Monthly Archives: June 2012

A Colorful AIC Feast

Posted on June 26, 2012 by Sudent

We are met today to confirm the AIC take down by sysudokie readers on a tough steer,  Megastar Maestro 49 of Fall 2009. The rodeo begins with limited coloring, the identification of five AIC hinge cells, and an extension of … Continue reading →

Posted in Advanced Solving | Tagged , , , , | 1 Comment

An AIC Checkpoint and Challenge

Posted on June 19, 2012 by Sudent

Here we finish off a puzzle that dazzles with artful AIC.  And I hand out a sysudokie AIC solo challenge.  First comes your checkpoint on the alternative route to the initial AN confirming loop, built upon the luscious 2-chain on … Continue reading →

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Alternate Inference Chains (AIC)

Posted on June 12, 2012 by Sudent

Readers of this blog are familiar with an alternate inference chain in the form of an XY-chain on a bv map, or an xyt-chain on the grid, or as an X-chain or grouped X-chain on an X-panel.  Humans, as opposed … Continue reading →

Posted in Advanced Solving | Tagged , , , | 2 Comments

Coloring Sue de Coq and APE

Posted on June 5, 2012 by Sudent

Coloring is a general purpose weapon.  It limits the puzzle’s  ability to satisfy the restrictions imposed by  Sue de Coq and APE .  This explains why sysudokies  record the “almost” patterns found in the bv scan, and return to them … Continue reading →

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