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Jump to navigationJump to search- 18:32, 20 July 2025 diff hist +2,001 N Sue de Coq Created page with "The '''Sue de Coq''' technique uses two intersecting sets '''A''' and '''B''', where '''A''' is a set of N cells with N candidates in a line, '''B''' is a set..." current
- 18:31, 20 July 2025 diff hist +476 N Almost ALS Created page with "An almost ALS, or AALS is an ALS one step further. An AALS has N cells with N+2 candidates between them. The simplest of AALS's is one trivalue cell. The most obvious thing..." current
- 18:29, 20 July 2025 diff hist +1,062 N Almost locked set Created page with "An '''Almost Locked Set''' is a group of '''N''' cells in a single house with candidates for '''N+1''' digits. In other words, it is one cell short from being..." current
- 18:28, 20 July 2025 diff hist +1,414 N Naked subset Created page with "A '''Naked Subset''' is formed by '''N''' cells in a house with candidates for exactly '''N''' digits. '''N''' is the size of the subset, which must lie betwe..." current
- 18:27, 20 July 2025 diff hist 0 N File:WXYZWing.png current
- 18:26, 20 July 2025 diff hist +3,216 N WXYZ-Wing Created page with "The '''WXYZ-Wing''' is an extension of the XYZ-Wing, and is sometimes called '''XYZW-Wing'''. Seeing the extension of XYZ-Wing to WXYZ-Wing, one can further extend the t..." current
- 18:26, 20 July 2025 diff hist +1,645 N XYZ-Wing Created page with "The '''XYZ-Wing''' is an extension of the XY-Wing. The pivot cell also carries the '''Z''' candidate. Up to 2 candidates can be eliminated by an XYZ-Wing, bec..." current
- 18:25, 20 July 2025 diff hist +138 N Pincer Created page with "A '''pincer''' is a cell at the start or end of an XY-Chain, XY-Wing or XYZ-Wing. Each of these chains have 2 pincers." current
- 18:23, 20 July 2025 diff hist +6,824 N Oriented 3D chains Created page with "'''ORIENTED 3D‑CHAINS: NRC‑, NRCT‑, NRCZ‑ AND NRCZT‑ CHAINS''' <br /> === 1) NRC‑LINKS and GENERAL 3D‑CHAINS === The basic notion underlying all the 3D‑chain..." current
- 18:21, 20 July 2025 diff hist -4 Oriented Chains current
- 18:20, 20 July 2025 diff hist +655 N Oriented Chains Created page with "'''Oriented chains''' are generalisations of the basic xy‑chains. The central idea is that the information collected from previous candidates in a chain (and/o..."
- 18:17, 20 July 2025 diff hist +2,236 N Solving path Created page with "A '''solving path''' or '''walkthrough''' is a list of steps that shows how a particular puzzle is solved. Depending on the writer and the intended audience, some basic sol..." current
- 18:16, 20 July 2025 diff hist 0 N File:RemotePairExample.png current
- 18:15, 20 July 2025 diff hist +2,355 N Remote Pairs Created page with "The '''Remote Pairs''' technique uses a XY-Chain involving an even number of bivalue cells, and all the cells have the same two digits as their candidate..." current
- 15:49, 20 July 2025 diff hist +186 N Solved cell Created page with "A cell in the puzzle whose digit value is known through having been derived by the solver, as opposed to being provided as a given clue by the puz..." current
- 15:46, 20 July 2025 diff hist 0 N File:Avoidabler201.png current
- 15:46, 20 July 2025 diff hist 0 N File:Avoidabler101.png current
- 15:45, 20 July 2025 diff hist +5,952 N Avoidable Rectangle Created page with "An '''Unavoidable Rectangle''' is a 4-cell deadly pattern in a Sudoku solution; for example: xy . . | yx . . | . . . yx . . | xy . . | . ...." current
- 15:44, 20 July 2025 diff hist +28 N Deadly pattern Redirected page to Deadly Pattern current Tag: New redirect
- 15:42, 20 July 2025 diff hist +2,933 N Supercoloring Created page with "'''Supercoloring''' is the precursor to Multi-Colors, which eventually evolved into Ultracoloring and 3D Medusa. This advanced solving technique was originally..." current
- 15:40, 20 July 2025 diff hist +363 N Candidate elimination cell Created page with "'''Candidate elimination cell''' ('''CEC''') is a cell that contains a candidate capable of causing a contradiction in a ([[Fish|fish]..." current
- 15:37, 20 July 2025 diff hist 0 N File:Kraken x-wing.png current
- 15:37, 20 July 2025 diff hist +3,693 N Kraken Fish Created page with "A '''Kraken Fish''' is a fish pattern which is connected to a candidate elimination cell (CEC) in such a way that placing this candidate would reduce the sec..." current
- 15:35, 20 July 2025 diff hist -12 Mutant Jellyfish →See Also current
- 15:35, 20 July 2025 diff hist 0 N File:Mutant jellyfish rrrc-ccbb.png current
- 15:34, 20 July 2025 diff hist +830 N Mutant Jellyfish Created page with "A '''Mutant Jellyfish''' is a Mutant Fish of size 4. Due to the complexity and the high risk of degeneration when only a few vertices are missing, this fish patter..."
