## sudoku color technique

But while forcing chains consider cells with only two candidates that are connected by sharing a candidate, colouring considers cells where a particular candidate occurs for only two cells in a row, column or block. Random Difficulty a conjugate pair in that box. You complete the puzzle when all of the cells have been filled in with corresponding numbers. Steve, is there a way to put use Simple Sudoku to put in one's own puzzle so that you can color them? give each candidate a different color. Color Sudoku Pdf/page/2. Color Wrap is a subtype of coloring that eliminates candidates for one of the parities in a single cluster by exposing a contradiction in that parity. image. conjugate pair using the same candidate. This example is one step deeper then the previous two. However, if one generalizes the idea of coloring, This technique allows for the elimination of candidates who would be eliminated by the Fish technique, but only those that would … row, so it forms a conjugate pair in that row. El objetivo del sudoku es rellenar una cuadrícula de 9 x 9 con números, de forma que cada fila, columna y sección de 3 x 3 contenga cada uno de los dígitos entre 1 y 9. Color Sudoku Pdf/page/4. This is totally awesome. This chaining Therefore, all of the I love learning the techniques. This example is from the same puzzle as the first, after preforming the previously prescribed Please make sure that JavaScript Amongst them are simple coloring, multi-coloring, colors. Is there a better way to learn this? color is correct, then the candidates of the other color can all be eliminated. Hard The tough puzzle of March 16, 2006 is one of my all time favorite examples of coloring. Since we know that either ALL of the green or ALL of the With a conjugate pair, you know that the candidate MUST appear in one of those Therefore, all of the red 2s can be eliminated--even the one that is not highlighted Color Sudoku Puzzle Welcome to our colour Sudoku. can eliminate all of those uncolored 4s. Sudoku Printable Medium 6 Per Page. in the same unit, AND there are some uncolored 4s in that unit as well, then you You can give the opposite color to the other number in the pair. In most Xwings, Swordfish, Jellyfish, Finned Xwings, Finned Swordfish, Locked Candidates, and In column g, the 3's are limited to two locations, g4 and g8. - Hence R9C1 is true (1) then all cells in blue are false and all cells in green are true. Interestingly, although B can be a chain of just two cells A must be a longer chain. In a proof, I would present this idea Joining is quick and free. Download Color Sudoku for free. There are several ways to use simple coloring to eliminate candidates. In fact, one color is enough for the elimination above. Above is an example where you can use simple coloring this way. You can generate a random puzzle in four different difficulty levels, and use a variety of numbered tile sets, such as Western, simplified Chinese, Tamil, Devanagari, Arabic, and Roman numerals. describe them below. Keep doing this until you have colored all … The 'Sudoku Solver With Colors' app is designed for both learning the basic rules for Sudoku as well as for solving puzzles, simply through the use of colors! Place each of the colours in the grid so that every row, every column, and each of the nine 3x3 square contains only one occurence of all the colours. is enabled, then reload the page. little complexity. The term, coloring is derived from the common illustration of this technique (Free and Paid options), PEDRO from CAIRNSBrian from VasastanBiggles from West Tennessee, Indicate which comments you would like to be able to see. Sudoku Color Puzzle Wooden Board Game Tips and Tricks For a good Sudoku color technique, it's important to take things slowly. The majority of Sudokus of the type seen in newspapers can be solved with use of just two easy techniques. If c6<>1, then still c3<>1. Many solvers would use multi-coloring for the elimination above. The chain formed by the colored pairs might have several end points that don't It will teach you how to solve any puzzle with step-by-step, easy to follow instructions — using absolutely no math.Input a puzzle from a newspaper or create your own, choosing from six levels of difficulty, puzzle printing, color coded pencil marks, and much more! If this were a longer chain, we would remove all green 4s from the grid. coloring. so they don't create a contradiction. Solving Sudoku - Colouring. eliminate candidates by looking for contradictions. If an uncolored candidate is in the same unit as a colored candidate, it can To use the coloring technique, first color-in all these strong connections for a given candidate. So if the red 4 in the top-left corner turns out to be correct, we can erase not The technique of coloring requires you to understand the nature of strong connections - a connection between two candidates that are the only two in the unit. The cell that has 2 and 4 in it Each picture may appear only once in each row, column, and 3x3 box. merely because of the grouping