jigsaw sudoku wiki. In this example the starting candidate is 6 in J4. jigsaw sudoku wiki

 
 In this example the starting candidate is 6 in J4jigsaw sudoku wiki Sudoku, called Number Place in some publications, is a type of logic puzzle involving the placement of the digits 1-9 within a 9x9 grid so that each row, column, and 3x3 section of the grid contains each one exactly once

High quality Jigsaw Sudoku-inspired gifts and merchandise. Create, play, share jigsaw puzzles and compete with other users. pdf. Art Puzzle - Jigsaw Art Games. This Jigsaw Sudoku Puzzle Book is a fun way for teens or adults to sharpen their minds and test their logic. But of course you. Welcome to our addictive, relaxing, and free-to-play Tile Connect puzzle & pair matching game! Guru Game, is a trailblazing mobile game developer. . See this category for a list of Killer Sudoku techniques. Unknown squares are filled with 'candidates' - possible solutions. What makes it more interesting aside from you will be able to play a hand-cut jigsaw puzzle is that there is no provided guide picture as to what you are going to assemble!Jigsaw Sudoku is a logic puzzle with simple rules and challenging solutions. In this. Sudoku. 5x5 6x6 7x7 8x8 9x9 10x10. You can still use the same strategies and perhaps invent some new ones. Blockudoku®: Block Puzzle Game. Welcome to the Daily Jigsaw Sudoku Puzzle. For more information about this project and other logic puzzles visit my website Calcudoku. 1 Monetization; 2 Game data. - Tents never touch each other even diagonallyUse 3D chains. How to play mahjong. Alice in Wonderland Jigsaw Puzz. 5 star. 台灣數獨發展協會(Taiwan Sudoku Association,簡稱TSA)亦為世界解謎聯盟會員。香港則是由《am730》於2005年7月30日創刊時引入數獨。中国大陆是在2007年2月28日正式引入数独。北京晚报智力休闲数独俱乐部(数独联盟前身)在新闻大厦举行加入世界谜题联合会的颁证. 2. You can only remove a tile if it's open on its left or right side. Unlimited puzzles, hints & reveals. I do hope you enjoy them as much as I have in creating them. Get your order fast and stress free with free curbside pickup. Renew. Every puzzle from the easiest to the hardest requires simple 'eyeballing' to detect the easy solutions. Good game? Sudoku. [2] Getting Started. To begin solving the Sudokube, it’s helpful to first draw a map or diagram of the unfolded cube to help visualise the spatial relations of the numbers. [ Sudoku Solver ] [ Sudoku X Solver ] [ Jigsaw. Jigsaw diagonal Sudoku is also referred to Jigsaw X Sudoku. We remain a cottage industry when we could be so much better and do so much more. Samurai Sudoku. In all that time I think I received about £5 from the owner of the Sudoku Wiki site. Free sudoku printable pdfPrintable jigsaw sudoku pdf Sudoku printable easy seniors 6x6 rtrs puzzles hard searches printablesudokufreeSudoku printable hard per puzzles printabler card puzzle template board place very kids challenging choose worksheets pejuang dash. type. You can enter a new Killer puzzle using the new 'designer' - click on " Enter new Killer ". XYZ-Wing example 1 : Load Example or : From the Start. ② Each puzzle is guaranteed to have only one solution. 1 1Sudoku boards can be classified into regular and non-regular boards. Or, bookmark and check this page daily for a cool Puzzle of the Day! Tip: While solving a puzzle, click the button in the lower-right corner to go. Unfortunately the project files are gone and the app will not be updated. In order to use this solver you need to pick the correct grid shape from the list above. Each row and column must contain numbers 1 to 9 exactly once. In jigsaw sudoku, the rules are very simple, as the rules for standard sudoku still apply. Our irregular Sudoku puzzles are 9 X 9 sudoku. Pics Quotes Both Rewards. 3: SUDOKU, released March 23, 2006 in Japan, [1] later released as Sudoku Gridmaster in North America and Sudoku Master in Europe. The rules are simple. Instead of having nine 3 X 3 square areas, these 9 areas are irregular shapes. #2 in Series. • Forms: Symmetrical or asymmetrical. The answer to this Jigsaw Sudoku puzzle #363 can be viewed by clicking on the button. No ads. Contests and championships; Discord puzzles; Puzzle sources. Utilities. In order to use this solver you need to pick the correct grid shape from the list above. A grid has 9 rows, 9 columns and 9 boxes, each having 9 cells (81 total). You need to find by deduction nine different digits by row, column and area. Killer Sudoku. For better understanding, I have colored each nonet. 