Game features: - Endless Sudoku games in 4 different difficulty settings (Easy, Medium, Hard & Expert). Word Round Up A challenging blend of crossword and word find. Printable Sudokus The best way of easily enjoying Sudoku wherever you are. Sudoku Expert: 400 expert sudoku puzzles, sudoku very hard level for difficult sudokupuzzle enthusiasts (Sudoku evil. We have the world exclusive: the first truly interactive Killer Sudoku solver and generator. Sudoku Fact. Expiry Date. When learning sudoku, "easy" in the puzzle description is definitely a welcome word. Only use the answer keys as a last resort when trying to solve the puzzles. Mark explains how to solve a very hard Sudoku from the Sunday Times. We regularly add new online games and create new Printable Word Search and Printable Sudoku puzzles for your pleasure. Sudoku puzzles are often divided into categories such as very easy, easy, medium, hard and very hard. Sudoku History. Also provides daily Sudoku, blank grid and touch screen friendly versions. In this article, I use two of my hand crafted very difficult puzzles that have a known XY-Wing pattern. Strengthen Your Logic With These Free Printable Sudoku Puzzles For dedicated Sudoku solvers, there are hundreds of free challenging Sudoku puzzles to print for free, from beginner to highest level of difficulty. As 6 cells won't fit into a square, the Sudokus on this page were created with two different non-square patterns for the inner hemmed areas. After finding levels 1–4 much too easy I have focused on level 5, which is the hardest level within the. Press alt + / to open this menu. 6x6 sudoku puzzles. The rules to play Sudoku are quite simple. 153 153 35 94% of 87 275 f. Sudoku : Free Sudoku games for you. Sudoku puzzles are often divided into categories such as very easy, easy, medium, hard and very hard. Just click & print. Just as in a regular sudoku, the rows and columns must still contain one and only one of the digits. Sudoku 4,469 hard. " • "Great app - love it! Well done! Love the start up sounds/music!". "I often lose myself in the Sudoku-like challenges of making a book work. Learn about diabolical sudoku and Ariadne’s Thread. Every Sudoku has a unique solution and is solvable without guessing. Easy Sudoku for Fri 1/Nov/2019. The assistant can be started with a saved Sudoku cookie, however, you have to have a Sudoku saved for the assistant to load. It is now quickly spreading worldwide. You know that a sudoko is correct by adding up the numbers on the grid and getting a total of 45 in every line in every direction. Complete the grid so every row, column and 3x3 box contains every digit from 1 to 9. Sudoku Syndication. A new hard sudoku every minute!. According to quantitative tests, Sudoku Puzzler has a wider difficulty range than most nationally syndicated Sudoku puzzles. This page covers techniques that will solve most puzzles up to (and including) 'fiendish' or 'very hard' rating. Easy Medium Hard Evil. Sudoku 4,473 hard. Techniques and Free Sudoku Books. Learn more about sudoku at Wikipedia Sudoku. PrintSudoku. For children and beginners we have smaller sizes like 4x4 or 6x6, but even skilled experts will be challenged by our hard and oversized ones. Learn solving techniques with our smart solver. Play extremely hard Sudoku puzzles in our expert area. Want to improve? Take a look at our tutorial pages. Hard Sudoku by www. According to Guinness World Records, the fastest time to complete a "Very Easy" difficulty Sudoku puzzle was 1 minute 23. Sudoku #3791 Very Hard Sudoku #3787 Very Hard Sudoku #3781 Very Hard Sudoku #3777 Very Hard Sudoku #3775. Very Hard Sudoku of the Day. Visit the Count On site for a brand new Sudoku every day!. Up & Down Words Use crossword-style clues to fill in two-word phrases. One of the more complex Sudoku strategies is the 'X-Wing' and its cousin the 'Swordfish'. 106815811 puzzles downloaded. In fact, the numbers could be replaced with letters or symbols and the results would be the same; it's all about recognizing the. Look no farther. Warning! This sudoku puzzle is only suitable for absolute sudoku experts. You know that a sudoko is correct by adding up the numbers on the grid and getting a total of 45 in every line in every direction. You want to try sudoku, but you don't know where to begin. Very hard Sudoku by Conceptis are now made even harder through the introduction of particularly difficult solving methods. Enter numbers into the blank spaces so that each row, column and 3x3 box contains the numbers 1 to 9 without repeats. Like many people, I assumed that sudoku was Japanese, only to discover it was printed