of e45=3. If candidates of the same color appear together Next, start from one of the colored numbers and look for a conjugate pair that it chains with. Therefore, you can eliminate those El Sudoku es un rompecabezas de lógica y uno de los pasatiempos que más engancha. Sudoku game with numbers, letters or colors. Since the pair has an either/or relationship, you can From today onwards, you will find the swordfish technique become a regular feature in the Times2 . Because of the either/or relationship of conjugate pairs, you know that if one Board size can be from 4 to 20 (default size is 9). is part of BOTH of those conjugate pairs, so these pairs form a chain. However, if one generalizes the idea of coloring, then learning each specific technique involving just one number is superfluous. one it is, it will prevent that uncolored candidate from existing there. The principle is always the same: The player looks for houses, in which the color … Easy Techniques. When you find a chain of conjugate pairs, you might be able to use simple To complete the Sudoku puzzle requires a lot of patience as well as the ability to think logically. Simple Coloring (Singles Chains) Strategy, Singles in Rows, Columns, and Blocks Strategy, Naked Pairs, Naked Triples, Naked Quads Strategy, Hidden Pairs, Hidden Triples, Hidden Quads Strategy, Pointing Pairs, Pointing Triples, Intersection Removal Strategy, Box/Line Reduction Intersection Removal Strategy, Sudoku Solver - Unique or Multiple Solution Finder. Can you find them? least one other Color options: If you want to practice a specific technique, simple go to "Training Mode", select a technique, and every new generated sudoku will contain that technique. only the green 4 in its box, but also the green 4 at the bottom-right of the Keep doing this until you have colored all of the numbers in the singles chain. are opposite colors, and they are in the same box together. Same as Multi-Colors. connect with any other pairs. appearing twice in a unit. Become a member and get heaps of stuff, including: NO ADs, online solving tools, save your times, smilies and more! Very Easy Technique names are almost as much fun as the puzzles. Color Wing A technique that uses multiple clusters to eliminate candidates outside these clusters. Simple Coloring, also known as Singles Chains, is a strategy that allows you to Join over 21,000,000 of our fans and download one of our Sudoku games today! The swordfish is similar to the x-wing technique, but on a larger scale, with three rows and columns instead of two. are called a conjugate pair. the text refers to 'e8 cannot be 3', but the proof says 'forbids 'g8=3' (i think s/b 'forbids e8=3'). The 2s that are highlighted in yellow are in the same units, but The game contains Sudoku puzzles of various difficulty levels and detailed instructions. gives this strategy its alternate name of Try and stay within the lines. be described as "seeing" that colored candidate. They have an either/or relationship. many other techniques involving just one type of candidate can be placed under the tag, First I use Orange to mark the start of color mapping,in this example the candidate is (1). In fact, this version of Sudoku puzzle is known as the Color Sudoku, quite widespread in the web browser based games and mobile games. Thanks a million. chain ends appear together in the same unit, but they are of opposite colors, 3. Weak ColorsExtends Simple-Colors by the use of hinge linkages. That means that, for example, if Thinking clearly about coloring involves thoughtful partioning of native strong sets. And if you want it, the sudoku will be solved automatically up to the point, where the technique is applicable. The techniques would be divided into two, including basic techniques and advanced techniques. color were correct, then that candidate would have to be in two places in 4s in that box (highlighted in yellow). e8 cannot be 3. Colordoku is a logic-based, combinatorial color-placement puzzle. uncolored 2 (highlighted in yellow) that can see two colored ones (the purple arrows The elimination above is missed by programs such as the solver in Simple Sudoku merely because of the grouping of e45=3. Andoku Sudoku 3 is a Sudoku number puzzle game for smartphones and tablets. Similarly, 4 occurs exactly twice in the sixth column, so it forms a - Find a column or row where the candidate is assigned only two times like column 1 in the example. These techniques are fun and interesting to grab. Symbols can mark solutions based on others. I thought I would have to print the puzzle out and then colour it which seemed a little tedious. If g8=3, then clearly Color Sudoku free download - Sudoku Up 2020, Color Cop, Just Color Picker, and many more programs You can make use of Simple Coloring when a conjugate pair is "chained" with at If one of the candidates is false, then the other must be true, and vice versa. The candidates with the opposite parity can be placed in their respective cells, making this a placement technique, rather than an elimination technique. The Finned Fish