4. Common Killer Sudoku only has one type of calculation rule. Samurai Sudoku. com permite-te resolver puzzles gratuitamente, receber dicas, corrigir os dados, criar notas. 5 levels of difficulty for beginners and advanced players: - 6х6 Fast. Just as in a regular sudoku, the rows and columns must still contain one and only one of the digits. Go to:Play puzzles online or call the Previous page. Vol. The page "Enter an irregular Sudoku" was requested directly. 7 out of 5 stars 36Jigidi is a community that runs on curiousity, creativity and kindness, and we have guidelines we steer by. 5. One of the most enjoyable elements about it is that there are many possible grid types, and therefore. Best 3D Puzzles. Use the "Import a Windoku" button or type in a Sudoku puzzle in the small board. All rights reserved. e. The basic Sudoku rules apply. October: packs are still available Sudoku: Code: Price $ Add to Cart: Classic 9 x 9 sudoku is available in five grades. If you are searching for puzzles or how to solve logical puzzles like Sudoku then you are in the right place. The rules that you use in standard sudoku certainly apply, that there is 1 - 9 once in each row, column and in this case irregular shaped thick lined set of nine cells. Play unlimited sudoku puzzles online. Like regular Sudoku puzzles, you have to complete the grid. Maintain & track your daily streaks. A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge. ③ Answers to every puzzle are provided. How to play Killer Sudoku. However, you will have few, if any, completed cells in Killer. 1. These three cells are the last remaining cells in row A which can contain 2, 5 and 6, so those numbers must go in those cells. See the Step-by-step solver for tips and strategies. The formula for regular Sudoku boards is: Let m denote the width and height of a Sudoku sub-board, where m ≥ 2. SudokuWiki. b) A sudoku is valid if it satisfies all the following properties:Chaining strategies now take a new leap with Alternating Inference Chains. The numbers are placed in 9 squares, 3x3 each, thus, in each row, in each column and in each small square there are 9 cells. Use the space bar or delete to empty a cell. Click on each cell with your mouse and enter a number from 1 to 9 using your keyboard. Includes Crossword, Quick Cross, & Sudoku. Compatible with all browsers, tablets and phones including iPhone, iPad and Android. Teachers used Spilsbury's puzzles to teach geography. " [ 5] It was popularized in 1986 by the Japanese puzzle company Nikoli, under the name Sudoku, meaning single number. Each sub-region must contain the numbers 1-9 once, and only once. Each outlined region is marked by thick borders. Here are some additional resources: Overview of Backtracking from Wikipedia; Video Explanation of Backtracking by V. Guaranteed a single solution - and a logical path to solve. $13. Jigsaw Sudokus (also known as Irregular, Nonomino, or Geometric Sudoku) are very similar to regular Sudoku puzzles, but instead of 3x3 blocks, they are divided into irregular jigsaw-like shapes. Paperback. cool have seven sizes of 4x4,5x5,6x6,7x7,8x8,9x9 with ten. We would like to show you a description here but the site won’t allow us. A jigsaw puzzle (with context, sometimes just jigsaw or just puzzle) is a tiling puzzle that requires the assembly of often irregularly shaped interlocking and mosaicked pieces, each of which typically has a portion of a picture. org data below. Rules of the game Our irregular Sudoku puzzles are 9 X 9 sudoku. Edit Edit source View history Talk (0) A grid with irregular regions is used Categories Categories. Or fastest delivery Fri, Jul 21 . Samurai sudoku puzzles consist of five overlapping sudoku grids. Jigsaw Sudoku (also called Squiggly Sudoku, Odd Sudoku or JigSaw Doku) is just like a regular Sudoku puzzle, except that instead of the lines being perfect, they are different. Jigsaw Puzzles - puzzle games. It is the complete Sudoku package, including hints, guides, easy printing and many puzzle generation options. Additionally, each digit appears exactly once in each of the two main diagonals and the grey squares in the grid must contain odd digits. The objective is: to complete a 9×9 grid by filling in missing digits from 