in a US magazine well before it reached Japan. In other words, the other guys' Hard puzzles are about equivalent to their Medium puzzles. Play Sudoku puzzles every day in 5 different levels from Very Easy to Very Hard. Sudoku printables page prints six puzzles per page from a large selection of hand-designed layouts and difficulty levels. This means they are for the seasoned professional with a lot of experience playing Sudoku. Each row, column, and 3 x 3 box must contain only one of each of the 9 digits. Sudoku is a great activity to sharpen the mind. Making the best Sudoku game on Steam. Here are thousands of free Sudoku puzzles to print. Free 2-day shipping on qualified orders over $35. What those others do not know is that finding the correct answers to Sudoku puzzles can be very easy if you use certain strategies. Total 3600+ brain Sudoku puzzles. Hard sudoku puzzles, 4 puzzles per page. com cannot be distributed through other sites or media. The puzzles are standard sudoku puzzles with a 9 by 9 grid divided into 9 smaller 3 by 3 boxes. This book includes these awesome features: • How to play Sudoku • 300 Very Hard Level Sudoku Puzzles • There is one and only solution for every puzzles (don’t waste your time playing. Strengthen Your Logic With These Free Printable Sudoku Puzzles For dedicated Sudoku solvers, there are hundreds of free challenging Sudoku puzzles to print for free, from beginner to highest level of difficulty. Very Hard Mega Sudoku is a variant of sudoku with a size of 16x16 boxes. Very difficult sudoku puzzles to print or play online. Learn more about scams, and how to avoid them. Choose your level and print your sudoku, you can create you own sudoku book up to 12 pages. There are 5 difficulty levels, sudoku for kids,easy,hard,expert and extreme 6x6 sudoku puzzles. Navigate the grid with the arrow keys or your mouse; clear. Print 4 or 6 hard sudoku per page as a PDF or HTML (depending on the calibration of your printer). 1 7 3 4 6. If you would like to have superb quality Sudoku, Super Sudoku, Samurai Sudoku or Killer Sudoku puzzles in your newspaper, magazine or book, look no further. The rules to play Sudoku are quite simple. If you would like to have superb quality Sudoku, Super Sudoku, Samurai Sudoku or Killer Sudoku puzzles in your newspaper, magazine or book, look no further. Evil sudoku is only for experienced sudoku solvers. Before we cover how to solve Sudoku puzzles, let's take a moment to review a few aspects of Sudoku including the rules, terminology, and game variations. Print your screen and the Sudoku puzzle by clicking here. Each document has 8 diagonal sudoku puzzles, and the end of each document is the answer to the diagonal sudoku puzzles. Show solutions. 6 5 8 5 4. Pic-a-Pix Fill-a-Pix Hashi CalcuDoku. 657 657 109 97% of 578 3,232 pineappleclock 2 Issues Reported. 013 seconds). Check out our printable sudoku puzzles for kids. Card Number We do not keep any of your sensitive credit card information on file with us unless you ask us to after this purchase is complete. Play more than 100,000 sudoku puzzles free of charge in 5 levels of difficulty - online or for printing out. Every Sudoku has a unique solution that can be reached logically. There is no reason to limit sudokus to numbers - just about anything can be used in the grids, including letters and colors. Sudoku is a logic puzzle with simple rules and challenging solutions. 100 different Sudoku puzzles in five difficulty degrees: from very easy to very hard. Cells each take a number between 1 and 9. Hard Easter Sudoku is a hard boiled egg just waiting to be cracked! This hard sudoku game will challenge even the most seasoned sudoku players. daily-sudoku. Play extremely hard Sudoku puzzles in our expert area. Helps you to improve your solving skills and practice solving strategies. Games: QUITE HARD VERY HARD. Play hard online sudoku on the web. All puzzles ©2005-2019 KrazyDad. If you can easily solve these puzzles, try to improve on the time you need to solve Sudoku. The term ‘sudoku’ was created in Japan in the 1980s, but the number puzzles are much older than that! Similar number grid puzzles first appeared in newspapers in France in the late 19th century, but disappeared shortly after World War I. There are many different sizes and variants of the classic sudoku puzzle, many of which are represented in this website. In most cases, the technique might seem like much work for very little pay, but some puzzles can only be solved with it. Specific BrainBashers Sudoku. In November 2006, The Times introduced a new extreme level of Sudoku giving players a more difficult