Monthly Archives: May 2018

LPO Knocks Out World’s Hardest 36

Posted on May 29, 2018 by Sudent

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 Sudent

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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Andrew’s Solver Tames Worlds 200

Posted on May 15, 2018 by Sudent

This post walks through the “very  hard” part of the solution path taken by  Andrew Stuart’s Solver through puzzle 200 of The World’s Hardest Sudoku Book by authors unknown. This is a remarkable turn of events for a blog devoted … Continue reading →

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World’s 36 and 200 Basic, and More on 25

Posted on May 8, 2018 by Sudent

In this post, checkpoint traces on World’s Hardest 36 and 200, and a direct comparison with  two Strmckr solutions to Worlds 25. Also, a Gordon Fick contribution to the cause. Here is Strmckr’s first solution, right out of line marking. It’s … Continue reading →

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The World’s Most Over-Titled Sudoku Book

Posted on May 1, 2018 by Sudent

This post starts the review of World’s Hardest Sudoku Book, tracing Very Hard 25, the only one rated a 1.00. The review will cover the highest rated 10, taking the rating down to 0.90. The lowest of the 200 is … Continue reading →

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