid interlinked system. This is Su Doku multiplied: every column, row and 3x3 box must contain the digits 1 to 9. Where the puzzles overlap, the rows and columns do not go beyond their usual 9x9 length but the interlocking boxes give you more clues – and more complexity.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWith another 100 new Samurai puzzles to vex you for hours, lose yourself in the four levels of this book: 10 Easy40 Mild40 Difficult10 Super difficult Even the speediest of Su Doku solvers will be agonising over these ultra-complex, extended brainteasers. These are the most difficult Su Doku puzzles in The Times range.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"purchaseBlock\" data-role=\"popover\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"singleTitleContainer\" data-ean=\"9781836004875\"\u003e\n\u003cdiv class=\"pricing\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePaperback \u003cbr\u003ePublication: 5 Nov 2026, Harper Collins \u003c\/em\u003e\u003cem\u003e\u003cbr\u003eISBN: 9780008815943\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eExtent: 176 pages\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Bookshop","offers":[{"title":"Default Title","offer_id":57692801991038,"sku":null,"price":11.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0892\/5225\/files\/9780008815943.jpg?v=1784201874"},{"product_id":"artisanal-sudoku-150-handcrafted-puzzles-that-go-beyond-the-ordinary-by-james-sinclair","title":"Artisanal Sudoku: 150 Handcrafted Puzzles That Go Beyond the Ordinary by James Sinclair","description":"\u003cdiv class=\"productInfo\"\u003e\n\u003cdiv class=\"productContentWrap\"\u003e\n\u003cdiv class=\"productContent\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cdiv class=\"productDescription\"\u003e\n\u003cspan\u003eEye-catchingly elegant, satisfyingly tricky logic puzzles! Sudoku is one of the most popular, ubiquitous puzzles around-but most of the sudoku out there are computer-generated, with no thought given to the solving experience, leading to repetitive, forgettable puzzles. James Sinclair wants to show the world all the possibilities that sudoku has to offer, with colorful, carefully crafted grids that lead the solver along a trail of satisfying \"aha!\" moments. The puzzles start out gently, introducing new twists and increasing in difficulty as the book goes on, with illustrated hints making the book accessible to all skill levels.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-role=\"popover\" class=\"purchaseBlock\"\u003e\n\u003cdiv class=\"wrap\"\u003e\n\u003cdiv data-ean=\"9781836004875\" class=\"singleTitleContainer\"\u003e\n\u003cdiv class=\"pricing\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003ePaperback \u003cbr\u003ePublication: 19 Mar 2026, Union \u003c\/em\u003e\u003cem\u003e\u003cbr\u003eISBN: 9781454964872\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eExtent: 224 pages\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Bookshop","offers":[{"title":"Default Title","offer_id":57692817359230,"sku":null,"price":14.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/0892\/5225\/files\/9781454964872.jpg?v=1784202277"}],"url":"https:\/\/www.davids-bookshops.co.uk\/collections\/sudoku.oembed","provider":"David's Bookshop","version":"1.0","type":"link"}