Monthly Archives: April 2018

Strmckr’s Double Common ALS_XZ

This post translates an instructive example from “strmckr”, an expert forum contributor, and adds some observations about double common ALS_XZ.  Then Sudent comments on some Sudoku history that Strmckr included with his example. In his comments on the April 10 … Continue reading

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An ALS Toxic Set Update

This post reviews Sysudoku history on the problem of spotting ALS toxic sets, and presents the updated  recommendation in the ALS Toxic Set page just completed for the Guide.  This spotting process, to be referred to here as ALS partnering, … Continue reading

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A WXYZ vs. BARN Settlement

In this post, progress is reported on the Sysudoku Guide, and on  a possible territorial agreement between the WXYZ wing and the Bent family. The Guide, that link up there on the menu bar, is taken shape. The Basic pages … Continue reading

Posted in Advanced Solving, Expert Reviews, Hanson | Tagged , , , , , | 4 Comments

Departing Highlights on Bean’s Extremely Hard Sudoku

It’s time to wind up the volume 10 review, with a few highlights behind the review table. The first one is the very unusual basic trace of IV-12, the homework puzzle of the previous post. You have the characteristic Extremely … Continue reading

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