Tag Archives: finned fish

World’s Hardest Sudoku 65


Not really hardest, but entertaining. World’s Hardest Sudoku 65 has a UR challenge, a UPE, a finned swordfish, an AIC ANL, and a very different color wrap. It’s also a few cells short of a multiple solution. Basics are moderate, … Continue reading

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More Satisfaction in Saturday 2


This post completes the last hour of the Satisfaction Sudoku tour of Sysudoku, with alternative solution paths beyond the bv scan in Saturday 2. It features a finned X-wing, a coloring wrap, and an alternative freeform pattern analysis with a … Continue reading

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Hodoku’s Multiple Fin Krakens


This post finds multiple fin kraken swordfish, with additional removals, where Hodoku overlooks kraken analysis. This prompts an examination of the Hodoku kraken fish examples in its Last Resorts section, which offer no guidance for human solving. The homework was … Continue reading

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Kraken Fish Invade Hodoku’s Pond


This post starts with a homework checkpoint on single fin kraken analysis, via the blank line tally and suset scratchpad. The homework demonstrates an essential technique for finned fish that is missing from Hodoku. Then these sysudokie techniques find additional … Continue reading

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Hodoku Goes Fishing


This post reviews Sysudoku techniques and tools for regular and finned fish, using them to enumerate the finned fish in a Hodoku Franken fish (boxes and lines) example. The introductory Hodoku Fish page describes the highly theoretical approach coded into … Continue reading

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Smooth Navigation in Rocky Terrain


This post reports a sysudokie attack on Alary’s More Extreme 84 with several highlight eliminations. A naked triple and a combination X-panel punch on the tightly linked numbers lead to a polarity ANL, color bridging and a surprising color wrap. … Continue reading

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The Peter Gordon Fishing Guide


We leave November and basic solving with a review of Peter Gordon’s advanced solving recommendations in his Mensa® Guide to Solving Sudoku, now re-issued as the PuzzleWright Guide etc. After a brief summary of the Guide’s general failings, this post … Continue reading

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