Monthly Archives: October 2021

UHC 221 Vies for Right Page ultrahardcore Status

Posted on October 26, 2021 by Sudent

In this post, an unbalanced line marked grid is chiseled down some by an unlikely series of 1-ways and ALS chains by the two DIY oriented solvers. Starting with the bypass grid, with the bypass clues and fill strings in … Continue reading →

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UHC 177 Stretches It Out

Posted on October 19, 2021 by Sudent

In this post, Heine’s left page ultrahardcore 177 gets from one cluster wrap to two more in a long series of AIC and boxlines. Also included is the review table for uhc 1 -177. Continuing from the green wrap of … Continue reading →

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UHC 177 Introduces a Beeby Option

Posted on October 12, 2021 by Sudent

This post gets left page ultrahardcore 177 to coloring with an interesting Sysudoku Basic and a kraken X-wing accessed with a recently added AIC option. Stefan Heine’s ultrahardcore 177 makes many left page concessions, but makes a fight of it. … Continue reading →

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Closing Out ultrahardcore 133

Posted on October 5, 2021 by Sudent

Resuming on ultrahardcore 133 after two 1-ways, and a r1 naked pair 16 removing 16r1c3, and the resulting NW naked pair 48 removing 4r3c3.  Solver Beeby finds this ALS node AIC. Starting from 6r2c9, it was a possible exit from … Continue reading →

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