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Sudoku X-Wing Identification And Solution
www.sudokuessentials.com
Sudoku X-Wing can solve some of your most difficult Sudoku puzzles. This illustrative article will help you become a puzzle pro.
X-Wing Strategy - SudokuWiki.org
www.sudokuwiki.org
This strategy is looking at single numbers in rows and columns. It should be easier to spot in a game as we can concentrate on just one number ...
X Wing - Learn Sudoku
www.learn-sudoku.com
An X Wing is a technique for removing candidates (pencil marks). It starts with either two parallel rows or two parallel columns.
X-Wings – Sudoku of the Day
www.sudokuoftheday.com
Solving Sudoku : X-Wings ... X-Wings are fairly easy to spot, but a little harder to understand than some other techniques. Like others it relies on using ...
X Wing - Sudoku Beginner
www.sudokubeginner.com
X Wing is an advanced sudoku technique, which means that the end result will not necessarily be finding the number that goes in a cell.
Sudoku X-Wing technique: when and how to use
www.sudokuonline.io
Requirements to apply the Sudoku X-Wing strategy ... To be able to apply this technique, the player must find 2 rows or 2 columns where a single digit is a ...
Basic Fish (X-Wing, Swordfish, Jellyfish) - HoDoKu
hodoku.sourceforge.net
X-Wing ... Take two rows (the base sets). If you can find two columns, such that all candidates of a specific digit (the fish digit) in both rows are containd in ...
Sudoku X Wing Technique with Examples
sudoku.com.au
If nothing else, Sudoku solvers have imagination when they name techniques! This idea is completely analogous, logically, to pairs, triplets, etc. Forbidding ...
X-Wing Strategy - Sudoku - Thonky.com
www.thonky.com
X-Wing is a strategy in which you find a candidate that appears twice in two different rows, and those appearances are both in the same ...
X-Wing - Sudoku Solving Techniques
sudoku9x9.com
X-Wing ... 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 ...
I Need Practice with X-Wing and Swordfish
forum.enjoysudoku.com
While I understand the theory behind x-wing/swordfish, I am having ... and have to resort to the Sudoku Solver to show me where it is (maybe ...
Sudoku Solving Tip - X Wing Technique - Pinterest
www.pinterest.com
X-Wing Strategy. Sudoku Strategy. X-Wings are the simplest of the chaining formations and are very easy to spot. They use four cells in a rectangle to make ...
Sudoku Solving Techniques - Kristanix Games
www.kristanix.com
Tips on Solving Sudoku Puzzles - Sudoku Solving Techniques ... X-Wing. This method can work when you look at cells comprising a rectangle, such as the cells ...
Sudoku Solutions, Advanced- X-wing, XY-Wing, Swordfish
www.puzzles-on-line-niche.com
mentioned solution types. X-Wing. To solve Sudoku puzzles using this process, one must have recognition of number relationships.
Sudoku Solving Techniques
www.sudoku.org.uk
Y-Wing Strategy. This is an excellent candidate eliminator (and is also known as XY-Wing). The name derives from the fact that it looks like an X-Wing - but ...
Sudoku Assistant -- Solving Techniques - St. Olaf College
www.stolaf.edu
Other advanced techniques are required to solve more difficult Sudoku puzzles ... (An X-wing is really a naked pair; a swordfish is a naked triple, etc.) ...
Sudoku Puzzles by using x-wing techniques
oaji.net
Finally the parts found to be most important for an efficient solver are combined, creating an even better solve. Sudoku puzzles involve a lot of mathematics.
raphael-kahler/SudokuSolver: Apply common sudoku solving ...
github.com
Apply common sudoku solving techniques to find the next step in a sudoku. ... 2-Fish: X-Wing, Finned X-Wing, Sashimi X-Wing, Technique.Fish.XWing().
Solving Technique - Finned X Wings - Sudoku Snake
www.sudokusnake.com
A Finned X-Wing is a pattern that is one cell short of being an X-Wing - in other words, two columns that contain a candidate in only two rows, ...
Sudoku Solutions - Solver And Helper | Play Thousands Of ...
www.sudoku-solutions.com
Helps you to improve your solving skills and practice solving strategies. ... About this Sudoku Solver ... XWing, Swordfish, Jellyfish, XYWing, XYZWing.