1 to 9, without using the numbers more than once in each row, column and grid. The goal of Sudoku is to fill a 9×9 grid with numbers so that each row, column and 3×3 section contain all of the digits between 1 and 9. Thousands of free interactive sudoku and logic puzzles. If a tile is locked from both left and right sides you can't remove it. Freedoku - Free online sudoku. This is not a difficult. Swordfish Strategy. However, these puzzles are missing the 3×3 blocks found in regular Sudoku. This page also contains help and preferences. Intermediate Jigsaw Sudoku, Volume 1. Sudoku is easily the most played and most analyzed puzzle in the world, so coming up with the hardest one is no mean feat. It should be easier to spot in a game as we can concentrate on just one number at a time. Basierend auf dem normalen Jigsaw Sudoku bzw. This surprised me quite a bit. Sudoku is a number puzzle where you have to fill a grid with numbers 1 through 9, with each number appearing only once in a row, column, or box. 5 star. Each column must contain. Jigsaw Sudoku features:In other words, guessing is never required. The Daily Sudoku. Sudoku, Nonograms, Hashi, Network, Nurikabe, Minesweeper and more!Jigsaw Sudoku. by Andrew Stuart. Ravensburger 3D Jigsaw Puzzle Eiffel Tower. Publication date. Step 2: Draw a diagram of the ‘unfolded cube’. Saturday : Tough. 9% of puzzles there are many weird and wonderful examples that defeat it. Use 3D chains. Nếu ta lần theo hàng và cột của từng ô trống và thấy xuất hiện số 5 ở nơi khác, người chơi có thể loại trừ các ô mà không thể. 5 star. This tough puzzle has two Hidden Triples: the first, marked in red, is in row A. Рішення головоломки не вимагає математичних розрахунків, але потребує терпіння і. The basic Sudoku rules apply. 数独, вимова файл, sūdoku; англ. Jigsaw diagonal Sudoku puzzles on Sudoku. This strategy is looking at single numbers in rows and columns. Only then type the numbers into the small grid, use the Import button or pick an example from the example list. The standard sudoku rules apply to each 9 x 9 grid. Hi, For those asking about the iOS app. Or, bookmark and check this page daily for a cool Puzzle of the Day! Tip: While solving a puzzle, click the button in the lower-right corner to go. Jigsaw diagonal Sudoku puzzles on Sudoku. XYZ-Wing example 1 : Load Example or : From the Start. $24. by Dart Veider. To enter notes simply. No ads. Effective use of feedback and data to modify product with eye for retention and. This Jigsaw Sudoku can be completed directly on the web page - just enter numbers in the cells. However, some variants are mathematical (see below). In a traditional sudoku there are 3 dimensions (a cell is part of a horizontal cellgroup, a vertical cellgroup and a 3x3 cellgroup). 'digit-single'; originally called Number Place) is a logic-based, combinatorial number-placement puzzle. . Additional stat-tracking. With X-Wings we looked at a rectangle formed by four numbers at the corners. 49 KB. Choose hard sudoku to improve your skills and try expert sudoku puzzle with numbers for really challenges. A Sudoku whose regions are not (necessarily) square or rectangular is known as a Jigsaw Sudoku. Maintain & track your daily streaks. Irregular Sudoku Jigsaw Sudoku Chaos Sudoku Nonomino Sudoku Toroidal Sudoku. the puzzle) is a partially completed grid. The Daily Jigsaw starts at a moderate level on Monday and the difficulty level will increase till Sunday, when the real challenges are waiting for you. Unknown squares are filled with 'candidates' - possible solutions. This puzzle is one of the more common and more fun of the various sudoku variants. Enter numbers in the. 9x9 16x16. This Jigsaw Sudoku book is packed with the following features: ① 1000 Medium Jigsaw Sudoku Puzzles. The types of puzzles can test problem-solving skills, including logic, pattern recognition, sequence solving, spatial recognition, and word completion. The goal of the game is to fill every square on the grid with a. Sudoku 6x6. 