{"title":"Martial Arts Puzzles Ser","description":null,"products":[{"product_id":"black-belt-kakuro-book-conceptis-puzzles-9781402739361","title":"Black Belt Kakuro","description":"Kakuro language-free number puzzle that uses pure logic and requires just simple arithmetic to solve. This book is a part of a multilevel series of belt books, each containing 150 kakuros. These books take their cue from the belt colors in martial arts such as: white is for novices, and black for those consummate experts who crave a challenge.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49506509619473,"sku":"GOR004723901","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ NEW \/ GARDNERS","offer_id":49731632595217,"sku":"NGR9781402739361","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49933130072337,"sku":"CIN1402739362G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51024541974801,"sku":"NIN9781402739361","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":51170967322897,"sku":"GOR004797574","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ WELL_READ \/ INTERNAL","offer_id":51410229788945,"sku":"GOR014263430","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51416915181841,"sku":"CIN1402739362VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":52152935907601,"sku":"CIN1402739362A","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402739362.jpg?v=1777542774"},{"product_id":"second-degree-black-belt-sudoku-book-frank-longo-9781402737176","title":"Second-Degree Black Belt Sudoku","description":"Taking a page from karate - another Japanese art - each title in the series is graded by colour: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49512635728145,"sku":"GOR002289035","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ NEW \/ GARDNERS","offer_id":49733082677521,"sku":"NGR9781402737176","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50030839169297,"sku":"CIN1402737173G","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50031599223057,"sku":"CIN1402737173VG","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ WELL_READ \/ SBYB","offer_id":50373701861649,"sku":"CIN1402737173A","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ NEW \/ INGRAM","offer_id":52652241649937,"sku":"NIN9781402737176","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ WELL_READ \/ INTERNAL","offer_id":52901619106065,"sku":"GOR005883863","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":53353209266449,"sku":"GOR006128880","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402737173.jpg?v=1770289759"},{"product_id":"black-belt-sudoku-book-michael-rios-9781402735981","title":"Black Belt Sudoku","description":"At home, while commuting, during lunch hours...people around the world are eagerly working on Sudoku puzzles whenever and wherever they can!Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the Black Belt volume, filled with puzzles that will provide a sly, absorbing test for even the best, most proficient experts.It's impossible to complete only one sudoku at a time, because solving them is habit-forming!","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":49525613003025,"sku":"CIN1402735987G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49564433285393,"sku":"GOR005482029","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50763868668177,"sku":"CIN1402735987VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51024548036881,"sku":"NIN9781402735981","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ NEW \/ GARDNERS","offer_id":52848930849041,"sku":"NGR9781402735981","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":53128407875857,"sku":"GOR006033413","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402735987.jpg?v=1770289178"},{"product_id":"second-degree-black-belt-kakuro-book-conceptis-puzzles-9781402787973","title":"Second-Degree Black Belt Kakuro","description":"When just having a black belt in kakuro isnt enough, step up to the next level! These tricky puzzles require the very best skills-and give top solvers the complete mental workout they want.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49534691410193,"sku":"GOR005075496","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ NEW \/ GARDNERS","offer_id":49733436080401,"sku":"NGR9781402787973","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49851930870033,"sku":"CIN1402787979G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50763871289617,"sku":"CIN1402787979VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":52652638339345,"sku":"NIN9781402787973","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402787979.jpg?v=1777543492"},{"product_id":"white-belt-sudoku-book-michael-rios-9781402735950","title":"White Belt Sudoku","description":"At home, while commuting, during lunch hours...people around the world are eagerly working on Sudoku puzzles whenever and wherever they can! Created in the United States, these intriguing conundrums were originally called Number Place puzzles. Their recent rise in popularity began in Japan, where the name translated as sudoku. Here we've indicated the skill level necessary to complete each sudoku book in this series in the same way Japanese karate levels are ranked: by different colored belts. This is the White Belt volume, a great introduction for anyone who wants to find the perfect beginner's challenge. It's impossible to complete only one sudoku at a time, because solving them is habit-forming!","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49540622614801,"sku":"GOR008251752","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ GOOD \/ SBYB","offer_id":49992649703697,"sku":"CIN1402735952G","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50178297102609,"sku":"CIN1402735952VG","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ WELL_READ \/ SBYB","offer_id":50381159629073,"sku":"CIN1402735952A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51024663150865,"sku":"NIN9781402735950","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402735952.jpg?v=1777543777"},{"product_id":"second-degree-green-belt-sudoku-book-frank-longo-9781402737152","title":"Second-Degree Green Belt Sudoku","description":"With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game that's appearing in major newspapers all over! Taking a page from karate-another Japanese art-each title is graded by colour: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. And because each book has an amazing 300 puzzles, the fun can go on for hours.","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":49563596620049,"sku":"CIN1402737157G","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49619545194769,"sku":"GOR007258013","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51694912962833,"sku":"CIN1402737157VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":53025996439825,"sku":"NIN9781402737152","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402737157.jpg?v=1773915460"},{"product_id":"green-belt-crosswords-book-rich-norris-9781454910824","title":"Green Belt Crosswords","description":"These second-level crosswords hone solvers' brains by revealing intermediate techniquesmoderate challenges with mostly straightforward clues and familiar answers. Nothing's too taxing or tricky . . . yet.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49575228866833,"sku":"GOR013574473","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ WELL_READ \/ SBYB","offer_id":50269125181713,"sku":"CIN1454910828A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50385376739601,"sku":"CIN1454910828G","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454910828.jpg?v=1751273449"},{"product_id":"brown-belt-kenken-book-tetsuya-miyamoto-9781454904199","title":"Brown Belt KenKen","description":"Are you a KenKen expert? Then see if you have the skills to handle these high-level puzzles!","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49580743098641,"sku":"GOR007790388","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ GARDNERS","offer_id":49731262087441,"sku":"NGR9781454904199","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49856213549329,"sku":"CIN1454904194G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":50375564329233,"sku":"CIN1454904194A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":50993270718737,"sku":"NIN9781454904199","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454904194.jpg?v=1773920092"},{"product_id":"green-belt-sudoku-book-michael-rios-9781402735967","title":"Green Belt Sudoku","description":"With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game thats appearing in major newspapers all over!  Taking a page from karate--another Japanese art--each title is graded by color: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. And because each book has an amazing 300 puzzles, the fun can go on for hours.","brand":"WoB","offers":[{"title":"GB \/ WELL_READ \/ INTERNAL","offer_id":49604804509969,"sku":"GOR013053923","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49604987978001,"sku":"GOR004331140","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50116271636753,"sku":"CIN1402735960VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50124826247441,"sku":"CIN1402735960G","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ WELL_READ \/ SBYB","offer_id":50373666668817,"sku":"CIN1402735960A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51024607904017,"sku":"NIN9781402735967","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402735960.jpg?v=1773916548"},{"product_id":"third-degree-green-belt-kakuro-book-conceptis-puzzles-9781454918387","title":"Third-Degree Green Belt Kakuro","description":"We're giving you the THIRD DEGREE! Our first- and second-degree Martial Arts Kakuro books were so incredibly popular that we know people are eager for more! So here's the next level of challenge for fans of these addictive conundrums that feature little numbers throughout the grid. Solvers have to fill in the blanks with digits that add up to the little numbers. It's fun, and it stretches your mental muscles, too! Want kakuro to solve that are just a little harder than beginning puzzles--but not so difficult as to leave you frustrated? This level's just right for you.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49614280065297,"sku":"GOR010303821","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ GARDNERS","offer_id":49734863683857,"sku":"NGR9781454918387","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":49916453028113,"sku":"CIN1454918381VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50224664117521,"sku":"CIN1454918381G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51097656000785,"sku":"NIN9781454918387","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454918381.jpg?v=1770374207"},{"product_id":"third-degree-black-belt-sudoku-book-frank-longo-9781402746499","title":"Third-Degree Black Belt Sudoku","description":"Watch out--these sudoku might crush even the most stalwart of solvers!","brand":"WoB","offers":[{"title":"GB \/ GOOD \/ INTERNAL","offer_id":49640597061905,"sku":"GOR006527507","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49707288625425,"sku":"CIN1402746490G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ GARDNERS","offer_id":49732066181393,"sku":"NGR9781402746499","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50329733300497,"sku":"CIN1402746490VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":50554728022289,"sku":"GOR003663577","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ WELL_READ \/ INTERNAL","offer_id":50726902759697,"sku":"GOR010348963","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":52622840725777,"sku":"NIN9781402746499","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":53112602263825,"sku":"CIN1402746490A","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402746490.jpg?v=1770374871"},{"product_id":"brown-belt-sudoku-r-book-michael-rios-9781402735974","title":"Brown Belt Sudoku (R)","description":"With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game thats appearing in major newspapers all over!  