Monthly Archives: January 2021

A Lite Update on Castillo’s Only Extreme 347

Posted on January 26, 2021 by Sudent

This post updates a solution by coloring trial in the review post of 12/19/17. A bypass of 6 4-fills resolves 3 of them immediately,  but goes no further than the original 3-fill only bypass.  Then we follow Beeby through a … Continue reading →

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A Lite Coloring Update of Castillo’s Only Extreme 261

Posted on January 19, 2021 by Sudent

This post is the first of several which update earlier review solutions to include a new guy in town, lite coloring. The earlier posts will be left as they are, except for added links to these updating posts. Instead of … Continue reading →

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An Error Hides a Lite Coloring Trap on ultrahardcore 399

Posted on January 12, 2021 by Sudent

This post corrects an error on the post of December 8, that prevents a lite coloring trap in ultrahardcore 399. Then there’s follow up on the trap, with the lite coloring marking in place. Trial is not avoided, but the … Continue reading →

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Lite Coloring in a Red Russel Special

Posted on January 5, 2021 by Sudent

This post explains lite coloring as I understand it from comments and emails from its apparent inventor, Dov Mittelman. I only know Dov as a reader of this blog. He (or she) does his analysis in his head and on … Continue reading →

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