6 Advanced Sudoku Strategies explained - SudokuOnline.io
www.sudokuonline.io6 Advanced Sudoku Strategies explained · 1. The X-Wing · 2. The Swordfish · 3. Forcing Chains · 4. The XY-Wing · 5. Unique Rectangle Type 1 · 6. Nishio.
Sudoku Solving Techniques - Kristanix Games
www.kristanix.comUse the first few techniques to insert as many numbers as you can. Then, when you can add no more numbers to the board using the basic techniques, try the more ...
Advanced Techniques - Learn Sudoku
www.learn-sudoku.comAdvanced Techniques. A Quick Warning… At this point, you have learned all the basic Sudoku concepts. And while understanding them is certainly no easy task, ...
How to Solve Expert Sudoku Level 5 Game 5 | Suresolv
suresolv.comExpert Sudoku Strategy and techniques for quick solution ... As a strategy we always try first—the row-column scan to find the valid cell at any ...
Advanced Sudoku Solving Techniques and Tips
sudokusolver.comWith many advanced techniques, the key is to spot patterns within your pencil marks to eliminate possibilities within other squares. Whenever you solve a square ...
Killer Sudoku Tips and Strategies
www.killersudokuonline.comKiller Sudoku Solving Strategies. There are three basic methods used to solving killer sudoku puzzles. The first is to use the strategies for solving regular ...
How to Solve Sudoku Puzzles (beginner and Advanced)
www.instructables.comIn this guide I will explain all of the tricks I have found to reduce the possibilities in a sudoku puzzle and ultimately solve it.
Sudoku Assistant -- Solving Techniques - St. Olaf College
www.stolaf.eduThe Sudoku Assistant uses several techniques to solve a Sudoku puzzle: cross-hatch scanning, row/column range checking, subset elimination, grid analysis,and ...
Top Nine Most Often Used Strategies for Solving Expert ...
www.pinterest.comMaster these strategies and be an expert. Please visit my channel and check out my other uploads such as "How to solve a Sudoku puzzle - A Tutorial", ...
Pin on Sudoku - Pinterest
www.pinterest.comTop Nine Most Often Used Strategies for Solving Expert Sudoku Puzzles. Video by ... Sudoku Tricks: The X-Wing And How To Spot It - YouTube Math Literature.
Sudoku techniques - Conceptis Puzzles
www.conceptispuzzles.comAs Sudoku puzzle levels get harder you will find the simple scanning methods described above are not enough and more sophisticated solving techniques must ...
Sudoku Tips and Tricks: Getting a Fast Start
sudoku.comSo, to help you get a fast start, we asked our Sudoku expert to produce a short video on this topic. In this video, we will provide several Sudoku tips that ...
Sudoku Tips : Learn How To Solve Sudoku Puzzles
www.sudokuessentials.comTo solve the hardest puzzles and games, use advanced strategies such as X-Wing, XY-Wing, and Swordfish. There are two ways to approach the Sudoku Solving ...
How to Solve Sudoku Faster: Beginner Techniques - Airship ...
www.airshipman.comFocus on only one part of a square, row, or column rather than worrying about the entire grid all in one go. Slowly work your way up until you ...
How to Solve a Sudoku - wikiHow
www.wikihow.com
Medium and Hard Sudoku Solving Tips With Sample Videos
hobbylark.comCheck out these tips, which include step-by-step videos demonstrating how to solve hard Sudoku and expert-level puzzles.
Killer Sudoku Strategy Tips - Puzzle Books
www.puzzle-book.co.ukRules of Killer Sudoku · Place the numbers 1 - 9 once in each region · The regions are the 9 columns, 9 rows and 9 3x3 bold-lined boxes · Ensure that the numbers ...
Sudoku Techniques – Sudoku of the Day
www.sudokuoftheday.comTechniques For Solving Sudoku ... Sudoku is a puzzle involving logic – no arithmetic or guessing is required! The basic idea of completing puzzles is to find ...
The Math Behind Sudoku: Solving Strategy - Department of ...
pi.math.cornell.eduThe most basic strategy to solve a Sudoku puzzle is to first write down, in each empty cell, all possible entries that will not contradict the One Rule with ...
Sudoku Swami: Complete Course Sudoku Puzzle Solving ...
sudokuswami.comSudoku Swami guides you through step by step strategies to crack sudoku ... Watch the videos tailored to help you learn advanced sudoku puzzle tips and tricks!
