Category Archives: Puzzle Reviews

Reviews of preselected puzzles from published collections. Summary review table, and highlight analysis.

Funster Extreme 4 has a Near BUG

Posted on July 17, 2018 by

The review of the Extreme section of Charles Timmerman’s Funster Hard to Extreme Sudoku is underway, with Funster Extreme 4. Funx 4 has a near BUG, but it gets to the doctor early and takes Dr. Stuart’s medicine dutifully. An … Continue reading →

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Two More Basic Losses for the World’s Hardest

Posted on June 26, 2018 by

This post presents the review table, and basic traces of 46 and 188, two of the top rated ten puzzles of The World’s Hardest Sudoku Book. The puzzles were displayed on the last post. These two don’t make it to … Continue reading →

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An Untyped UR Rattles World’s Hardest 188

Posted on June 19, 2018 by

The review of World’s Hardest Sudoku continues with a quick dispatch of puzzle 188 by a unique rectangle and straightforward coloring. The UR fails its type category, but the examination uncovers an almost accidental chain interpreted after the fact as … Continue reading →

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Coloring Wrings Out World’s Hardest 102

Posted on June 12, 2018 by

World’s 102 starts without ‘1’ givens and with two 3-fill lines. It winds up in a coloring trap expansion into a wrap. Basic makes progress in all three phases.               Making a hasty bv … Continue reading →

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World’s Hardest Sudoku 65

Posted on June 5, 2018 by

Not really hardest, but entertaining. World’s Hardest Sudoku 65 has a UR challenge, a UPE, a finned swordfish, an AIC ANL, and a very different color wrap. It’s also a few cells short of a multiple solution. Basics are moderate, … Continue reading →

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LPO Knocks Out World’s Hardest 36

Posted on May 29, 2018 by

A challenge posed by The Worlds Hardest Sudoku Book 36: Is there a route to the solution less advanced than pattern analysis? The puzzle is otherwise distinguished by a BARN right out of line marking, and a notable lack of … Continue reading →

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A Colorful Ending to World’s Hardest 200

Posted on May 22, 2018 by

Here we translate into sysudokie notation the XY-chains and coloring that drag off World’s Hardest Sudoku 200, to its sudowiki solver solution. Hopefully you were better able to arrive at your own solution. First are the new developments on the … Continue reading →

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