Tag Archives: AIC color wrap

Cluster Maintenance Pays in Nakamoto Extreme 23

In this post, a cluster wrap interrupts the Sudokuwiki march on Nakamoto Extreme 23, with an abrupt collapse. The following post then follows the original solution through to another example of Andrew Stuart’s “digit forcing chain”, to note that human … Continue reading

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Almost Extreme Bean ExHdv10 II-29

Here we have a regular XYZ wing with two irregular victims, multiple coloring clusters and wraps, one, by an AIC almost nice loop. Rebecca Beam’s Extremely Hard v.10 II-29 is borderline extreme. Basic is tough, but routine.   Except for … Continue reading

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