L2 - Wings: examples and exemplar {2 digit - 3 strong links}
Dec 27, 2014 · an L2 wing is constructed using grouped or none grouped candidates from 2 digits containing a minimal of three strong-links. a generalized L2-wing is possible expansion removes the three strong-link restraint through the weak-link via additional strong-links on one candidate. if these are used the designation gL- Wing is warranted.
Sashimi XWing : Help with puzzles and solving techniques - Enjoy …
Nov 2, 2018 · Added: One more thing. I personally think any variant of X-Wing is much easier to see as a chain instead of a fish. For example, this Finned Sashimi X-Wing is a Grouped Skyscraper (or simply a grouped X-Chain) which proves that either r1c9=8 or r4c78=8 (or both); thus we can eliminate 8 from any cells both end nodes see, i.e. r56c9.
Local - Wing : Advanced solving techniques
May 10, 2018 · {Local wing} L-WING x=(x-y)=(y-z)=z z may be eliminated from the beginning cell and x can be eliminated from the ending cell. aka L3- wing i will note it has 100% overlap with hybrid wings: however both names have been out for a number of years and I wont dispute either claims to first, this post is here mostly for posterity on the move set.
Named chains: "Wings & Rings" structure for I'ding in code.
Feb 6, 2024 · VLLVL (Dual W Wing): a=b - b = b - b=a - a=a => -a (common peers) c s s s c s s added these to complete the Inversion we started years ago after stopping at the iW wing.
Inverted W-Wing - : Advanced solving techniques - Enjoy Sudoku
Dec 18, 2017 · thanks. to Norm for mentioning and finding this short chain network. and for Danny for providing me with the shortened notation. and most importantly to Leren for actually showing examples I used to test my code. iW-Wing: (X)s = (X-Y)a = (Y)b - (Y)c = (Y-X)d = (X)t. three types of these: Grouped or non-grouped on nodes (S,b,c,T} and combination.
Fin Transport/ Irregular "xy-Wings" aka Kraken fish : Advanced …
Feb 27, 2017 · -z repesents excluded candidates via xy-wing -Z,-X,-Y repesents excluded candidates * represtns excluded "z" candidate via xy-wing, Updated: A way to identify these: {this works for every N size "wing" } build your wing identify the extra "z" candidate pick a "Target" Sector that has no candidate "z" from the wing
Hybrid - Wings {work in progress} : Advanced solving techniques
Oct 23, 2017 · This technique is not my own, some of it was documented by udosuk, danny, ronk, and my self however udosuk ...
Technique Hardness vs Technique Count : Help with puzzles and …
Sep 29, 2011 · As an example (I don't know if either puzzle type is possible, but ignore that for a moment); take two puzzles that can be solved by Hidden Singles apart from: One needs a single XY Wing, the other needs n (let's say 12) consequative Pointing eliminations.
XYZ-Ring : Advanced solving techniques - Enjoy Sudoku
Nov 9, 2023 · of this technique is an XYZ-Wing with an additional Z strong chain, which causes Z to appear at most once within XYZ-Wing, resulting in a Rank=0 structure. If the Z in the overall structure can be completely covered by two houses, it is called Complete XYZ-Ring. Otherwise, it is called Half XYZ-Ring. It is obvious that Complete XYZ-Ring
A revival of Broken Wings : Advanced solving techniques - Enjoy …
Jan 17, 2007 · You can assume one of the cells outside the group sharing a row with the group is true; you can do the same for columns; or you can assume one of the candidates outside the fish group breaking the odd loop of conjugates is true. The last seems to be the most efficient way for these (often the only way).