Solving Sudoku - Angus Johnson
www.angusj.comRules and hints for solving Sudoku puzzles. ... Fortunately, programs like Simple Sudoku will do this for you, while leaving you with the fun of applying ...
Sudoku Tips & Tricks
www.sudokulovers.comSome articles about Sudoku related topics, including tips & tricks, ... puzzles and it is also known to others by the names Extreme Sudoku or Expert Sudoku.
Tips and Methods for Solving Sudoku Puzzles
www.sudoku129.comSolving methods > Before starting : A sudoku puzzle comprises 9 rows, 9 columns and 9 block. Each of them must contain all numbers from 1 ...
Sudoku Solving Tactics
www.sudokuslam.comThis page explains tactics for solving these puzzles, and it also elaborates on the hints that you may encounter if you get stuck.
How to become an expert at Sudoku | Kinna Reads
kinnareads.comLearn the intermediate solving techniques: the Fishy solving methods. Download a Sudoku computer program. There are several available, all are ...
Killer Sudoku strategies tips and solving techniques - tectonic ...
www.tectonicpuzzel.euKILLER SUDOKU TIPS AND TRICKS · SOME TERMINOLOGY FIRST · KILLER SUDOKU CHEAT SHEET WITH COMBINATIONS · LIMITED POSSIBILITIES · REQUIRED DIGIT · REDUCE NUMBER ...
3 Tips to Solve a Sudoku Puzzle - Cantissimo Senior Living
www.cantissimoseniorliving.comThere is no one-trick-solves-all or guaranteed way out when it comes to solving Sudoku puzzles. You need to use your mind and think ...
How I Used Alteryx to Solve Sudoku Puzzles 4000 Times Faster
www.tessellationtech.ioWhile the game itself can be challenging and complex, several strategies can be used successfully to find the solution. Sometimes, these ...
Sudoku Tips: Advanced Ghosting, Tagging & Line Checking
www.memory-improvement-tips.comUnless you are already an expert Sudoku player, you may want to work ... methods to be able to solve Medium, Hard, Very Hard, and "insane" Sudoku puzzles.
Are there published Sudoku puzzles that require guessing?
puzzling.stackexchange.comInstead, a handful of techniques could be used to solve the puzzle completely, including the hard puzzles. Are there published puzzles out there that do require ...
Sudoku tips: How to solve Sudoku: The mathematics of Su Doku
theory.tifr.res.inOur methods differ: I try to illustrate some often-used tricks in ... You must be an expert at this method by now, so I leave that in ...
How to solve sudoku puzzles @ paulspages.co.uk
www.paulspages.co.ukGuide to solving sudoku puzzles. ... You can also get and solve puzzles online with step-by-step hints and a 13,000+ puzzle database, at SudokuXP.
Top 7 Tips on Sudoku for beginners - MPL
www.mpl.liveTips For Sudoku Beginners · Choosing the Right Difficulty Level · Scan the Grid to Start · Build On The Momentum · Use Each Number Only Once · Learn ...
What strategy tips will help me solve Killer Sudoku puzzles?
www.clarity-media.co.ukYou will need to use all the strategies that you use to solve sudoku, plus some others too. The main extra technique needed is to look through all the boxes and ...
Sudoku - New York Times Number Puzzles
www.nytimes.comOther Games. Sudoku. Tips and Tricks ... The Hint button will highlight the next logical square to solve that is empty or incorrect.
The Secret Formula For Solving Sudoku Puzzles - Barnes ...
www.barnesandnoble.comThe Secret Formula For Solving Sudoku Puzzles: Become An Expert Sudoku Solver With These Easy To Learn Sudoku Tricks On Solving Sudoku ...
Sudoku Puzzle Tips and Tricks
silo.tipsTricks and Tips for Solving a Sudoku Puzzle ... Sudoku Strategies for Surefire Success ... Sudoku puzzle, according to the expert players of the game, ...
Sudoku Solver by Andrew Stuart - SudokuWiki.org
www.sudokuwiki.orgSudoku Solver by Andrew Stuart. Shows the logic behind solving Sudoku square by square. ... Strategies are ordered by complexity. Any strategy that is ...
Sudoku Patterns | Patterns can help solve more difficult puzzles
sudokuprimer.comPatterns are similar to techniques; they are another "tool" in your toolbelt. ... Hard and expert level puzzles may not have patterns at the start but as ...