Taking a page from karate--another Japanese art--each title is graded by color: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. And because each book has an amazing 300 puzzles, the fun can go on for hours.","brand":"WoB","offers":[{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":49657459769617,"sku":"CIN1402735979VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49766146572561,"sku":"CIN1402735979G","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ WELL_READ \/ SBYB","offer_id":50373668176145,"sku":"CIN1402735979A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51024654696721,"sku":"NIN9781402735974","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402735979.jpg?v=1773918916"},{"product_id":"second-degree-brown-belt-sudoku-book-frank-longo-9781402737169","title":"Second-Degree Brown Belt Sudoku","description":"With a separate sudoku book for every level, all puzzle lovers can play this wildly popular, incredibly addictive game that's appearing in major newspapers all over! Taking a page from karate-another Japanese art-each title is graded by colour: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. And because each book has an amazing 300 puzzles, the fun can go on for hours.","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":49688056660241,"sku":"CIN1402737165G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":49777147478289,"sku":"CIN1402737165VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":50520390074641,"sku":"GOR004376280","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":50805900476689,"sku":"GOR004376355","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":51416974000401,"sku":"CIN1402737165A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ LIKE_NEW \/ SBYB","offer_id":53645491470609,"sku":"CIN1402737165LN","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402737165.jpg?v=1770290951"},{"product_id":"white-belt-kenken-book-tetsuya-miyamoto-9781454904175","title":"White Belt KenKen","description":"Intrigued by KenKen? Novices can tie on their white belts and begin their puzzle-solving journey here. But be warned: once you begin, youll never want to stop!","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":49708431442193,"sku":"CIN1454904178G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":49748113555729,"sku":"CIN1454904178A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51027230261521,"sku":"NIN9781454904175","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51120723820817,"sku":"CIN1454904178VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":51502562050321,"sku":"GOR006347984","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454904178.jpg?v=1776334667"},{"product_id":"black-belt-kenken-book-tetsuya-miyamoto-9781454904205","title":"Black Belt KenKen","description":"Are you experienced? These are the hardest KenKen for super-solvers only!","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49731224666385,"sku":"NGR9781454904205","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":50492370780433,"sku":"GOR005975018","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ GOOD \/ SBYB","offer_id":50635139580177,"sku":"CIN1454904208G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51027186745617,"sku":"NIN9781454904205","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":52323753197841,"sku":"CIN1454904208VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":53506485584145,"sku":"GOR009797902","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454904208.jpg?v=1770373091"},{"product_id":"white-belt-kakuro-book-conceptis-puzzles-9781402739330","title":"White Belt Kakuro","description":"Kakuro are language-free number puzzles that use pure logic and require just simple arithmetic to solve. This book contains 150 kakuros. It takes cue from the belt colors in martial arts: white is for novices, green for intermediates, brown for very accomplished players, and black for those consummate experts who crave a challenge.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49731651207441,"sku":"NGR9781402739330","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49850844184849,"sku":"CIN1402739338G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50136576524561,"sku":"CIN1402739338VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":50297387647249,"sku":"GOR004123539","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":51084662833425,"sku":"GOR001868644","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":52626265080081,"sku":"NIN9781402739330","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402739338.jpg?v=1777543365"},{"product_id":"brown-belt-kakuro-book-conceptis-puzzles-9781402739354","title":"Brown Belt Kakuro","description":"Kakuro are language-free number puzzles that use pure logic and require just simple arithmetic to solve. This book contains 150 kakuros. It takes cue from the belt colors in martial arts: white is for novices, green for intermediates, brown for very accomplished players, and black for those consummate experts who crave a challenge.