19. October: packs are still available Sudoku: Code: Price $ Add to Cart: Classic 9 x 9 sudoku is available in five grades. Str8ts is available as a print puzzle for all newspapers, magazines and books at a reasonable price. ☆👍Jigsaw Sudoku ☆👍 💪 This is a new way of playing Sudoku. Our daily medium difficulty web sudoku puzzles are suitable for people, who possess basic knowledge of game and can quickly deal with easy level Sudoku. Table Of Contents. ④ 6 puzzles per page (8. by Andrew Stuart. Scientists have discovered that when we work on a jigsaw puzzle, we utilize both sides of the brain, improving memory, cognitive function and problem. Our Sudoku game also saves your uncompleted puzzles so you can come back and finish them whenever you want! Work your way up through four levels of difficulty: easy, normal, hard and expert Sudoku. This paper seeks to define a smaller set of more generalized strategies, which make the relationship. T-shirts, posters, stickers, home decor, and more, designed and sold by independent artists around the world. O objetivo do Sudoku é preencher uma grelha de 9x9 com números para que cada fila, coluna e secção 3x3 contenha todos os dígitos entre 1 e 9. We also have a great no-cost solution for any community newsletter, magazine, school or collage newspaper: Print ready Str8ts and/or Sudoku files in PDF format - simply. Pixel Art - Color by Number. 2048. Smaller grids are of course generally more easy to solve. To associate your repository with the jigsaw-sudoku topic, visit your repo's landing page and select "manage topics. Subscribe for 99¢. Sign in to add files to this folder. Each row, column, and irregular. Then the width and height of a regular Sudoku board is m2. This Jigsaw Sudoku can be completed directly on the web page - just enter numbers in the cells. 132 pages. 2) Moved the “save to favourites” up to stop it being hidden by keyboard. Sendo um jogo de lógica, o Sudoku é também um excelente jogo para o cérebro. As part of the Embracer Group, Easybrain continues to develop strong mobile game titles and strive towards new achievements. Start with your first free puzzle today or subscribe for unlimited access to puzzles, hints and reveals!Paperback. The first is a '2-Wing'. Monday, Wednesday : Gentle. Pick from 5 different difficulty levels. Only then type the numbers into the small grid, use the Import button or pick an example from the example list. Given a 9×9 grid, with some initial values filled. Within each volume, the puzzles are also ordered by ascending difficulty. Instead, groups of cells form blocks or 'cages' - and the clue is the sum of the solutions to those squares. Jigsaw Sudoku #3 3 9 1 8 3 9 8 6 4 9 2 4 7 5 4 3 9 3 2 6 4 9 Challenging Jigsaw Sudoku by Krazydad, Volume 1, Book 29 For more puzzles, visit krazydad. The sudoku board is broken down into. Smaller grids are of course generally more easy to solve. numbers 1 to 9. Vol. Jigsaw Sudoku is a fun variant on the sudoku theme, that provides a fun change to the standard sudoku puzzle. 4 out of 5 stars 34. Still the best and most comprehensive book on logical strategies for Sudoku, Killer Sudoku and Jigsaw Sudoku. Slitherlink. . Brought to you by game experts from a top developer, it is a simple yet challenging and addictive free block puzzle you won’t be able to put down. 2. Unfolded cube. Advertisement. To achieve one guardian there must be four perfect pairs and one Imperfect. Each puzzle consists of a 9x9 grid containing numbers in various squares. e. All orders are custom made and most ship worldwide within 24 hours. Tents is a logic puzzle with simple rules and challenging solutions. picclick. In Figure 3 BC can see AB because they share the same box. We discount heavily for multiple puzzles per issue and for bulk orders. The first jigsaw puzzle was a map of the world. Put your Sudoku skills to the test with Jigsaw Sudoku! This variant requires you to fill every row, column, and irregularly shaped region with numbers 1-9. Puzzle video games make up a broad genre of video games that emphasize puzzle solving. What is 9 x 9 sudoku game? 9 x 9 Sudoku is a logic-based puzzle game that involves filling a 9 x 9 grid with digits from 1 to 9. In particular, an N×N square where N is prime can only be tiled with irregular N-ominoes. There are 20 Jigsaw shapes as used on and four interesting examples for each shape, 80 examples in total. Each sub-region must contain the numbers 1-9 once, and only once. May 5, 2020. We would like to show you a description here but the site won’t allow us. Albums on the left have hundreds of free jigsaw puzzles already - feel free to explore and play it all. How