6 Advanced Sudoku Strategies explained - SudokuOnline.io
www.sudokuonline.io6 Advanced Sudoku Strategies explained · 1. The X-Wing · 2. The Swordfish · 3. Forcing Chains · 4. The XY-Wing · 5. Unique Rectangle Type 1 · 6. Nishio.
Sudoku Solving Techniques - Kristanix Games
www.kristanix.comUse the first few techniques to insert as many numbers as you can. Then, when you can add no more numbers to the board using the basic techniques, try the more ...
Advanced Techniques - Learn Sudoku
www.learn-sudoku.comAdvanced Techniques. A Quick Warning… At this point, you have learned all the basic Sudoku concepts. And while understanding them is certainly no easy task, ...
How to Solve Expert Sudoku Level 5 Game 5 | Suresolv
suresolv.comExpert Sudoku Strategy and techniques for quick solution ... As a strategy we always try first—the row-column scan to find the valid cell at any ...
Advanced Sudoku Solving Techniques and Tips
sudokusolver.comWith many advanced techniques, the key is to spot patterns within your pencil marks to eliminate possibilities within other squares. Whenever you solve a square ...
Killer Sudoku Tips and Strategies
www.killersudokuonline.comKiller Sudoku Solving Strategies. There are three basic methods used to solving killer sudoku puzzles. The first is to use the strategies for solving regular ...
How to Solve Sudoku Puzzles (beginner and Advanced)
www.instructables.comIn this guide I will explain all of the tricks I have found to reduce the possibilities in a sudoku puzzle and ultimately solve it.
Sudoku Assistant -- Solving Techniques - St. Olaf College
www.stolaf.eduThe Sudoku Assistant uses several techniques to solve a Sudoku puzzle: cross-hatch scanning, row/column range checking, subset elimination, grid analysis,and ...
Top Nine Most Often Used Strategies for Solving Expert ...
www.pinterest.comMaster these strategies and be an expert. Please visit my channel and check out my other uploads such as "How to solve a Sudoku puzzle - A Tutorial", ...
Pin on Sudoku - Pinterest
www.pinterest.comTop Nine Most Often Used Strategies for Solving Expert Sudoku Puzzles. Video by ... Sudoku Tricks: The X-Wing And How To Spot It - YouTube Math Literature.
Sudoku techniques - Conceptis Puzzles
www.conceptispuzzles.comAs Sudoku puzzle levels get harder you will find the simple scanning methods described above are not enough and more sophisticated solving techniques must ...
Sudoku Tips and Tricks: Getting a Fast Start
sudoku.comSo, to help you get a fast start, we asked our Sudoku expert to produce a short video on this topic. In this video, we will provide several Sudoku tips that ...
Sudoku Tips : Learn How To Solve Sudoku Puzzles
www.sudokuessentials.comTo solve the hardest puzzles and games, use advanced strategies such as X-Wing, XY-Wing, and Swordfish. There are two ways to approach the Sudoku Solving ...
How to Solve Sudoku Faster: Beginner Techniques - Airship ...
www.airshipman.comFocus on only one part of a square, row, or column rather than worrying about the entire grid all in one go. Slowly work your way up until you ...
How to Solve a Sudoku - wikiHow
www.wikihow.com
Medium and Hard Sudoku Solving Tips With Sample Videos
hobbylark.comCheck out these tips, which include step-by-step videos demonstrating how to solve hard Sudoku and expert-level puzzles.
Killer Sudoku Strategy Tips - Puzzle Books
www.puzzle-book.co.ukRules of Killer Sudoku · Place the numbers 1 - 9 once in each region · The regions are the 9 columns, 9 rows and 9 3x3 bold-lined boxes · Ensure that the numbers ...
Sudoku Techniques – Sudoku of the Day
www.sudokuoftheday.comTechniques For Solving Sudoku ... Sudoku is a puzzle involving logic – no arithmetic or guessing is required! The basic idea of completing puzzles is to find ...
The Math Behind Sudoku: Solving Strategy - Department of ...
pi.math.cornell.eduThe most basic strategy to solve a Sudoku puzzle is to first write down, in each empty cell, all possible entries that will not contradict the One Rule with ...