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49731656909073,"sku":"NGR9781402739354","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ GOOD \/ SBYB","offer_id":49853353492753,"sku":"CIN1402739354G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":50254649721105,"sku":"GOR002918802","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50571563663633,"sku":"CIN1402739354VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51025265262865,"sku":"NIN9781402739354","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":51734335488273,"sku":"GOR005239089","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402739354.jpg?v=1777542546"},{"product_id":"green-belt-kakuro-book-conceptis-puzzles-9781402739347","title":"Green Belt Kakuro","description":"Kakuro are language-free number puzzles that use logic and require just simple arithmetic to solve. This book contains 150 kakuros. It takes cue from the belt colors in martial arts: white is for novices, green for intermediates, brown for very accomplished players, and black for those consummate experts who crave a challenge.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49731665002769,"sku":"NGR9781402739347","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49748131119377,"sku":"CIN1402739346G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49907024101649,"sku":"GOR004694486","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50092732317969,"sku":"CIN1402739346VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51024516776209,"sku":"NIN9781402739347","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":51277839565073,"sku":"GOR007438002","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":51439170748689,"sku":"CIN1402739346A","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402739346.jpg?v=1772704943"},{"product_id":"green-belt-kenken-book-tetsuya-miyamoto-9781454904182","title":"Green Belt KenKen","description":"So, youve worked your way through the easiest, for-beginners-only KenKen. The next level awaits you. Do you have what it takes?","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49732700012817,"sku":"NGR9781454904182","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50130604785937,"sku":"CIN1454904186G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51119117861137,"sku":"CIN1454904186VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":52108519014673,"sku":"GOR007582236","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":52623888974097,"sku":"NIN9781454904182","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454904186.jpg?v=1773917948"},{"product_id":"second-degree-white-belt-kakuro-book-conceptis-puzzles-9781402787942","title":"Second-Degree White Belt Kakuro","description":"Kakuro is fun--but if the puzzles arent just right, newcomers can feel frustrated. This collection will ease novices into solving kakuro puzzles, helping them improve and preparing them for the next level of difficulty.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49733463867665,"sku":"NGR9781402787942","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":50372714627345,"sku":"CIN1402787944A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50655855083793,"sku":"CIN1402787944VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":52106567319825,"sku":"CIN1402787944G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":52623888351505,"sku":"NIN9781402787942","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":53642205298961,"sku":"GOR010622363","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402787944_42f078c5-c474-4767-b5c4-0e8af597a283.jpg?v=1776334736"},{"product_id":"second-degree-brown-belt-kakuro-book-conceptis-puzzles-9781402787966","title":"Second-Degree Brown Belt Kakuro","description":"Were giving you the second degree ... in brown-belt kakuro training! Go from good to great with these tough puzzles. Complete them all, and youll be ready to earn your black belt.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49733479137553,"sku":"NGR9781402787966","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":50298397819153,"sku":"GOR009661345","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50811971010833,"sku":"CIN1402787960G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":53155555246353,"sku":"CIN1402787960VG","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402787960.jpg?v=1770373962"},{"product_id":"second-degree-green-belt-kakuro-book-conceptis-puzzles-9781402787959","title":"Second-Degree Green Belt Kakuro","description":"Kakuro books have done solidly for us in the past, and logic puzzles are all the rage these days.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49733503615249,"sku":"NGR9781402787959","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50273123795217,"sku":"CIN1402787952VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51024676552977,"sku":"NIN9781402787959","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":51416907546897,"sku":"CIN1402787952G","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":52108874350865,"sku":"GOR007948062","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402787952.jpg?v=1776333964"},{"product_id":"third-degree-black-belt-kakuro-book-conceptis-puzzles-9781454918363","title":"Third-Degree Black Belt Kakuro","description":"We're giving you the THIRD DEGREE! Our first- and second-degree Martial Arts Kakuro books were so incredibly popular that we know people are eager for more! So here's the next level of challenge for fans of these addictive conundrums that feature little numbers throughout the grid. Solvers have to fill in the blanks with digits that add up to the little numbers. It's fun, and it stretches your mental muscles, too! How tough are you? These 150 kakuro are for top solvers only!","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49734818496785,"sku":"NGR9781454918363","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50284901433617,"sku":"CIN1454918365G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50376257241361,"sku":"CIN1454918365VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":50559101796625,"sku":"GOR009268892","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":50726508101905,"sku":"GOR014051031","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51027320635665,"sku":"NIN9781454918363","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454918365.jpg?v=1772791918"},{"product_id":"third-degree-white-belt-kakuro-book-conceptis-puzzles-9781454918394","title":"Third-Degree White Belt Kakuro","description":"We're giving you the THIRD DEGREE! Our first- and second-degree Martial Arts Kakuro books were so incredibly popular that we know people are eager for more! So here's the next level of challenge for fans of these addictive conundrums that feature little numbers throughout the grid. Solvers have to fill in the blanks with digits that add up to the little numbers. It's fun, and it stretches your mental muscles, too! Beginners welcome! These 150 puzzles are perfect for kakuro newbies.