Monthly Archives: July 2012

The ALS Petaled Death Blossom

Posted on July 31, 2012 by Sudent

Today we illustrate the full blown Death Blossom with ALS petals. Earlier I noted Death Blossom Lite as a removal technique in the bv scan.  Completion of a DB Lite with a closing ALS is also relatively easy to find.  … Continue reading →

Posted in Extreme Solving, Sudoku Toolware | Tagged , , | 3 Comments

Enumerating the ALS-XZ

Posted on July 24, 2012 by Sudent

This post was revised in October 2015 to update the enumeration method for ALS  toxic pairs demonstrated in the previous post. Here I also checkpoint the basic solving of demonstration puzzle of Sudoku Maestro 8-9, Fall 2009. In the next, … Continue reading →

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ALS Toxic Sets

Posted on July 17, 2012 by Sudent

A pair of non intersecting almost locked sets can define a toxic set. This kind of removal may be discovered at any time, but I place closure on ALS generated toxic sets very late in the Systematic Sudoku Order of … Continue reading →

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The ALS Node in the AIC

Posted on July 10, 2012 by Sudent

This post explains how an Almost Locked Set, an ALS, can be a node in an AIC, providing a slink between two winks connecting candidates of different numbers. In this blog the ALS was first applied in the Sysudoku version … Continue reading →

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Dessert at the Colorful AIC Feast

Posted on July 3, 2012 by Sudent

Happy 4th!  Last post, on Maestro 49 of Fall 2009 we mixed coloring and AIC to good effect, and discovered the joys of the slink/wink color shortcut in AIC chains. We continue now with two clusters. The second, red/orange cluster … Continue reading →

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