Category Archives: Advanced Solving

Techniques applying after candidates are identified. Why they work. How and when to look for them.

PencilPress 73 and Master Class 100


Two Basic level reviews continue with Pencil Press  bottom right, page 73 and Tom Sheldon’s Master Class 100.Two Basic level reviews continue with Pencil Press  bottom right, page 73 and Tom Sheldon’s Master Class 100. Let’s begin with a Sysudoku … Continue reading

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PencilPress Bottom Right 17 and Moito III-4


The review of PencilPress 500+ Sudoku Extreme Puzzles continues with bottom right, page 17.  Along with that, we return with Sudokuwiki to Moito Road to Mastery III-4, for an alternative solution without a trial. There is nothing extreme about PencilPress … Continue reading

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PencilPress Bottom Right 9 and Bean VI-24


PencilPress  500+ Sudoku Extreme Puzzles rates in Sysudoku as basic level, with most of the preselected puzzle on the bottom right corner of pages 9, 16, . . ., being solved in the bypass. In each of the posts verifying … Continue reading

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Lucky Panda 480 Ends the Review


The last review Sudoku of the Lucky Panda Books 500 Sudoku Puzzles, 480, finishes on message with Sysudoku’s choices of bv mining tools, the XY railway and coloring. If you have time for nothing else, you might try your hand … Continue reading

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Three Lucky Pandas


This post is a quick report on Lucky Panda Books 288, 336 and 384, with solutions similar to the five covered in the review. In 288, the bypass starts well on a 3-fill, but dries up fast.   A grid … Continue reading

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Lucky Panda 240 Rides Nice Loop Coloring


The candidates of a nice loop form a coloring cluster. This review puzzle from the Lucky Panda Sudoku review illustrates a decisive nice loop coloring. Two hidden UR 2 show up as well. After a productive bypass and box marking, … Continue reading

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Lucky Panda 192


This post details the basics and the easy solution of the fourth puzzle of the Lucky Panda Sudoku review, “insanely difficult” 192.  It’s not with a bv map. The bypass starts with a 3-fill and immediately resolves two. Then slink … Continue reading

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