Solving Sudoku - Angus Johnson
www.angusj.com
Rules and hints for solving Sudoku puzzles. ... The cells marked with a blue highlight form an "X-Wing" since rows one and nine both have only two cells ...
Finned X Wing and Finned Fishy Things - Sudoku Helper
sudoku.ironmonger.com
Sudoku Helper - HowTo for Sudoku solving technique fishyThingsWithFins. Instructions and examples for the Sudoku solving technique fishyThingsWithFins.
Sudoku techniques - Conceptis Puzzles
www.conceptispuzzles.com
The X-Wing technique is used in rare situations which occur in some extremely difficult puzzles. Scanning column a we see that 4 can only be in square a2 or ...
Advanced Sudoku Solving Techniques and Tips - Godoku
godoku.com
The x-wing technique ... Essentially, this method uses the fact that in certain cases, there are only two possible ways of placing two numbers in four squares ...
How should I understand Sudoku skill Fish? - Quora
www.quora.com
But before that let me explain x-wing which is a basic version of swordfish. ... The obvious way to solve a sudoku puzzle is to find the right numbers to go ...
Skyscraper X-Chain Sudoku Solving Techniques
sudokuswami.com
Looks like an “offset” X-Wing, or a crooked letter U. 11 July 2019 4:43 AM. About Sudoku Swami.
X-Wing: Advanced Solving Sudoku Technique
www.createclassicsudoku.com
Solve Sudoku: X-Wing. If in two rows all candidates of a certain digit are confined to two same columns, for these two columns this digit ...
Help | Glossary - PennyDell SudokuSolver
www.pennydellsudokusolver.com
One of the nine 3x3 sections that make up a Sudoku grid. ... X-Wing. A deductive solving technique that takes into account the interaction between two ...
Kraken Fish - Solving sudoku strategy
www.sudoku9981.com
It has 2 CECs. Kraken Fish , How to solve sudoku puzzles - Solving sudoku strategy. There is a potential X-Wing in columns 2 & 5 and rows 2 ...
Mensa® Guide to Solving Sudoku: Hundreds of Puzzles Plus ...
www.amazon.com
Mensa® Guide to Solving Sudoku: Hundreds of Puzzles Plus Techniques to Help ... It teaches you how to cull numbers and explains techniques such as x wing, ...
Stuck at Sudoku? Here Are A Few Strategies To Get You ...
www.shawanoleader.com
X-Wing is a pattern spanning multiple columns and rows claiming the candidates ... The ones above are basic to advanced level Sudoku solving ...
JSudoku - Fishes & Single Digit Techniques
jcbonsai.free.fr
The simplest pattern is the X-Wing where 2 rows and 2 columns are involved. In this example, R2 and R8 forms ... This solver is extended for Killer Sudoku ...
Basic & advanced Sudoku elimination techniques to solve ...
humage.com
Learn about solving Sudoku puzzles with various important techniques, such as X-Wing and Swordfish, all illustrated with clear pictures and detailed ...
XY Wing aka Y Wing Sudoku Ultimate Technique
www.livesudoku.com
These 2 candidates are called X and Y. In our sample - R5C5 is the pivot, X=6 and Y=9. Sudoku XY ...
Sudoku Solving Guide - SudoCue
www.sudocue.net
When you check the pattern for a digit, you may spot a set of locked candidates, alongside an X-Wing. Chances are slim that you stumble upon ...
How-to-Solve-Sudoku.pdf - Penny Dell Puzzles
www.pennydellpuzzles.com
To solve a regular Sudoku puzzle, place a number into each cell of the diagram so that each row ... An X-Wing takes into account the interaction between.
Sudoku - X-Wing - Decabit Software
www.decabit.com
Sudoku Solver. |. Techniques. X-Wing If two rows have a candidate in exactly two cells that lie on the same two columns, then the candidate can be ...
Sudoku Solver
xwingsudoku.com
Loading... An unhandled error has occurred. Reload.
Glossary of Sudoku - Wikipedia
en.wikipedia.org
All other candidates for that digit in those columns (rows) can then be excluded. Names for various N-fish: 2-fish: X-wing; 3- ...
Sudoku X-Wing Identification And Solution
www.sudokuessentials.com
Sudoku X-Wing can solve some of your most difficult Sudoku puzzles. This illustrative article will help you become a puzzle pro.