level of logic: Super Fiendish. Difficulty. Advanced guide to solving most hard Sudoku puzzles. Solves any valid sudoku puzzle. These printable sudoku puzzles are very easy to solve using only basic strategies, making them great sudokus for kids. Menu > Home > 1001 Easy Samurai Sudokus. Each difficulty contains several puzzle packs and each pack contains 30 puzzles now. The world's first live TV Sudoku show, Sudoku Live, was a puzzle contest first broadcast on July 1, 2005, on Sky One. Warning! This sudoku puzzle is only suitable for absolute sudoku experts. Very Hard sudoku ! Jump to. To solve a hard Sudoku, it may take more than an hour. American, cryptic and quick puzzles, crossword software, references and books, other related sites. The World's Hardest Killer Sudoku. 50 Printable Sudoku Puzzles. Unolingo A challenging blend of crossword and sudoku that tests logic and deductive reasoning. Very easy sudoku puzzles for kids, 4 puzzles per page. uk - it's a web page that creates puzzles, lets you solve them on screen (or print them out) and will even show you the answer!. Find out if you correctly solved the puzzle after pressing the the button "Check". Naked Pairs. The game of sudoku originated in the eighteenth century. Print sudoku for free. ne might expect a game of logic to appeal to very few people—mathematicians, maybe, computer geeks, compulsive gamblers. We hope you find our puzzles challenging yet appropriately solvable, and that the site appearance is beautifully simple. Sudoku for web or blog and also to print. Very Hard Sudoku of the Day. Print Samurai Sudoku. As 6 cells won't fit into a square, the Sudokus on this page were created with two different non-square patterns for the inner hemmed areas. Also, looking at all the games that have the option to create a sudoku puzzle via difficulty (e. EASY » | MEDIUM | HARD » How to Play: - Fill the grid with numbers so that every row, every column and every 3-by-3 box contains the digits 1 to 9, without repeating. Games updated every day! Be scam savvy. Also suitable for kids and Sudoku beginners!. The rules are easy to understand but the puzzles can be quite challenging. All puzzles ©2005-2019 KrazyDad. Cells each take a number between 1 and 9. The directory on MacOS X is ~/Library/Sudoku. Maximum points per days is 128. uk - it's a web page that creates puzzles, lets you solve them on screen (or print them out) and will even show you the answer!. Free daily sudoku 's for play online or for printing or download in pdf. Each puzzle has a unique solution and can be solved with pure logic, no guessing required. Swordfish is a more complicated version of X-Wing. Read Sudoku: 400+ Sudoku Puzzles (Easy, Medium, Hard, Very Hard) (Sudoku Puzzle Book) (Volume 3) book reviews & author details and more at Amazon. , >, <, or =), the cages will obey those relations. sudokupuzzle. Hard Easter Sudoku is a hard boiled egg just waiting to be cracked! This hard sudoku game will challenge even the most seasoned sudoku players. Thank you!. Öka Nord med 7 och ost med 3 för att hitta den nya placeringen. Play hard sudoku online for free. Evil sudoku is only for experienced sudoku solvers. Read more about the history and mathematics behind sudoku in the Wikipedia sudoku article. Complete the grid so every row, column and 3x3 box contains every digit from 1 to 9. Play extremely hard Sudoku puzzles in our expert area. From a large number of highest rated puzzles at Calcudoku. Play the ever entertaining game of Sudoku online on TheSudoku. This is a book of very difficult Sudoku puzzles. It was presented by Carol Vorderman. And a free app with no less than 500 Sixys! Publishers and Newspapers worldwide: You can publish Sixy Sudoku as well!. AnySudokuSolver is an Online automatic Sudoku Solver. 12 Hard Sudoku Puzzles – Book 11 12 Hard Sudoku Puzzles – Book 12 12 Hard Sudoku Puzzles – Book 13 12 Hard Sudoku Puzzles – Book 14 12 Hard Sudoku Puzzles – Book 15. Real Sudoku offers countless hours of Sudoku puzzle games and even teaches you how to play! Download this free sudoku puzzle and start playing now!. Each block is divided into its own matrix of nine cells. The game acquired its present form, however, only in the 70s of the 20th century, when American Howard Garns revised and published it in a special printed edition. Advanced guide to solving most hard Sudoku puzzles. Very Hard sudoku ! Jump to. One of the things I that drove me crazy about Sudoku is how difficult it is to return to a puzzle if you get interupted. Sudoku Puzzles: Hard The modern version of Sudoku was invented in 1979 by Howard Garns in USA (where it was called `Number Place'). Complete the puzzle to win. Very Hard Sudoku Puzzles Volume 4 | This very hard sudoku puzzle book has been created for fun for all ages and can be played by children, adults and senior citizens alike - suitable for all sudoku puzzle lovers Perfect for stimulating the mind and improving reasoning skills, this book contains 200 very hard difficulty level sudoku puzzles with solutions for each of the puzzles. Each booklet of printable Sudoku contains eight puzzles, instructions, hints and answers. (Kakuro and Hitori puzzles). These sudoku for kids have been specially designed for beginning puzzle solvers. If you like these puzzles, check out my other puzzles. Sudoku puzzles are often divided into categories such as very easy, easy, medium, hard and very hard. Home Print This Puzzle Sudoku Weekly - 16x16 hard Puzzle for Week of 10/28/2019 : Home - How. That is they reside in the same row, box or column. Read about surprising, fun facts about Sudoku you did not knew about. Most popular community and official content for the past week. While initially, it was hard to keep up with both, but gradually discovered some areas where both of them overlap. Play extremely hard Sudoku puzzles in our expert area. The more hints, the easier Sudoku is. Notes: The title, introduction and advertisement will not be printed out. Each grid has a number hard to find the solution online and save paper in the printer. 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. Web Sudoku also supplies Sudoku puzzles for newspapers, magazines, Sudoku books and websites. American, cryptic and quick puzzles, crossword software, references and books, other related sites. Angus Johnson's Simple Sudoku web site has a very fine page of Su Doku tips, starting with the most basic element: find the singletons, and progressing to complicated and bizarrely named rules of Su Doku logic like the "Swordfish". , >, <, or =), the cages will obey those relations. It became popular in the early 00's and since then is still a good game for all ages and skills. The goal is to fill in all the empty cells on the board with the correct numbers. Help Read the help page on Sudoku puzzles for a more detailed explanation. Just enter the digits in Sudoku board and get the solution instantly. Difficulty is determined by removing numbers from a completed puzzle, the more you remove, the higher difficulty given to the puzzle. The assistant can be started with a saved Sudoku cookie, however, you have to have a Sudoku saved for the assistant to load. (Kakuro and Hitori puzzles). Sudoku XY-Wing Pattern. Every Sudoku has a unique solution that can be reached logically. Jigsaw sudoku puzzles make a nice twist on the traditional format. These hard sudoku puzzles have far fewer clues than the easy or medium difficulty puzzles on the preceding pages. The rules for solving a Sudoku are simple: each row, column and region must contain the numerals from 1. It was presented by Carol Vorderman. Find many great new & used options and get the best deals for SUDOKU HARD AND SUDOKU VERY HARD PUZZLES VOLUME 2: 400 SUDOKU By A. you can have. Enter numbers into the blank spaces so that each row, column and 3x3 box contains the numbers 1 to 9 without repeats. This grid is subdivided into nine 3 x 3 boxes. However, as you can see, instead of the usual regularly shaped subareas, known as nonets, the boxes are irregularly shaped. Just enter the digits in Sudoku board and get the solution instantly. It is now quickly spreading worldwide. Here you can play online puzzles, ranging from very easy to very hard, find Printable Sudoku Boards and a powerful Sudoku Solver. Hard Sudoku Solver. com is compatible with all browsers, tablets and mobiles. As always, your Sudoku free download will give you access to countless features. Ramberget Sudoku Very Hard OBS! Koordinaterna för denna cache är justerade 2014-08-01. SuDoku Archive for October 2012. Sudoku is a logic puzzle that involves plugging numbers into blocks in a grid system in order to fill every empty spot without repeating numbers. com Play free online Sudoku puzzles (very hard) with pencil mark and coloring options. One of the most challenging and mind reeling puzzles of the 20th century is Sudoku, a numeric crossword that has taken the gaming world by storm. Solves any valid sudoku puzzle. Sudoku Weeklyz - Your Online Source For Free Weekly Sudoku Puzzles. Be prepared to spend time on these crazily tough puzzles. With our Daily Sudoku game you can come back each day to play a fresh new puzzle and have lots of fun. Select puzzle All puzzles Select a number from 1 to 34183: Optimal