Monthly Archives: August 2019

PencilPress 41 and A Well Hidden Dublex


In the review of PencilPress Extreme Sudoku, 41 is a another bypass blow out, with two steep collapses. Tom Sheldon’s Master Class 50 hands you a hidden dublex that is a challenge to spot and verify. We’re reviewing the PencilPress … Continue reading

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PencilPress 33 and Master Class 40


Another test of your Sysudoku Basic, and another witness that the PencilPress Extreme collection is basic level. On the other hand, that doesn’t make it dull. The bypass is actually a worthy challenge, but you have to experience it to … Continue reading

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PencilPress 25 and Master Class 30 Update


This post gives the third in a consistent series of bypass collapses of the pre-selected review puzzles from 500 Sudoku Extreme Puzzles by PencilPress. This is verifiable fact because readers can reproduce the sequence of grids of a solution path,  … Continue reading

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