X-Wing Strategy - SudokuWiki.org
www.sudokuwiki.org
This strategy is looking at single numbers in rows and columns. It should be easier to spot in a game as we can concentrate on just one number ...
X Wing - Learn Sudoku
www.learn-sudoku.com
An X Wing is a technique for removing candidates (pencil marks). It starts with either two parallel rows or two parallel columns.
X-Wings – Sudoku of the Day
www.sudokuoftheday.com
Solving Sudoku : X-Wings ... X-Wings are fairly easy to spot, but a little harder to understand than some other techniques. Like others it relies on using ...
X Wing - Sudoku Beginner
www.sudokubeginner.com
X Wing is an advanced sudoku technique, which means that the end result will not necessarily be finding the number that goes in a cell.
Sudoku X-Wing technique: when and how to use
www.sudokuonline.io
Requirements to apply the Sudoku X-Wing strategy ... To be able to apply this technique, the player must find 2 rows or 2 columns where a single digit is a ...
Basic Fish (X-Wing, Swordfish, Jellyfish) - HoDoKu
hodoku.sourceforge.net
X-Wing ... Take two rows (the base sets). If you can find two columns, such that all candidates of a specific digit (the fish digit) in both rows are containd in ...
Sudoku X Wing Technique with Examples
sudoku.com.au
If nothing else, Sudoku solvers have imagination when they name techniques! This idea is completely analogous, logically, to pairs, triplets, etc. Forbidding ...
X-Wing Strategy - Sudoku - Thonky.com
www.thonky.com
X-Wing is a strategy in which you find a candidate that appears twice in two different rows, and those appearances are both in the same ...
X-Wing - Sudoku Solving Techniques
sudoku9x9.com
X-Wing ... 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 ...
I Need Practice with X-Wing and Swordfish
forum.enjoysudoku.com
While I understand the theory behind x-wing/swordfish, I am having ... and have to resort to the Sudoku Solver to show me where it is (maybe ...
Sudoku Solving Tip - X Wing Technique - Pinterest
www.pinterest.com
X-Wing Strategy. Sudoku Strategy. X-Wings are the simplest of the chaining formations and are very easy to spot. They use four cells in a rectangle to make ...
Sudoku Solving Techniques - Kristanix Games
www.kristanix.com
Tips on Solving Sudoku Puzzles - Sudoku Solving Techniques ... X-Wing. This method can work when you look at cells comprising a rectangle, such as the cells ...
Sudoku Solutions, Advanced- X-wing, XY-Wing, Swordfish
www.puzzles-on-line-niche.com
mentioned solution types. X-Wing. To solve Sudoku puzzles using this process, one must have recognition of number relationships.
Sudoku Solving Techniques
www.sudoku.org.uk
Y-Wing Strategy. This is an excellent candidate eliminator (and is also known as XY-Wing). The name derives from the fact that it looks like an X-Wing - but ...
Sudoku Assistant -- Solving Techniques - St. Olaf College
www.stolaf.edu
Other advanced techniques are required to solve more difficult Sudoku puzzles ... (An X-wing is really a naked pair; a swordfish is a naked triple, etc.) ...
Sudoku Puzzles by using x-wing techniques
oaji.net
Finally the parts found to be most important for an efficient solver are combined, creating an even better solve. Sudoku puzzles involve a lot of mathematics.
raphael-kahler/SudokuSolver: Apply common sudoku solving ...
github.com
Apply common sudoku solving techniques to find the next step in a sudoku. ... 2-Fish: X-Wing, Finned X-Wing, Sashimi X-Wing, Technique.Fish.XWing().
Solving Technique - Finned X Wings - Sudoku Snake
www.sudokusnake.com
A Finned X-Wing is a pattern that is one cell short of being an X-Wing - in other words, two columns that contain a candidate in only two rows, ...
Sudoku Solutions - Solver And Helper | Play Thousands Of ...
www.sudoku-solutions.com
Helps you to improve your solving skills and practice solving strategies. ... About this Sudoku Solver ... XWing, Swordfish, Jellyfish, XYWing, XYZWing.
Solving Sudoku - Angus Johnson
www.angusj.com
Rules and hints for solving Sudoku puzzles. ... The cells marked with a blue highlight form an "X-Wing" since rows one and nine both have only two cells ...