Sudoku Swami: Complete Course Sudoku Puzzle Solving ...
sudokuswami.comSudoku Swami guides you through step by step strategies to crack sudoku ... Watch the videos tailored to help you learn advanced sudoku puzzle tips and tricks!
Solving Sudoku - Angus Johnson
www.angusj.comRules and hints for solving Sudoku puzzles. ... Fortunately, programs like Simple Sudoku will do this for you, while leaving you with the fun of applying ...
Sudoku Tips & Tricks
www.sudokulovers.comSome articles about Sudoku related topics, including tips & tricks, ... puzzles and it is also known to others by the names Extreme Sudoku or Expert Sudoku.
Tips and Methods for Solving Sudoku Puzzles
www.sudoku129.comSolving methods > Before starting : A sudoku puzzle comprises 9 rows, 9 columns and 9 block. Each of them must contain all numbers from 1 ...
Sudoku Solving Tactics
www.sudokuslam.comThis page explains tactics for solving these puzzles, and it also elaborates on the hints that you may encounter if you get stuck.
How to become an expert at Sudoku | Kinna Reads
kinnareads.comLearn the intermediate solving techniques: the Fishy solving methods. Download a Sudoku computer program. There are several available, all are ...
Killer Sudoku strategies tips and solving techniques - tectonic ...
www.tectonicpuzzel.euKILLER SUDOKU TIPS AND TRICKS · SOME TERMINOLOGY FIRST · KILLER SUDOKU CHEAT SHEET WITH COMBINATIONS · LIMITED POSSIBILITIES · REQUIRED DIGIT · REDUCE NUMBER ...
3 Tips to Solve a Sudoku Puzzle - Cantissimo Senior Living
www.cantissimoseniorliving.comThere is no one-trick-solves-all or guaranteed way out when it comes to solving Sudoku puzzles. You need to use your mind and think ...
How I Used Alteryx to Solve Sudoku Puzzles 4000 Times Faster
www.tessellationtech.ioWhile the game itself can be challenging and complex, several strategies can be used successfully to find the solution. Sometimes, these ...
Sudoku Tips: Advanced Ghosting, Tagging & Line Checking
www.memory-improvement-tips.comUnless you are already an expert Sudoku player, you may want to work ... methods to be able to solve Medium, Hard, Very Hard, and "insane" Sudoku puzzles.
Are there published Sudoku puzzles that require guessing?
puzzling.stackexchange.comInstead, a handful of techniques could be used to solve the puzzle completely, including the hard puzzles. Are there published puzzles out there that do require ...
Sudoku tips: How to solve Sudoku: The mathematics of Su Doku
theory.tifr.res.inOur methods differ: I try to illustrate some often-used tricks in ... You must be an expert at this method by now, so I leave that in ...
How to solve sudoku puzzles @ paulspages.co.uk
www.paulspages.co.ukGuide to solving sudoku puzzles. ... You can also get and solve puzzles online with step-by-step hints and a 13,000+ puzzle database, at SudokuXP.
Top 7 Tips on Sudoku for beginners - MPL
www.mpl.liveTips For Sudoku Beginners · Choosing the Right Difficulty Level · Scan the Grid to Start · Build On The Momentum · Use Each Number Only Once · Learn ...
What strategy tips will help me solve Killer Sudoku puzzles?
www.clarity-media.co.ukYou will need to use all the strategies that you use to solve sudoku, plus some others too. The main extra technique needed is to look through all the boxes and ...
Sudoku - New York Times Number Puzzles
www.nytimes.comOther Games. Sudoku. Tips and Tricks ... The Hint button will highlight the next logical square to solve that is empty or incorrect.
The Secret Formula For Solving Sudoku Puzzles - Barnes ...
www.barnesandnoble.comThe Secret Formula For Solving Sudoku Puzzles: Become An Expert Sudoku Solver With These Easy To Learn Sudoku Tricks On Solving Sudoku ...
Sudoku Puzzle Tips and Tricks
silo.tipsTricks and Tips for Solving a Sudoku Puzzle ... Sudoku Strategies for Surefire Success ... Sudoku puzzle, according to the expert players of the game, ...
Sudoku Solver by Andrew Stuart - SudokuWiki.org
www.sudokuwiki.orgSudoku Solver by Andrew Stuart. Shows the logic behind solving Sudoku square by square. ... Strategies are ordered by complexity. Any strategy that is ...