Sudoku Select a number from 1 to : These pages are made by Vegard Hanssen using the stylesheet Tigris and PHP (time: 0. Sudoku, or Su-doku, is a Japanese fun puzzle game. Fill the grid with your keyboard so that every row, column and 3×3 box contains the digits 1 to 9, without repeating. com provides free sudokus. Play free online Sudoku puzzles (very hard) with pencil mark and coloring options. Solving a Sudoku: Diabolical and Beyond - The diabolical sudoku rating comes from a puzzle-maker who has made some puzzles unsolvable using logic alone. Web Sudoku also supplies Sudoku puzzles for newspapers, magazines, Sudoku books and websites. According to quantitative tests, Sudoku Puzzler has a wider difficulty range than most nationally syndicated Sudoku puzzles. Sudoku for Kids. Sudoku is a logic based number placement puzzle. Holmes presents a collection of classic Sudoku puzzles that charge and keep the mind in top shape. Solve the puzzle by adding numbers into the empty squares that would allow each number to appear once in every row, column and 3x3 square. These sudoku for kids have been specially designed for beginning puzzle solvers. Also you can become better using our step-by-step hints within the game and the Learn section, which will teach you How To Play Sudoku with over 50 solving techniques, strategies, guides and articles. Sudoku taught me to think, strategise and plan for a given problem. It turns out to be quite easy (about one page of code for the main idea and two pages for embellishments) using two ideas: constraint propagation and search. There will always be 9 squares, but they could be any shape. Let's get started. Very Easy Easy Medium Hard Very Hard Super Hard. Sudoku Syndication. Learn solving techniques with our smart solver. Fiendish Sudoku posts five new puzzles every day. Services available to older Victorians such as help at home, residential care, health & support services. Help Read the help page on Sudoku puzzles for a more detailed explanation. com you can solve a new sudoku puzzle that matches your level of expertise. Sudoku puzzles (Su Doku) My database includes 6913752 puzzles for the moment and I'm constantly generating more. I have free Sudoku puzzles. Warning! This sudoku puzzle is only suitable for absolute sudoku experts. Fill the grid with your keyboard so that every row, column and 3×3 box contains the digits 1 to 9, without repeating. SuDoku Archive for October 2012. You want to try sudoku, but you don't know where to begin. Please share our sudoku puzzles. We have the world exclusive: the first truly interactive Killer Sudoku solver and generator. Note: we're still tuning up the gameplay so if you feel something's wrong or would like some feature added, just let us know. Good at Sudoku? Here's some you'll never complete February 12, 2012 6. JigSawDoku Variations Download. Sudoku Expert: 400 expert sudoku puzzles, sudoku very hard level for difficult sudokupuzzle enthusiasts (Sudoku evil. However, as you can see, instead of the usual regularly shaped subareas, known as nonets, the boxes are irregularly shaped. Pick other Sudoku puzzle types and difficulty from easy to hard graded by our solver. There are 5 difficulty levels, sudoku for kids,easy,hard,expert and extreme diagonal sudoku puzzles. Very Hard sudoku ! Jump to. If you would like to try to solve the first puzzle, download and print out this PDF Sudoku very hard puzzle #13 and follow along. All of the same rules apply, but now you're working on multiple planes. Our SUPER popular 9x9 Sudoku. I really enjoy the different skill levels - I use the Easy ones just to relax. Enter numbers into the blank spaces so that each row, column and 3x3 box contains the numbers 1 to 9 without repeats. • "The game is perfect! I am really loving Sudoku. daily-sudoku. 013 seconds). Holmes presents a collection of classic Sudoku puzzles that charge and keep the mind in top shape. Here you can get new Samurai Sudokus daily with solutions. Here's a summary of the rules of sudoku, in case you've never played before or need a refresher. You will find three Samurai Sudokus and on the last page the solution for the Samurai Sudokus in this PDF document. Some of the cages have no sum value attached. Sudoku: 400+ Sudoku Puzzles with Easy, Medium, Hard, and Very Hard Difficulty Levels (Sudoku Puzzle Book) by Rebecca Robbins | Sep 7, 2016 4. Very Hard sudoku ! Jump to. Play the sudoku puzzle that's twisting brains the world over. Free Printable Samurai Sudoku Puzzles. Easy Medium Hard Evil. Learn to Solve Harder Sudoku Puzzles than You Thought Possible in Less Time than You Imagine! Start Learning