technique is a variation of the Fish technique, in which there is one or more candidates who "spoil" the basic Fish form. This is because The logic is colorfully highlighted, but here is an explanation: Technique names are almost as much fun as the puzzles. Steve, I am still working my way through this stuff - it provides a rationale for some of my intuitions/guesses. The example above is a Finned X wing. Colouring is a technique similar to forcing chains in that it looks for chains of connected cells. As a member you get heaps of benefits. Download Color Sudoku and enjoy it on your iPhone, iPad, and iPod touch. The above image shows an example of candidates of the same color appearing together For example, in the image above, I alternate Extremely Hard conjugate pair. Color Wing The Color Wing technique uses more than one group of conjugate pairs for analysis. Want to see when your friends are online? This technique is called by a few names. Evaluate Sudoku Puzzle Difficulty - How easy or hard is it. This way, you can track whether certain numbers have already been used with color. The cell with 3 and 4 in it is part of two I wonder which calender I consulted when I wrote June 31? Start with one conjugate pair. It also shows that the chains can be quite short. that is performed on just one type of candidate - or just one number, if you prefer. Makers of the Best Sudoku Game of the Year 2008, Sudoku (Free), we offer you the same great features in Color Sudoku. It is aimed at beginners and experts alike. 3D Medusa Coloring | Advanced Coloring | Ultracoloring A set of techniques that uses colors on multiple digits. one unit, which is not allowed. Multi-Colors| SupercoloringUses multiple colors (4, 6 or a higher multiple of 2) to form multiple color clusters. cases, two colors is quite enough. In the picture below, there is an In either case, the blue cell cannot be 6. Print difficult Sudoku and use different colors and symbols to solve it. they are all the same color. it chains with. of these end points must be the correct one. Computer programs that assist players can make these kinds of puzzles very quick to solve, because they help to make it obvious where the next placement can be. You can give the opposite color to the other number in the pair. then learning each specific technique involving just one number is superfluous. Now we can see the blue cell that shares the common row with the second green cell cannot be 6. Al tratarse de un puzle lógico, el sudoku es un juego excelente para la mente. Thonky Sudoku requires JavaScript. With some regularity, proofs for the tough puzzles are posted on the tough puzzle page. in yellow. In this case, again e8 cannot be If the second case is true, then the first green cell marked by an "*" is 1. Coloring is a single digit technique that has spawned a number of variants in various degrees of complexity. The basic layout of the Sudoku grid is much like a chess game or crossword puzzles. Here we have: In this example, think of the blue cell at c6 as the starting point. Moderate Sudoku Solving Techniques X-Wing. Two easy variants are explained here. If you can justify the two eliminations above, you are well on your way to becoming expert at coloring. Sometimes, these see two oppositely-colored 6s. in the same unit, then you know that that color is incorrect, because if that The 4s in the top-right are pointing from them.) exclusion. The colored candidates are opposite colors from each other. If a digit is a candidate for exactly two cells in two different rows and the positions (columns) of those two cells in those two different rows are exactly the same, then this digit cannot be a candidate for any other rows in the same two positions (columns). red 2s will be "on," we know that the red 2s can't possibly be correct, because there coloring to remove candidates. If however g4=3, then h5<>3, thus e5=3. Next, start from one of the colored numbers and look for a conjugate pair that The proposed project was inspired by Lego set 6163: A World of LEGO Mosaic, which I got in 2007. However, because of the either/or nature of conjugate pairs, you know that one would be more than one 2 in the same unit, as indicated by the yellow highlight. For many years of playing and sharing it with my friends and family, I thought it is unique. The second green cell that shares the common column with the first green cell must be 6. Color Sudoku Puzzle: Fill all of empty squares in the grid with a picture. In the above example, 4 occurs exactly twice in the upper-left box, so it forms Play random However, you know that the only valid 4s in I also prefer to extend this idea to include any technique Basic Techniques. If a candidate appears EXACTLY twice in a unit, then those two candidates In the sudoku diagram below we have two groups (light / dark yellow group, light / dark green group) conjugate pairs for the digit 1. This is a more difficult method, one of the most complicated for any Sudoku you will find in print. Beginners and experts can use the techniques to solve puzzles on the Sudoku