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49734828720401,"sku":"NGR9781454918394","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50000709615889,"sku":"CIN145491839XG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51091218891025,"sku":"NIN9781454918394","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":51430283673873,"sku":"GOR014272796","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":51448553734417,"sku":"GOR009632814","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":53158442139921,"sku":"CIN145491839XVG","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/145491839X.jpg?v=1777543528"},{"product_id":"brown-belt-sudoku-variants-book-conceptis-puzzles-9781454950660","title":"Brown Belt Sudoku Variants","description":"Get ready to fight your way to the top of the sudoku ranks! Each book in this Martial Arts sudoku series will contain 300 puzzles, with a different blend of sudoku variants depending on the difficulty level. Brown Belt Sudoku Variants will include puzzle types featured in the Green Belt at a higher level, as well as some additional variants.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49750509191441,"sku":"NGR9781454950660","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":52491521982737,"sku":"GOR014536618","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":52815506211089,"sku":"CIN1454950668G","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454950668.jpg?v=1776334470"},{"product_id":"white-belt-sudoku-variants-book-conceptis-puzzles-9781454950684","title":"White Belt Sudoku Variants","description":"Get ready to fight your way to the top of the sudoku ranks! Each book in the Martial Arts sudoku series will contain 300 puzzles, with a different blend of variants depending on the difficulty level. White Belt Sudoku Variants will include the most accessible puzzle types at their easiest level.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49750527181073,"sku":"NGR9781454950684","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51331769991441,"sku":"CIN1454950684VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":52491521917201,"sku":"GOR014536617","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":52816838525201,"sku":"CIN1454950684G","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454950684.jpg?v=1770374069"},{"product_id":"black-belt-sudoku-variants-book-conceptis-puzzles-9781454950653","title":"Black Belt Sudoku Variants","description":"Get ready to fight your way to the top of the sudoku ranks! Each book in this Martial Arts sudoku series will contain 300 puzzles, with a different blend of sudoku variants depending on the difficulty level. Black Belt Sudoku Variants will feature variants with the most fiendish twists.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49750738698513,"sku":"NGR9781454950653","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51097724387601,"sku":"NIN9781454950653","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":52491521884433,"sku":"GOR014536616","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/145495065X.jpg?v=1770372194"},{"product_id":"beyond-black-belt-sudoku-book-frank-longo-9781402780707","title":"Beyond Black Belt Sudoku","description":"Are you a sudoku warrior? Now you have an incredible opportunity to reach elite status and bask in the glory of completing some of the hardest sudoku ever constructed. For diehards only! These incredibly difficult puzzles are handcrafted for the sudoku warrior who dares to go where other solvers fear to tread. So, if you're armed with the highest-level strategies, get ready for the most satisfying fight your life. It's the most challenging sudoku book we've ever published!","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":49866457710865,"sku":"CIN1402780702G","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50971202519313,"sku":"CIN1402780702VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51025143136529,"sku":"NIN9781402780707","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":51073210319121,"sku":"CIN1402780702A","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":51205772509457,"sku":"GOR005780361","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ GARDNERS","offer_id":53031342932241,"sku":"NGR9781402780707","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402780702.jpg?v=1773914332"},{"product_id":"black-belt-word-search-puzzles-book-samuel-a-donaldson-9781454912095","title":"Black Belt Word Search Puzzles","description":"Warning: a mind-melting experience awaits you here  These Black Belt puzzles take solvers' skills to the limit with encrypted word lists--or no list at all--and grids with missing letters waiting to be filled in.","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":49887726797073,"sku":"CIN145491209XG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ LIKE_NEW \/ INTERNAL","offer_id":50620738568465,"sku":"GOR014013926","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51326267031825,"sku":"CIN145491209XVG","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/145491209X.jpg?v=1751209558"}],"url":"https:\/\/www.worldofbooks.com\/collections\/martial-arts-puzzles-ser-book-series.oembed?page=2","provider":"World of Books ","version":"1.0","type":"link"}