Finned X Wing and Finned Fishy Things - Sudoku Helper
sudoku.ironmonger.com
Sudoku Helper - HowTo for Sudoku solving technique fishyThingsWithFins. Instructions and examples for the Sudoku solving technique fishyThingsWithFins.
Sudoku techniques - Conceptis Puzzles
www.conceptispuzzles.com
The X-Wing technique is used in rare situations which occur in some extremely difficult puzzles. Scanning column a we see that 4 can only be in square a2 or ...
Advanced Sudoku Solving Techniques and Tips - Godoku
godoku.com
The x-wing technique ... Essentially, this method uses the fact that in certain cases, there are only two possible ways of placing two numbers in four squares ...
How should I understand Sudoku skill Fish? - Quora
www.quora.com
But before that let me explain x-wing which is a basic version of swordfish. ... The obvious way to solve a sudoku puzzle is to find the right numbers to go ...
Skyscraper X-Chain Sudoku Solving Techniques
sudokuswami.com
Looks like an “offset” X-Wing, or a crooked letter U. 11 July 2019 4:43 AM. About Sudoku Swami.
X-Wing: Advanced Solving Sudoku Technique
www.createclassicsudoku.com
Solve Sudoku: X-Wing. If in two rows all candidates of a certain digit are confined to two same columns, for these two columns this digit ...
Help | Glossary - PennyDell SudokuSolver
www.pennydellsudokusolver.com
One of the nine 3x3 sections that make up a Sudoku grid. ... X-Wing. A deductive solving technique that takes into account the interaction between two ...
Kraken Fish - Solving sudoku strategy
www.sudoku9981.com
It has 2 CECs. Kraken Fish , How to solve sudoku puzzles - Solving sudoku strategy. There is a potential X-Wing in columns 2 & 5 and rows 2 ...
Mensa® Guide to Solving Sudoku: Hundreds of Puzzles Plus ...
www.amazon.com
Mensa® Guide to Solving Sudoku: Hundreds of Puzzles Plus Techniques to Help ... It teaches you how to cull numbers and explains techniques such as x wing, ...
Stuck at Sudoku? Here Are A Few Strategies To Get You ...
www.shawanoleader.com
X-Wing is a pattern spanning multiple columns and rows claiming the candidates ... The ones above are basic to advanced level Sudoku solving ...
JSudoku - Fishes & Single Digit Techniques
jcbonsai.free.fr
The simplest pattern is the X-Wing where 2 rows and 2 columns are involved. In this example, R2 and R8 forms ... This solver is extended for Killer Sudoku ...
Basic & advanced Sudoku elimination techniques to solve ...
humage.com
Learn about solving Sudoku puzzles with various important techniques, such as X-Wing and Swordfish, all illustrated with clear pictures and detailed ...
XY Wing aka Y Wing Sudoku Ultimate Technique
www.livesudoku.com
These 2 candidates are called X and Y. In our sample - R5C5 is the pivot, X=6 and Y=9. Sudoku XY ...
Sudoku Solving Guide - SudoCue
www.sudocue.net
When you check the pattern for a digit, you may spot a set of locked candidates, alongside an X-Wing. Chances are slim that you stumble upon ...
How-to-Solve-Sudoku.pdf - Penny Dell Puzzles
www.pennydellpuzzles.com
To solve a regular Sudoku puzzle, place a number into each cell of the diagram so that each row ... An X-Wing takes into account the interaction between.
Sudoku - X-Wing - Decabit Software
www.decabit.com
Sudoku Solver. |. Techniques. X-Wing If two rows have a candidate in exactly two cells that lie on the same two columns, then the candidate can be ...
Sudoku Solver
xwingsudoku.com
Loading... An unhandled error has occurred. Reload.
Glossary of Sudoku - Wikipedia
en.wikipedia.org
All other candidates for that digit in those columns (rows) can then be excluded. Names for various N-fish: 2-fish: X-wing; 3- ...
X-Wing Strategy - SudokuWiki.org
www.sudokuwiki.org
Sudoku Strategy. X-Wings are the simplest of the chaining formations and are very easy to spot. They use four cells in a rectangle to make ...