- 15:33, 20 July 2025 diff hist 0 N File:Mutant swordfish rbc.png current
- 15:33, 20 July 2025 diff hist +856 N Mutant Swordfish Created page with "A '''Mutant Swordfish''' is a Mutant Fish of size 3. Here is an example: Image:mutant swordfish.png All the candidates in rows 1 and 9 and column 7 (the..." current
- 15:32, 20 July 2025 diff hist 0 N File:Mutant swordfish.png current
- 15:31, 20 July 2025 diff hist +3,104 N Mutant Fish Created page with "When fish are no longer restricted to rows and columns, strange varieties emerge. When either the defining set or the secondary set contains a mixture of r..." current
- 15:29, 20 July 2025 diff hist +65 N Category:Single-Digit Created page with "This page has links to other Single-digit solving techniques." current
- 15:28, 20 July 2025 diff hist +3,039 N Claiming Created page with "A solving technique that uses the intersections between lines and boxes. Aliases include: '''Intersection Removal''', '''Line-Box Interaction'''. The terms ''..." current
- 15:27, 20 July 2025 diff hist +996 N Franken Fish Created page with "A '''Franken Fish''' is a fish pattern where one or more lines in the defining set or the secondary set has been replaced by an equal number of boxes. The..." current
- 15:26, 20 July 2025 diff hist -12 Squirmbag current
- 15:26, 20 July 2025 diff hist +968 N Squirmbag Created page with "A '''Squirmbag''' is a fish with 5 rows and 5 columns. ; Squirmbag in the rows : When all candidates for a particular digit in 5 rows are located in only..."
- 15:23, 20 July 2025 diff hist -13 Almost Locked Candidates current
- 15:22, 20 July 2025 diff hist +2,209 N Almost Locked Candidates Created page with "{{develop}} The '''Almost Locked Candidates''', or '''ALC''', technique refers to a line-box intersection and a set of digits '''S''' such that: * An Almost..."
- 15:21, 20 July 2025 diff hist +466 N Locked Triple Created page with "A '''Locked Triple''' is a Naked Triple where all 3 cells are locked in a single intersection. Because the intersection is part of 2 houses, the Locked Triple..." current
- 14:49, 19 July 2025 diff hist -228 Main Page current
- 04:25, 19 July 2025 diff hist +15,224 Mathematics of Sudoku current
- 04:20, 19 July 2025 diff hist 0 N File:Gurth-example.png current
- 04:19, 19 July 2025 diff hist +2,632 N Gurth's Symmetrical Placement Created page with "'''Gurth's Symmetrical Placement''' is a technique for solving Sudoku puzzles with 180-degree rotational symmetry in the givens, i.e., the cell '''r[i]c[j]''' cont..." current
- 04:17, 19 July 2025 diff hist +780 N Category:Uniqueness Created page with "The '''Uniqueness''' issue is controversial. The question is whether or not the solver may assume that the Sudoku has a unique solution. There are several solving te..." current
- 04:17, 19 July 2025 diff hist +560 N Unavoidable set Created page with "An '''unavoidable set''' is a Deadly Pattern from the point of view of a puzzle maker, or somebody who likes to investigate solution grids. Take the following exa..." current
- 04:16, 19 July 2025 diff hist +777 N Reverse BUG Lite Created page with "The '''Reverse BUG Lite''' is a generalization of the Reverse BUG solving technique. It can be stated as follows: : In solving a sudoku with a Uniqueness Controv..." current
- 04:15, 19 July 2025 diff hist +2,499 N Reverse BUG Created page with "In a 9 by 9 sudoku, a '''Reverse BUG''' is a state of the grid where every solved cell of two particular digits form an unavoidable set of less than 18 cel..." current
- 03:32, 21 December 2024 diff hist +83 Solving Technique current
- 15:04, 5 July 2023 diff hist +117 Main Page
- 17:36, 18 May 2023 diff hist -12 Main Page
- 02:28, 19 December 2022 diff hist -235 Sudoku Websites current