Sudoku Patterns | Patterns can help solve more difficult puzzles
sudokuprimer.comPatterns are similar to techniques; they are another "tool" in your toolbelt. ... Hard and expert level puzzles may not have patterns at the start but as ...
Sudoku techniques - Conceptis Puzzles
www.conceptispuzzles.comThe easiest way starting a Sudoku puzzle is to scan rows and columns within each triple-box area, eliminating numbers or squares and finding situations where ...
Sudoku Solving Techniques - Kristanix Games
www.kristanix.comUse the first few techniques to insert as many numbers as you can. Then, when you can add no more numbers to the board using the basic techniques, try the more ...
Sudoku Tips : Learn How To Solve Sudoku Puzzles
www.sudokuessentials.comUse these Sudoku hints and strategies to solve Sudoku puzzles easier. When you begin to play Sudoku, you probably will have moments when you reach a roadblock.
The Ultimate Sudoku Strategy Guide | Learn all the Tricks
bestofsudoku.comSudoku is a popular puzzle with many different versions. Learn all the tips and secrets to up your sudoku game!
5 Tips for Sudoku Beginners - Senior Lifestyle
www.seniorlifestyle.com5 Tips for Sudoku Beginners · 1. Notice any definites. Definites are numbers that are definitely going to be in a certain box. · 2. Do this for all the numbers.
20 Must-Know Sudoku Tips And Tricks For Beginners ...
www.gamesver.com1. Familiarize yourself with the rules. 2. Start small. 3. Keep progressing. 4. Work on the easiest sections first. 5. Work with a pencil & eraser. 6. Apply ...
6 Advanced Sudoku Strategies explained - SudokuOnline.io
www.sudokuonline.io6 Advanced Sudoku Strategies explained · 1. The X-Wing · 2. The Swordfish · 3. Forcing Chains · 4. The XY-Wing · 5. Unique Rectangle Type 1 · 6. Nishio.
Sudoku Tips and Tricks: Getting a Fast Start
sudoku.comOur useful video tips and tricks will help players to get a fast start and give an opportunity to go through the different strategies of Sudoku game in ...
How to Solve Sudoku Faster: Beginner Techniques - Airship ...
www.airshipman.comFocus on only one part of a square, row, or column rather than worrying about the entire grid all in one go. Slowly work your way up until you ...
Killer Sudoku Tips and Strategies
www.killersudokuonline.comBasic Solving Strategies · Rule of 1: This comes directly from the definition of sudoku. · Rule of Necessity: This rule can be applied to sudoku regions (i.e., ...
Solving Sudoku - Angus Johnson
www.angusj.comRules and hints for solving Sudoku puzzles. ... Fortunately, programs like Simple Sudoku will do this for you, while leaving you with the fun of applying ...
Advanced Techniques - Learn Sudoku
www.learn-sudoku.comAdvanced Techniques. A Quick Warning… At this point, you have learned all the basic Sudoku concepts. And while understanding them is certainly no easy task, ...
Sudoku Techniques you can master
sudokuprimer.comSudoku Solving Techniques. Tips and tricks that help you solve more difficult puzzles. Introduction. This page lists different techniques you can use to ...
Sudoku Puzzle Tips and Tricks
silo.tipsTricks and Tips for Solving a Sudoku Puzzle. Sudoku Solutions: Helpful for Some, Boring for Others. Be a Sudoku Solver and Exercise Your Brains.
Sudoku Tips & Tricks
www.sudokulovers.comSome articles about Sudoku related topics, including tips & tricks, and content about popular things related to the game.
Top 7 Tips on Sudoku for beginners - MPL
www.mpl.liveThe trick here is to start placing numbers in the grids that already have most of the numbers. Finding the missing solution for the remaining ...
Sudoku strategies
www.sudokudragon.comIt almost always finds a square or two that can be solved. At the heart of the technique is to take groups of three rows and columns in turn, working ...
3 Tips to Solve a Sudoku Puzzle - Cantissimo Senior Living
www.cantissimoseniorliving.comThere is no one-trick-solves-all or guaranteed way out when it comes to solving Sudoku puzzles. You need to use your mind and think ...
Tips and tricks on how to beat every Killer Sudoku puzzle
www.amazon.comSolved: Tips and tricks on how to beat every Killer Sudoku puzzle [Charger, Michael] on Amazon.com. *FREE* shipping on qualifying offers. Solved: Tips and ...