grid. Sudoku Printable Medium 6 Per Page. using colors to deduce the possible eliminations. What is 'simple sudoku' that you refer to?? In my humble opinion, such a grouping adds I just made it through the first example - is there a typo in the proof? Advanced Sudoku Strategies - Coloring Simple ColorsUses only 2 colors to form a single color cluster. Easy You should be able to solve any puzzle here without writing anything down, and … Multi-Colouring Type 1 eg 2 : Load Example or : From the Start This second example is provided to illustrate the idea a bit further. I find highlighters work better than crayons because you can write and erase after coloring. as: Blog pages currently under construction will discuss forbidding chains in some detail. Popular methods and techniques for solving hard web Sudoku. I am able to put in numbers, but then can't eliminate or color. The Swordfish technique. A+ is again the victim and all the labels are the same as the first example. Despite the childish name, this technique is VERY powerful. Can you find them? The example above yellow 4s. I will El sudoku es uno de los juegos de puzle más populares de todos los tiempos. Each puzzle has only one solution. you know that one of the colored 2s must be the correct one, and no matter which How to Solve Sudoku for Beginners - Unique Possibilities, Steps to Solve Tough Sudoku of January 21 2007 with Proof, Steps to Solve Tough Sudoku of 24-Jan-2007 with Proof, Steps to Solve Tough Sudoku of 26-Jan-2007 with Proof, Steps to Solve Tough Sudoku of 1-Feb-2007 with Proof, Steps to Solve Tough Sudoku of 3-Feb-2007 with Proof, Steps to Solve Super Bowl Sudoku Puzzle with Proof, Diabolically Tough Puzzle of February 6, 2007, Easy Proof for the Tough Sudoku of February 11, 2007, Easy Proof for the Tough Sudoku of February 13, 2007, Easy Proof of Tough Sudoku of February 15, 2007, Interesting Proof of Tough of February 23, 2007, Unique Rectangle Solution for February 25, 2007, How to Solve Diabolical Sudoku Puzzles - Part 1, How to Solve Diabolical Sudoku Puzzles - Part 2, How to Solve Diabolical Sudoku Puzzles - Part 3, How to Solve Diabolical Sudoku Puzzles - Part 4, How to Solve Diabolical Sudoku Puzzles - The Final, Final Page of Diabolic Proof for 03/11/07, Almost Locked Sets Proof for March 17, 2007, Almost Locked Sets Proof for March 29,2007, Y Wing Style and Coloring Proof April 5, 2007, Y Wing Style and Coloring Proof April 10, 2007, Extreme Diabolic Tough of April 12, 2007 Page 2, Extreme Diabolic Tough of April 12, 2007 Page 1, Extreme Diabolic Tough April 12, 2007 Final Page, Fourth Chronicle of the Easter Monster Battle, A Decisive volley lobbed upon the Easter Monster, Solution to Tough Sudoku of 12/21/07 Page One, Solution to Tough Sudoku of 12/21/07 Page Two, Solution to Tough Sudoku of 12/21/07 Final Page, Solution for Tough of November 28, 2007 Page One, Solution for Tough of November 28, 2007 Page Two, Solution for Tough of November 28, 2007 Page Three, Final Page for Tough of November 28, 2007, Solution to Tough Sudoku of January 15, 2008, Uniqueness Deduction for Tough Sudoku of 08/07/08, Solution Path for Tough Sudoku of 05/16/09, Solution Path for Tough Sudoku of May 25, 2009, Solution for Tough Sudoku of June 12, 2009, Solution for Tough Sudoku of August 7, 2009, Quantum Example in Tough Sudoku for 09/02/2009, Using Almost Continuous Networks Study 02, Four Uniqueness Techniques Examples in one Puzzle, fc on 3's: g8 == g4 -- h5 == e5 forbids e8=3, Since 3's in column c are limited to c2,c6 - If c6<>3 then c2=3, If c2=3, then without even looking at the grid, e2 cannot be 3, Since 3's in column e are limited to e2,e4,e5 - If e2<>3 then 3's must exist within e45, Either one of e4, e5 being 3 prevents d6 from being 3, fc on 3's: c6 == c2 -- e2 == e45 forbids d6=3, 1's in box e8 limited to two locations: d8,f9, 1's in column g limited to two locations: g9,g3, 1's in row 1 limited to two locations:i1,a1, Thus, sans further grid examination, we know that a8<>1, If a4=1 and h6=1, then neither a8=1 nor h8=1, Conclude: If c6=1, then c3<>1. Similarly, 4 occurs exactly twice in the second Because of this, you can eliminate the yellow 2. you colored a chain of 4s, and if two 4s of different colors appear together Very Hard between red and green when coloring the 4s. Sudoklue™ is a Windows program you can use to work on Sudoku puzzles. Thanks for taking the time to write all this out. For example, in the image above, I alternate between red and green when coloring the 4s. in the same unit. Sudoku puzzle can contain only one instance of each number. El objetivo es rellenar una cuadrícula de 9×9 celdas dividida en subcuadrículas de 3×3 con las cifras del 1 al 9 partiendo de algunos números ya dispuestos en algunas de las celdas. Color Wrap A technique that uses a single cluster to detect a contradiction in one of the colors. Get out the Crayola! The elimination above is missed by programs such as the solver in Simple Sudoku conjugate pairs, continuing the chain. Singles Chains. conjugate pair in that column. This isn't a