X Wing - Learn Sudoku
www.learn-sudoku.com
An X Wing is a technique for removing candidates (pencil marks). It starts with either two parallel rows or two parallel columns.
Sudoku X-Wing technique: when and how to use
www.sudokuonline.io
Requirements to apply the Sudoku X-Wing strategy ... To be able to apply this technique, the player must find 2 rows or 2 columns where a single digit is a ...
Basic Fish (X-Wing, Swordfish, Jellyfish) - HoDoKu
hodoku.sourceforge.net
X-Wing ... Take two rows (the base sets). If you can find two columns, such that all candidates of a specific digit (the fish digit) in both rows are containd in ...
X-Wings – Sudoku of the Day
www.sudokuoftheday.com
Solving Sudoku : X-Wings ... X-Wings are fairly easy to spot, but a little harder to understand than some other techniques. Like others it relies on using ...
X Wing - Sudoku
www.livesudoku.com
X Wing Tutorial · X Wing · It happens to be that those 4 cells (2 in each row) align up perfectly in the same two columns - column 5 and column 7. · This is called ...
X Wing - Sudoku Beginner
www.sudokubeginner.com
X Wing is an advanced sudoku technique, which means that the end result will not necessarily be finding the number that goes in a cell.
Sudoku X Wing Technique with Examples
sudoku.com.au
Sudoku X Wing Technique with Examples · Consider any one candidate · Consider any two distinct rows · Let the candidate be limited to no more than two cells in ...
X-Wing Strategy - Sudoku - Thonky.com
www.thonky.com
X-Wing is a strategy in which you find a candidate that appears twice in two different rows, and those appearances are both in the same ...
X-Wing - Rätselagentur Simon
www.thinkgym.de
Am folgenden Beispiel möchten wir Ihnen eine Situation erläutern, in der wir die Sudokustrategie des X-Wing anwenden. Die schwarzen Zahlen sind die ursprünglich ...
Solving Technique - Finned X Wings - Sudoku Snake
www.sudokusnake.com
A Finned X-Wing is a pattern that is one cell short of being an X-Wing - in other words, two columns that contain a candidate in only two rows, ...
Sudoku Strategy. X-Wings are the simplest of the chaining ...
www.pinterest.co.uk
X-Wing Strategy. Sudoku Strategy. X-Wings are the simplest of the chaining formations and are very easy to spot. They use four cells in a rectangle to make ...
Sudoku Puzzles by using x-wing techniques
oaji.net
With many advanced techniques, the key is to spot patterns within your pencil marks to eliminate possibilities within other squares. The x-wing technique:.
Sudoku Solving Techniques
www.sudoku.org.uk
Y-Wing Strategy. This is an excellent candidate eliminator (and is also known as XY-Wing). The name derives from the fact that it looks like an X-Wing - but ...
X-Wing - Sudoku Solving Techniques
sudoku9x9.com
X-Wing ... 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 ...
Sudoku Help - X-Wing - BrainBashers
www.brainbashers.com
An X-Wing is a advanced technique which can eliminate certain candidates from squares. Its name comes from the pattern formed by the digits. We are looking for ...
Sudoku X Wing Practice - Advanced Sudoku Strategy Finned ...
jorjabartlett.blogspot.com
Sudoku Puzzles By Using X Wing Techniques Logic Teaching Mathematics from imgv2-1-f.scribdassets.com This strategy is looking at single numbers ...
Sudoku Solutions, Advanced- X-wing, XY-Wing, Swordfish
www.puzzles-on-line-niche.com
mentioned solution types. X-Wing. To solve Sudoku puzzles using this process, one must have recognition of number relationships.
X-Wing Sudoku Solving Techniques
sudokuswami.com
The X-wing pattern appears in tricky sudoku puzzles when two rows or columns contain just two cells that hold matching candidates.
Sudoku Sashimi Finned X-Wing Strategy explained
www.taupierbw.be
Sudoku strategies explained with graphics. ... Sashimi Finned X-Wing. If a particular candidate is present in only two Cells in a Row and if you can find ...
X-wing (Sudoku) - — Wikipédia
fr.wikipedia.org
La méthode X-Wing est une technique de résolution de Sudoku. Son nom provient des X-wing de Star Wars, le X fait référence à la disposition des cases ...