Now!. In Will Shortz Presents Hot Sudoku: 200 Very Hard Puzzles, the New York Times' crossword editor and NPR's puzzlemaster has crafted some mindbenders to test your will and skill with numbers. This sudoku puzzle was published on Friday, 1st of November 2019 and is rated moderate. Fill the grid with your keyboard so that every row, column and 3×3 box contains the digits 1 to 9, without repeating. Sudoku for Kids. According to quantitative tests, Sudoku Puzzler has a wider difficulty range than most nationally syndicated Sudoku puzzles. It is extremely difficult. Complete the grid so every row, column and 3x3 box contains every digit from 1 to 9. No man is definitely an island, thus, he requires Best Payday Loan Consolidation Company a sparring companion, a loving mate, an other half, or anything you may call it up. The game of sudoku originated in the eighteenth century. In November 2006, The Times introduced a new extreme level of Sudoku giving players a more difficult level of logic: Super Fiendish. play sudoku online, example difficult sudoku puzzle. Sudoku History. If you can easily solve these puzzles, try to improve on the time you need to solve Sudoku. There's a lot of discussion going on online about one very important strategy of the game!. This means they are for the seasoned professional with a lot of experience playing Sudoku. How to Play. The hard part lies in solving the puzzle! A sudoku puzzle consists of a 9 by 9 grid. All sudoku puzzles are absolutely free to print or copy with no files or templates to download. too! Want to save some trees? Try my Interactive Sudoku, an online version of these puzzles that works on your browser or iPad. Ardson] on Amazon. You can print sudoku puzzles free from your computer. Play Sudoku online from easy to evil. How to Play. Sudoku for web or blog and also to print. Sudoku Printables Options: You can select a set of four sudoku puzzles/grids from the top dropdown list or you can pick individual sudoku puzzles or blank grids in the dropdowns above each grid. Accessibility Help. There are Easy, Medium, and Hard puzzles. It is now quickly spreading worldwide. Pic-a-Pix Fill-a-Pix Hashi CalcuDoku. Solving Every Sudoku Puzzle by Peter Norvig In this essay I tackle the problem of solving every Sudoku puzzle. Free diabolic printable Sudokus! PrintMySudoku. com,cdf@gmail. 6x6 Killer puzzles - how hard can they be? ocean and eleven should have paired up to make a sudoku-solving duo called Ocean's Eleven. Easy Sudoku for Fri 1/Nov/2019. What is Sudoku? A Sudoku puzzle is defined as a logic-based, number-placement puzzle. Perfect to use to solve very hard Sudoku puzzles. In other words, the other guys' Hard puzzles are about equivalent to their Medium puzzles. In my opinion, it is THE BEST on-line Sudoku, and better than many of the printed ones in Sudoku pubs. All of the same rules apply, but now you're working on multiple planes. Show solutions. Our Sudoku Archive contains thousands of graded puzzles. Even if you think you're bad at math, you can still do well at sudoku. Play hard sudoku online for free. Perfect to use to solve very hard Sudoku puzzles. Download Free Diagonal Sudoku Puzzles. Just line up nine complete sudoku grids into a three-dimensional cube that requires complete rows, columns and boxes on three interconnected axes, and you've got yourself a 3-D sudoku puzzle. There's a lot of discussion going on online about one very important strategy of the game!. The last sub is critical of course to the solution, but some of the subs before it can be eliminated and still lead to an easy solution of the 'unsolvable'. Gallery of rated sudoku puzzles with online play and print options really tough puzzles @ Sudoku Gallery @ paulspages. Click on one of the puzzle links below to play one of our 1001 hard samurai sudoku puzzles! These puzzles are completely free for your own personal use! This site is now completely free from adverts, thanks to the FolkLaw band who enjoyed doing our puzzles so much on tour they decided to help us out!. Print Sudoku 2020-02-06, Level very hard. too! Want to save some trees? Try my Interactive Sudoku, an online version of these puzzles that works on your browser or iPad. Very Hard Sudoku of the Day. You must determine what the individual cells in the cage sum to by looking at surrounding regions. Hard - very hard version: 16x16+17x17+19x19+20x20 Kakuro Sudoku and 16x16+17x17+19x19+20x20 Hitori sudoku puzzles. The general rule with sudoku puzzles is that as the number of starting clues in the puzzle goes down, the difficulty in solving the puzzle goes up. It is extremely difficult.