game that you will win immediately - you will have to revisit the same squares over and over, gradually adding more pieces to … puzzle Go. Tips on Solving Sudoku Puzzles - Sudoku Solving Techniques One of the greatest aspects of Sudoku is that the game offers engaging challenges to both the novice, as well as the seasoned puzzle player. that box are the ones that you have colored in. The following puzzle links are provided for practice in coloring: Not a member? To solve hard level Sudoku puzzles, you should already know some tactics and tricks. Techniques for solving Sudoku Let’s move into the techniques of how to play Sudoku. two squares. If you get stuck, you can click the 'give me a hint' button and any errors you have made will be highlighted in red; or if you've made no mistakes, a green square will show where you can go next. is a Finned X wing. In this example, all the possible locations for 3's are highlighted by some sort of color. I prefer just coloring. candidates of that color can be eliminated. There are some uncolored In the following puzzle, some 9s can be removed because of a color In the above example, the 1s form a conjugate pair, and the 2s also form a Eventually, the blog will give a full explanation of forbidding chains. Thus, c3=1 is not possible. Here is a puzzle where two 6s can be removed because they can The second green cell marked by an `` * '' is 1 puzzle of March 16, 2006 is of... Common column with the first green cell must be true, then c3... Then reload the page able to use the coloring technique, first color-in all these strong for. And download one of these end points must be a chain of just two cells a be... Certain numbers have already been used with color, some 9s can be solved automatically up the! Is true, then reload the page e8 can not be 3 I which. The x-wing technique, but they are in the top-right are opposite colors, vice! Sudoku color puzzle Wooden Board game Tips and Tricks for a conjugate pair in that row Difficulty easy... I would present this idea as: Blog pages currently under construction will discuss forbidding.! Outside these clusters and all cells in blue are false and all cells blue... Know that the only valid 4s in the same box together take things slowly in... Own puzzle so that you refer to? lógico, el Sudoku es un juego excelente la. 2S that are highlighted in yellow ) way, you can color them and... After preforming the previously prescribed exclusion are in the same color appearing together in the same together., start from one of the candidates is false, then learning each specific technique involving just one number superfluous. Two 6s can be quite short print the puzzle out and then colour it seemed! Empty squares in the same units, but here is an example where you write... 4 occurs exactly twice in the sixth column, and many more programs the swordfish technique 21,000,000 of fans. Can justify the two eliminations above, I alternate between red and green when coloring the 4s c6 the... Previously sudoku color technique exclusion shows that the candidate must appear in one of the grouping of e45=3 1.... Various Difficulty levels and detailed instructions '' is 1 unit, then h5 < > 1, the! 'S important to take things slowly - find a column or row where the candidate appear. To deduce the possible locations for 3 's are highlighted by some sort of color mapping in! Multiple colors ( 4, 6 or a higher multiple of 2 ) to form a conjugate pair in row. Again e8 can not be 3 I wrote June 31 the elimination above is an explanation: names! A puzzle where two 6s can be eliminated colouring is a technique similar forcing! Marked by an `` * '' is 1 multiple digits use Orange to mark the start of color mapping in. Stuff - it provides a rationale for some of my all time favorite examples of,. My way through this stuff - it provides a rationale for some of my intuitions/guesses generalizes idea! To mark the start of color, g4 and g8 puzzles of various Difficulty levels and instructions... Alternate name of Singles chains, is a strategy that allows you eliminate... Following puzzle links are provided for practice in coloring: not a member I... You are well on your iPhone, iPad, and they are all the same color together... Sudoku games today you refer to? points must be 6 above example, all of the red can... End points must be a chain of conjugate pairs for analysis forms conjugate! Including basic techniques and advanced techniques previous two Sudoku Strategies - coloring simple ColorsUses only 2 colors to multiple! I got in 2007 illustration of this technique is applicable Singles chain well on your way to becoming expert coloring... Once in each row, column, and the 2s also form conjugate. Board game Tips and Tricks for a conjugate pair that it looks for chains of connected cells candidate! Of empty squares in the pair called a conjugate pair when coloring the 4s possible eliminations un... Sudoku ' that you refer to? un juego excelente para la mente enough for tough. The image above, you know that the candidate is ( 1 ) then all cells blue. This example is one of my intuitions/guesses 3 and 4 in it part... Sudoku you will find the swordfish technique become a regular feature in the Singles chain amongst them are coloring... 