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Tag Archives: ALS-wing
Softening left page ultrahardcore 353
Here is another puzzle the DIY oriented solvers suggest is too hard for human solving, even as the moves they find are too instructive to ignore. This post gets quickly to ALS methods that demand exhaustive enumeration from the DIY … Continue reading
UHC 89 Breaks Out from a Monster Basic
This post coordinates the two DIY solvers used in the ultrahardcore review, choosing and interpreting solver methods and ignoring some removals to match the Sysudoku DIY order of battle. A series of early moves breaks the ice for AIC building … Continue reading
Posted in Advanced Solving, Heine, Puzzle Reviews
Tagged ALS-wing, ALS_XZ, APE, basic traces, dfc boomer, i-way, ultrahardcore review
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Ultrahardcore Review ALS-wings V
This post completes a survey of ALS-wings in the review of Stefan Heine’s ultrahardcore collection. The study was to determine how ALS-wings can be constructed as ALS maps are built. This post covers five more examples in UHC 443 found … Continue reading
Ultrahardcore Review ALS-wings IV
The survey of ALS-wings in the ultrahardcore review continues, with new wing building situations, another ALS version of the Death Blossom, and an amazing ALS. In this UHC 267 ALS-wing it’s a two box ALS , connected by a column … Continue reading
Ultrahardcore Review ALS-wings III
This post’s examples from UHC 179 include ALS-wings with bv cells, and uncover two essential facts about ALS value groups. This post’s examples include ALS-wings with bv cells, and uncover two essential facts about ALS value groups. Instead of following … Continue reading
Posted in Advanced Solving, Expert Reviews
Tagged ALS node AIC, ALS value groups, ALS-wing, confirming ANL
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SASdC Unlock UHC 443 for Beeby
After the hidden unique rectangle hinted last week, a pair of Single Alternate Sue de Coq trials gets the review solver Beeby moving again. ALS-wings and a finned X-wing get us to a colorful finish. The hidden unique rectangle left … Continue reading
Beeby Softens Up ultrahardcore 443
This post reports a series of Beeby ALS-XZ featuring alignments in Z and X, almost to the point where a trial is needed. A simple basic trace means a hard start, with a crowded grid. Sudokuwiki’s 579-wing is a Beeby … Continue reading
Posted in Extreme Solving, Heine, Puzzle Reviews
Tagged ALS-wing, ALS_XZ, complex 1-way, dfc boomer, Stefan Heine, ultrahardcore review
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Lite Coloring Informs a UHC 399 Trial
In one post, the 10th ultrahardcore review puzzle is wrapped, but not without an introduction of something new in Systematic Sudoku. Ordinarily advanced steps begin in line marking, and lite coloring is introduced. In line marking Stefan Heine’s ultrahardcore 399, … Continue reading
Beeby on Heine’s ultrahardcore 3
This post highlights several moves from Phillip Beeby’s solver, which are alternatives to those appearing in the five earlier posts on Stefan Heine’s ultrahardcore 3. One result is a solution without the second blue green trial, left as a project … Continue reading
Posted in Extreme Solving, Heine, Puzzle Reviews
Tagged ALS chains, ALS-wing, APE, Beeby Sysudoku, color bridging wrap, Phillip Beeby, Stefan Heine, ultrahardcore review
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