X-Wing - Solving sudoku strategy
www.sudoku9981.com
Introduce sudoku solving technique : An X-Wing is a fish pattern involving 2 rows and 2 columns.It is a single-digit solving technique that allows the ...
X Wing and Other Fishy Things - Sudoku Helper
sudoku.ironmonger.com
Sudoku Helper - HowTo for Sudoku solving technique fishyThings. ... The X Wing strategy looks for two rows that only have two instances of ...
This Sudoku Actually Teaches The X-Wing Technique!
iam.t-rkr.de
This Sudoku Actually Teaches The X-Wing Technique! Upload: 29 10 2020 10:07. Tags: sudoku. Source Gelöst in 59:49 ...
raphael-kahler/SudokuSolver: Apply common sudoku solving ...
github.com
Sudoku Solver. A solver for Sudoku puzzles that uses common solving techniques. The solver shows for every step which technique was used, so you can follow ...
Sudoku difference between x wing and double pair - Puzzling ...
puzzling.stackexchange.com
Double Pairs and X Wing are listed as different techniques here (former is a medium and later a master technique). The only difference I can see ...
Su Doku puzzle needing x Wing technique, can anyone help?
forum.enjoysudoku.com
I was recommended to use X Wing which I am totaly unfamiliar with. I looked at SadMan Software ... http://www.sadmansoftware.com/sudoku/.
Sudoku Puzzles 129 - Associated Pairs, X-Wing
www.sudoku129.com
Solving methods > 4- Complex methods > 4.1 Associated pairs (X.wing). The following methods are not necessarily more difficult to understand that the above ...
How to solve hard Sudoku puzzles
minimindgames.com
Here are the most common techniques to solve hard Sudokus. X-wing. X-wing. If a candidate appears in two columns (rows) in exactly ...
JSudoku - Fishes & Single Digit Techniques
jcbonsai.free.fr
This is a generalization of the X-Wing, Swordfish, Jellyfish which is more frequent is some variants like Diagonal Sudoku. It is based on strong links and uses ...
Sudoku Puzzles by using x-wing techniques - Academia.edu
www.academia.edu
International Journal of Computer TechniQues - Volume1 Sudoku Puzzles by using x-wing techniques Dr. Zubair Khan1, Ashish Kumar2, Sunny Kumar3 M.Tech ...
X-Wing - Sudoku technique
www.free-sudoku-puzzle.net
An X-Wing can also occur on 3 rows or columns instead of 2. This is called a SwordFish. Install Free-Sudoku-Puzzle as an app.
How to solve a Sudoku? - Telenet
users.telenet.be
5. X-Wing. When there are only two possible cells for a value in each of two different rows, and these candidates lie also in the same ...
Solving Sudoku - Angus Johnson
www.angusj.com
Rules and hints for solving Sudoku puzzles. ... The X-Wing and Swordfish techniques can be further generalised to include rows containing candidates ...
Sudoku Solving Techniques - Kristanix Games
www.kristanix.com
Tips on Solving Sudoku Puzzles - Sudoku Solving Techniques ... X-Wing. This method can work when you look at cells comprising a rectangle, such as the cells ...
Sudoku Assistant -- Solving Techniques - St. Olaf College
www.stolaf.edu
Other advanced techniques are required to solve more difficult Sudoku puzzles ... (An X-wing is really a naked pair; a swordfish is a naked triple, etc.) ...
Sudoku Strategy Tips, Tutorials and Videos
www.eadvancedsudoku.com
With step-by-step Sudoku strategy tips, tricks and video tutorials. ... The X Wing method is a way to help you solve very hard Sudoku puzzles!
Aftermath of October 31 meeting - UCI Math
www.math.uci.edu
A Practice Sudoku Puzzle (from "Enjoy Sudoku" LEARN X-Wing) (image1) ... A puzzle solvable using only basic techniques (Puzzle 71 in Chapter 7 of Gordon) ...
Sudoku techniques - Conceptis Puzzles
www.conceptispuzzles.com
The X-Wing technique is used in rare situations which occur in some extremely difficult puzzles. Scanning column a we see that 4 can only be in square a2 or ...
X Wing 数独Sudoku - 程序猿
www.wjhsh.net
An X Wing is a technique for removing candidates (pencil marks). It starts with either two parallel rows or two parallel columns. Blocks are not involved here.