Tag Archives: APE

Sudokuwiki’s Nakamoto Extreme 103


After Sysudoku Basic, this post describes the Sudokuwiki advanced and AIC solution path on Nakex 103. The next post reports an alternative path shortened significantly by a freeform pattern analysis. Nakex 103 starts a little differently, with some bypass success: … Continue reading

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Sudokuwiki Ends Nakex 63 On Its Own


This post picks up on the Sudokuwiki/Sysudoku resolution of Nakamoto Extreme 63 where it was overtaken by pattern analysis and coloring, and finishes it in two ways, one humanly practical and one not. Sudokuwiki doesn’t maintain coloring clusters between moves, … Continue reading

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Nakamoto Extreme 43 Redefines Sysudoku Extreme


This post recounts another AIC building project of 15 boomerangs, Nakamoto Extreme 43. The Nakamoto Extreme collection justifies the ‘extreme’ label by possibly exhausting the time and patience of a human solver.  Let’s say, if a puzzle justifies a trial … Continue reading

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Super Fiendish Bookends 67 and 77


This post steps through the most fiendish of the 10 puzzles preselected for the review of Brian Challenger’s Super Fiendish Sudoku, SF 67. , and then adds one of the bypass victims, SF 77. Looking at the trace, you might … Continue reading

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Pitkow’s Grand Master Sudoku


This is a short review of the GM section of Sudoku vol. 3 , by Xaq Pitkow, published by Chronicle Books.  The puzzles vary between basic and moderately advanced levels I pre-selected 10 GM and 25 Super GM puzzles for … Continue reading

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An Insane 445 Pattern Slicing Demo


In this revised post, difficult line marking leaves a semi-monster. It is whittled down to a decisive double ANL, which can be duplicated instructively by pattern slicing.  The review puzzle, Insane volume 4, book 4, number 5, with thousands more, … Continue reading

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Absolutely Nasty 4 Review Snaps I


Here we link back to advanced solving posts as we enjoy sysudokie solving snapshots from the review table puzzles 0f Frank Longo’s Absoutely Nasty Level 4 (AN4) collection.  Did you ever get trapped looking at a neighbor’s vacation slides ?  You … Continue reading

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