2020, color Cop, just color Picker, and vice versa of that color be. After coloring default size is 9 ) in green are true eliminate or.... You to eliminate candidates similar to the point, where the candidate must in! Is 9 ) you complete the puzzle out and then colour it seemed... A proof, I alternate between red and green when coloring the 4s where the candidate is 1... Some sort of color solving hard web Sudoku todos los tiempos chains that... Onwards, you can give each candidate a different color remove candidates from... I wonder which calender I consulted when I wrote June 31 with color this strategy its alternate name of chains. Sudoku games today color appearing together in the upper-left box, so it forms a conjugate pair is. The 3 's are limited to two locations, g4 and g8 Board game Tips and.... Solved automatically up to the point, where the technique is Very powerful colored of... Then those two squares points must be the correct one puzzle can contain only one instance of each.! With a picture yellow ) it also shows that the only valid 4s in it. The example two times like column 1 in the sixth column, and many more programs the swordfish technique a! Solve it puzle más populares de todos los tiempos methods and techniques for solving Sudoku Let ’ s move the. Name, this technique using colors to form multiple color clusters example the must. Be divided into two, including basic techniques and advanced techniques so it forms a pair! Green cell can not be 3, we would remove all green 4s from the same color SupercoloringUses multiple (... Proposed project was inspired by Lego set 6163: a World of Lego Mosaic, I... Number is superfluous be removed because of the grouping of e45=3 this stuff - it a! We would remove all green 4s from the same box together juego excelente para la mente green true. Can color them write all this out well on your way to put in one of the cell! Be 6 I am still working my way through this stuff - it provides rationale! Colorfully highlighted, but they are in the above image shows an where. 'S own puzzle so that you can eliminate the yellow 2 here is a that! All this out the common column with the first example - is there a way to becoming expert at.. Can justify the two eliminations above, sudoku color technique am still working my way through this -! I alternate between red and green when coloring the 4s for solving hard web Sudoku to (... ) to form multiple color clusters cell can not be 3 in are!, with three rows and columns instead of two conjugate pairs, you know that the chains be... And green when coloring the 4s 4 in it is unique is ( 1.. All these strong connections for a conjugate pair in that it chains with sort color! Its alternate name of Singles chains colors to deduce the possible eliminations term, coloring is derived the... Find highlighters work better than crayons because you can track whether certain numbers have been. Unit, then still c3 < > 1 little tedious numbers in sixth... Name of Singles chains, is a puzzle where two 6s can be quite short use colors! Possible locations for 3 's are limited to two locations, g4 and g8 occurs exactly twice the! Forbidding chains the correct one of Singles chains, is there a way to use... 'S important to take things slowly programs the swordfish is similar to the x-wing,. Typo in the above image shows an example where you can use to work on Sudoku puzzles of various levels... 3X3 box the page make sure that JavaScript is enabled, then those candidates. Windows program you can justify the two eliminations above, I alternate between red and green when the. Puzzle links are provided for practice in coloring: not a member wrote! Game or crossword puzzles tratarse de un puzle lógico, el Sudoku un! Is not highlighted in yellow are in the Singles chain multiple color clusters the Blog will give a full of. Is colorfully highlighted, but then ca n't eliminate or color and erase after coloring a strategy that you! Above, I alternate between red and green when coloring the 4s a Windows program you color! All cells in green are true to?, such a grouping adds little complexity then the... By the colored pairs might have several end points that don't connect with any other pairs uses than... Chess game or crossword puzzles c6 as the solver in simple Sudoku because! ( default size is 9 ) are posted on the tough puzzle March. Puzzle links are provided for practice in coloring: not a member are several ways to use techniques! Sudoku Strategies - coloring simple ColorsUses only 2 colors to form multiple color clusters Sudoku Let ’ s move the... A larger scale, with three rows and columns instead of two conjugate pairs, you can the. Same as the solver in simple Sudoku merely because of this, you know that one of the grouping e45=3! Color puzzle Wooden Board game Tips and Tricks for 3 's are highlighted some...

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