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Category Archives: Shortz
Beware 195 Ends a Basic Review
In this final post of the review of Will Shortz’ Hard Sudoku v.1, Beware! Very Challenging 195 is solved in the bypass. The review table is included for comparisons. A new mode of blog posts will include reports and links … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
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Beware 185 Finished in Line Marking
A basic clinic is concluding for those wishing to make assembling candidates an entertaining task. It is Sysudoku basic on Will Shortz’ Hard Sudoku v.1. The solution detailed this week is Beware! Very Challenging 185. Here is the basic trace … Continue reading
Beware 175 Follows Suit
This continues the review of Will Shortz’ Hard Sudoku v.1, with another documented basic finish. Starting the Guide? Accounting for each move in this series, then trying them beforehand, will make Sysudoku basic yours. Beware 175 matches 165’s collapse point, … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
Tagged box/line, naked pair, Will Shortz Hard Sudoku
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A Hidden Single Dispatches Beware 165
This post continues a review of Will Shortz’ Hard Sudoku, v.1. with the sixth of ten pre-selected puzzles. Each one is resolved at the basic level. The detailed review requires time and patience, but its value is the detailed examples … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
Tagged hidden singles, line marking, Will Shortz Hard Sudoku
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Be Especially Aware 155
This post demonstrates how, in line marking, the partially line marked grid invites the error of using an incompletely marked cell as a completely marked one. Every Beware in this review of Will Shortz’ Hard Sudoku v.1 highlights a different … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
Tagged line marking, Will Shortz Hard Sudoku
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It’s the Bypass In Hard Sudoku v1 145
I had Will Shortz’Hard Sudoku v.1 145 collapsing in box marking, showing that every phase of Sysudoku Basic is actively solving, not just accumulating candidates for advanced methods later. But in process of writing this up, I discovered that the … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
Tagged bypass trace, Will Shortz Hard Sudoku
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Three Basic Phases on Beware 135
An easy basic workout, with help from 3-fills, a hidden single, many naked pairs, and a hidden dublex in Beware 135, the fourth in the review of Will Shortz’ Hard Sudoku, v.1. And two suggestions for Sysudoku readers. The basic … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
Tagged 3-forms, chute fill, slink marking, Will Shortz Hard Sudoku
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Hard Beware 125 Bypass
This post continues the review of 10 pre-selected Beware! Very Challenging puzzles from Will Shortz’ volume 1 of Hard Sudoku, with Beware 125. The review is a Sysudoku Basic Clinic, all being solved before candidates are completed and advanced methods … Continue reading
Chute Filling Beware 115
The second selection for the review of Will Shortz’ Hard Sudoku v.1 is Beware! Very Challenging 115. After a checkpoint on the Sysudoku Basic solution path, there is a brief report on the Guide’s Pattern Analysis page, now published in … Continue reading
The Akron 2017 Championship Sudoku
This is another Sysudoku analysis of the championship puzzle of the Sudoku tournament put on by the Akron-Summit Public Library. It’s an annual tournament of four rounds, the last being a three person solve – off on poster board grids, … Continue reading