Monthly Archives: November 2020

UHC 355 Provokes a SASdC Trial

Posted on November 24, 2020 by Sudent

After a typical ultrahard Sysudoku Basic, Sudokuwiki starts with an APE so unusual as to change my working definition of the APE. APE stands for Aligned Pair Elimination.  From every example so far, I thought it was the two elimination … Continue reading →

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A Coloring Trial Weakens ultrahardcore 311

Posted on November 17, 2020 by Sudent

Sorry about last week’s post arriving a week earlly. This week continues the solving of Stefan Heine’s ultrahardcore 311 with a coloring trial, and an enabled Beeby marching to the solution. Here is the trial grid, after the removal of … Continue reading →

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All Hands on Deck Against UHC 311

Posted on November 3, 2020 by Sudent

This post gets us into coloring and and a look at the Beeby ALS-wing with an  ALS_XZ map. Also the solvers illustrate a new pattern analysis resource. Picking up from last post, Beeby now comes in with a complex 1-way. … Continue reading →

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A Long Path Begins in ultrahardcore 311

Posted on November 3, 2020 by Sudent

This post begins a series of three, reporting moves by the human oriented review solvers Sudokuwiki and Beeby on Stefan Heine’s UHC 311.  Maybe you can shortcut this long path and a trial, but it allows me to illustrate human … Continue reading →

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