Tag Archives: Sudoku BARN

Metcalf’s Second Patterns Game Entry


This post reports a Sysudoku solution path for Mike’s second Patterns Game entry on a extraordinary pattern of givens. As a successful entry, I believe it had to meet the contest requirement for a simpler solution than is found here. … Continue reading

Posted in Advanced Solving | Tagged , , , | Leave a comment

Another Dave Green Sysudoku Basic Workout


This post details  another Sunday Dave Green 5-star coming ever so close to breaking the limit that Dave seems to impose on his Sunday puzzles. It appeared in the 9/15/2019 edition of the Akron Beacon Journal. My grid is unimpressed … Continue reading

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , , , , | Leave a comment

Classic 168 and Updated Only Extreme 89


James Forest’s Classic Sudoku 168 is a Basic level challenge.  In this post, the Classic review is continued with the 168 box marked grid, and a basic trace carrying through the collapse on the second line of line marking. Then … Continue reading

Posted in Advanced Solving, Puzzle Reviews | Tagged , , , , | Leave a comment

An XY Playground in Classic 72


James Forest’s Classic 72 delivers two rare birds, then gets tripped up by a Y-wing. The bypass threatens to take over, but leaves  an XY playground.       The line marked grid gives all of the Sysudoku Basic results. … Continue reading

Posted in Basic Solving Procedures, Puzzle Reviews | Tagged , , , , , | Leave a comment

Books 3 and 4 In the KD Insane Review


Welcome to 2019 Systematic Sudoku. This post continues on the updated KrazyDad v4 review, with KD Insane 435 and 445. This is a brief report on what you’ll find in the updated posts of August 2013. The review update begins … Continue reading

Posted in Advanced Solving, KrazyDad, Puzzle Reviews | Tagged , , , , , , , | Leave a comment

LPO Knocks Out World’s Hardest 36


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

Posted in Advanced Solving, Puzzle Reviews | Tagged , , , , , , | Leave a comment

Andrew’s Solver Tames Worlds 200


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

Posted in Advanced Solving, Expert Reviews, Extreme Solving, Puzzle Reviews, Uncategorized | Tagged , , , , , , , , | Leave a comment