to play Jigsaw Sudoku: Fill all rows and columns with numbers 1 to 9 exactly like in the classic free sudoku puzzle game. Go to:Play puzzles online or call the Previous page. How to play Killer Sudoku. The sizes of regular sub-XV Jigsaw Sudoku is an easy but fun sudoku variation where the neighbour cells that add up to 5 have Roman five (v) in between. Attached below is a unsolved Jigsaw sudoku. But of course you can print it as well. Die Puzzle auf dieser Seite werden täglich geupdatet. Sudoku, Nonograms, Hashi, Network, Nurikabe, Minesweeper and more!Jigsaw Sudoku. Your objective is to fill the rest of the fields without breaking the constraints that each. If you like very tough puzzles, these are for you. This free sudoku website features hundreds of Easy Sudoku puzzles, Medium Sudoku puzzles, Hard Sudoku puzzles, and Expert Sudoku puzzles! 24/7 Sudoku is sure to keep you playing this great sudoku game all day, every day! Sudoku is a brain challenging number game, played on a 9x9 sudoku board. Create, solve, share and compete at Jigidi. Blockudoku®: Block Puzzle Game. Only then type the numbers into the small grid, use the Import button or pick an example from the example list. A grid has 9 rows, 9 columns and 9 boxes, each having 9 cells (81 total). 7. We keep it simple and exciting, crafting addictive games that promise long-lasting fun and stimulation for our players. Cheatwell World’s Smallest Jigsaw Puzzle London. 🔢 Get an amazing game experience: More than 12000 classic well-formed sudoku games with numbers. Sudoku is played on a grid of 9 x 9 spaces. There are 20 Jigsaw shapes as used on and four interesting examples for each shape, 80 examples in total. Available also from the solver. Download this classic number game and play free sudoku for android. A Jigsaw example: . The #1 puzzle was chosen by default. Sudoku. This Sudoku is having a very good Logical solution path. However, as you can see, instead of the usual regularly shaped subareas, known as nonets, the boxes are irregularly shaped. Match blocks to remove them by completing lines and cubes. There are two ways one can group all the strategies for Sudoku: by difficulty and by family. The rules of Jigsaw Sudoku are simple: 1. Jigsaw Sudoku puzzles on Sudoku. 71 Buy It Now 21d 3h. All content © The Daily Sudoku Ltd 2005-2018. When you have found a square where you can enter a number, click/touch that square. Dissected pictures followed, covering such subjects as history, alphabets, botany, and zoology. [2]Getting Started. Dates in blue are puzzles you've started. Microsoft Jigsaw: 2014: Microsoft Sudoku: 2014: Microsoft Treasure Hunt: 2014: Contents. Media & Internet · Texas, United States · <25 Employees. These rules are very similar to the normal Sudoku rules, but where in a normal Sudoku puzzle each region is a 3x3 square, they can be any shape in a Jigsaw Sudoku puzzle. Strategies for Sudoku, Sudoku X, Killer Sudoku and Jigsaw Sudoku - and the home of logical puzzle maker Andrew Stuart. 1. 4) Increased the font size of the strategy results, moved buttons down, results space vertically flexible and uses remaining space. I do hope you enjoy them as much as I have in creating them. However, jigsaw sudoku online is generally trickier to solve than standard sudoku. Sudoku is a logic based number placement puzzle. Exocet is a pattern that can often occur in very hard puzzles where the candidate density is very high. Mixed Jigsaw Sudoku 2023 archive. To enter notes simply type more than one number or prefix with '0' to note one number. Show the Solution to the puzzle. Here are hundreds of free Star Battle puzzles suitable for printing. Irregular Sudoku Jigsaw Sudoku Chaos Sudoku Nonomino Sudoku Toroidal Sudoku. Khối trên bên phải thiếu số 5. The only difference between Sudoku and Jigsawpuzzles is that the 3x3 squares are no longersquares; instead they are irregularly shaped, like pieces of a jigsaw puzzle. Usually they are 6x6, 8x8 or 9x9, although sometimes they are 12x12. Kropki Sudoku puzzles add black ( o) and white ( o) circles to a regular Sudoku puzzle. Y-Wing Figure 3 If our A, B and C are aligned more closely they can 'see' a great deal more cells than just the corner of the rectangle they make. Jigsaw Sudoku: 200 Medium Jigsaw Sudoku Puzzles Volume 7. Every row, column, and 3 x 3 box should contain one of each digit. Jigsaw Sudoku Puzzle Book is a collection of 500 Jigsaw sudoku puzzles. Sudoku For Kids. Each number can only be used once in a given row or column. Futoshiki. Keys and locks. The process of solving Sudoku is filling numbers from 1-9 into 9x9 grids. Including 156 Puzzles of varying difficulty to keep you entertained for hours. 