Monthly Archives: January 2020

Cluster Maintenance Pays in Nakamoto Extreme 23

Posted on January 28, 2020 by Sudent

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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Nakamoto Extreme 3 Exits in Full Color

Posted on January 21, 2020 by Sudent

This post continues the Sysudoku report and supplemented Sudokuwiki solution of Nakex 3. We pick up from last week with matching  8 pairs in E and SE. The starting slink has been available since Sudokwiki entered AIC building, but new … Continue reading →

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Reviewing a Truly Extreme Collection

Posted on January 14, 2020 by Sudent

This post and the next initiate a review of Sudoku Puzzle Book, Extreme Level by J. B. Nakamoto, with Nakex 3. The review combines moves by Andrew Stuart’s Sudokuwiki solver with Sysudoku alternatives, while reporting and interpreting moves in accordance … Continue reading →

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Super Fiendish Ends With 87 and 97

Posted on January 7, 2020 by Sudent

The review of Brian Challenger’s Sudoku Super Fiendish is ending quietly. SF 87 gets into beginning advanced, while SF 97 is finished in line marking. As to difficulty level, this small collection ranges widely and erratically. Is it  Fiendish? Not … Continue reading →

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