How to Solve a Sudoku - wikiHow
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Killer Sudoku Strategy Tips - Puzzle Books
www.puzzle-book.co.ukThe rules and strategy tips on successfully solving Killer Sudoku puzzles. The aim of the puzzle is to place the numbers from 1 - 9 once in each region of ...
Tips and Methods for Solving Sudoku Puzzles
www.sudoku129.comA sudoku puzzle comprises 9 rows, 9 columns and 9 block. Each of them must contain all numbers from 1 to 9. The following concepts are there to help you ...
Sudoku Assistant -- Solving Techniques - St. Olaf College
www.stolaf.eduThe Sudoku Assistant uses several techniques to solve a Sudoku puzzle: cross-hatch scanning, row/column range checking, subset elimination, grid analysis,and ...
Easy-to-follow Sudoku Tips and Tricks Specially for Beginners
plentifun.comSudoku is a popular Japanese number puzzle with a deceptively simple game of logic. Let us try and understand some basic Sudoku tips for beginners.
Sudoku Swami: Complete Course Sudoku Puzzle Solving ...
sudokuswami.com... guides you through step by step strategies to crack sudoku puzzles. Watch the videos tailored to help you learn advanced sudoku puzzle tips and tricks!
Tips to win Sudoku | UltraBoardGames
www.ultraboardgames.comOur mission is to produce engaging articles like reviews, tips and tricks, game rules, strategies, etc. If you like the content of a board game on this site, ...
Sudoku Tips and Tricks - Real Sudoku3D
www.realsudoku3d.comStrategies, Tips and Hints. Back to the Basics: While Sudoku puzzles might look impossible at first glance, they can be deceptively simple. You can solve all ...
Medium and Hard Sudoku Solving Tips With Sample Videos
hobbylark.comMaybe you will add some of these described techniques to your bag of tricks so that you can start to tackle harder sudoku puzzles. Good luck, ...
How-to-Solve-Sudoku.pdf - Penny Dell Puzzles
www.pennydellpuzzles.comFinding the candidates to eliminate is where advanced solving techniques—called Deductions—come in. There are 8 different deductive techniques that SudokuSolver ...
Sudoku Techniques – Sudoku of the Day
www.sudokuoftheday.comTechniques For Solving Sudoku ... Sudoku is a puzzle involving logic – no arithmetic or guessing is required! The basic idea of completing puzzles is to find ...
Sudoku Tricks: Ghosting, Tagging & Line Checking - Memory ...
www.memory-improvement-tips.comSudoku Tricks: Solving a Medium Puzzle · Sudoku Trick #1: Ghosting · Sudoku Trick #2: Row/Column Counting · Sudoku Trick #3: Tagging · Sudoku Trick #4: Line ...
Killer Sudoku strategies tips and solving techniques - tectonic ...
www.tectonicpuzzel.euKILLER SUDOKU TIPS AND TRICKS · SOME TERMINOLOGY FIRST · KILLER SUDOKU CHEAT SHEET WITH COMBINATIONS · LIMITED POSSIBILITIES · REQUIRED DIGIT · REDUCE NUMBER ...
Tips and Tricks by Mark :: Sandwich Sudoku General ...
steamcommunity.comOne of the most important tips is to try and establish where the 1s and 9s ... 1s and 9s and then go on to solve the remaining Sudoku puzzle).
Killer Sudoku Solving Techniques and Tips
sudokusolver.comAn essential Killer Sudoku solving technique is the "45 rule". This uses the fact that every row, column and block must contain each of the numbers 1 to 9 once.
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www.tech2wires.comsudoku tips,What is the trick to solving Sudoku puzzles?,What are the 10 steps to solving Sudoku?,Is there a formula for solving Sudoku?
Sudoku Solving Tactics
www.sudokuslam.comHowever, the more difficult puzzles on Sudoku Slam have been designed to ... and it also elaborates on the hints that you may encounter if you get stuck.
Sudoku X Strategy Tips - Puzzle Club
www.thepuzzleclub.comSudoku X: hints and tips on solving this popular variant of sudoku with extra regions from The Puzzle Club..
Sudoku:solving It for Beginners and the Expirienced
www.instructables.comI will be showing the most basic to not so basic methods,trick and tips to finish a sudoku.this instructable is for anyone who plays or wants to play sudoku ...