2795,2798,2800,12579,12588,19891,19911,23171. Jigsaw Sudoku. It is the complete Sudoku package, including hints, guides, easy printing and many puzzle generation options. If you are searching for puzzles or how to solve logical puzzles like Sudoku then you are in the right place. [1] Sudoku puzzles are solved by logic and no math is required. SudokuWiki. Any cells that are reduced to one possible candidate are solved. The Colour Sudoku Solver. Daily games and puzzles to sharpen your skills. Compatible with all browsers, tablets and phones including iPhone, iPad and Android. 5 star. In your PDF download you will find 25 easy, 25 medium, 25 hard, and 25 expert jigsaw Sudoku. The Logic of Sudoku. Christian Demarco is the author of over 400 puzzle books, ranging from Sudoku and its variants such as Killer Sudoku, Sudoku-X, Samurai Sudoku, Jigsaw Sudoku and Jigsaw Sudoku-X to Word Searches and kid’s educational books, including; Sudoku for Kids, Word Searches for Kids and Letter Tracing Books. Person solving a jigsaw puzzle. 5x5 Easy Jigsaw Sudoku. Fig 1. To enter notes simply. Star Battle (published in The New York Times as "Two Not Touch") first appeared at the 2003 World Puzzle Championship in the Netherlands, the creation of prolific puzzle person Hns Eendebak. October: packs are still available Sudoku: Code: Price $ Add to Cart: Classic 9 x 9 sudoku is available in five grades. 4. About this game. We have a large collection of free printable puzzles. How to play: Use your arrow keys to move the tiles. This divides the grid into 2 parts, say left part and right part. Numbers in each column and each row (3x3 grids in rough-line boxes) cannot be repetitive. O puzzle de Sudoku mais difícil é um jogo para jogadores de Sudoku experientes cuja dificuldade é muito elevada. In this book there are 1000 of these puzzles in 5 levels of difficulty. Play Free Sudoku Now! Sudoku is one of the most popular puzzle games of all time. You can still use the same strategies and perhaps invent some new ones. This is my first Jigsaw Sudoku which I created in 9x9 size. These extend X-Cycle into a new dimension - where X-Cycles stuck to a single number, AICs use any candidate number. Hyper Sudoku NRC Sudoku Windoku. e. A Sudoku (i. All pairs of touching squares which contain consecutive values (such as 2 & 3 or 6 & 7) are marked with a white circle: o. I wrote the app. Oct 4, 2019. Numbers on each diagonal line cannot be repetitive. We have two Almost Locked Sets {A3,E3,F3} and {C5,C6,C8} and they both have 7 as a common number between them. -----. Jigsaw Sudoku (also called Squiggly Sudoku, Odd Sudoku or Jig Saw Doku) is just like a regular Sudoku puzzle, except that instead of the lines being perfect, they are different. Click on Take Step to step through the solution. For small values of N the number of ways to tile the square (excluding symmetries) has been computed (sequence A172477 in the OEIS). Jigsaw. Innies and outies. 'digit-single'; originally called Number Place) is a logic-based, combinatorial number-placement puzzle. The Daily Sudoku. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that. Jigidi is a community that runs on curiousity, creativity and kindness, and we have guidelines we steer by. This is a seriously difficult puzzle but Simon demonstrate. Paperback $7. Games in the DS Puzzle Series are: Vol. Enter numbers in the squares so that each row, column and box contains all the numbers 1 to 9. Cage coloring Double-tap selects cage Mark with dots Auto-clear marks Auto-set marks Auto-check answers Off On Auto Dark Mode. Jigsaw Sudoku Settings. Printable Sudoku Puzzles 4 Per Page - Printable Crossword Puzzles. Any cells that are reduced to one possible candidate are solved. The overlap is greater with less cells to line up. The goal of Sudoku is to fill the cells with numbers from 1 to 9. Rules of 9x9 Irregular Sudoku. There are 20 Jigsaw shapes as used on and four interesting examples for each shape, 80 examples in total.