Category Archives: Basic Solving Procedures

Starting with slink marking to find all remaining candidates.

The First Beacon Journal Gold


 In the first CREATORS Gold of 3/12/22, a 4-fill created by the third clue begins a long follow up leg through a second 4-fill. A hidden dublex helps on E4. The bypass trace jumps back to continue effects lists four … Continue reading

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A Hidden Triple From Hidden Logic


Hidden pairs are rare, but hidden subsets of n > 2 are rarer still. This updated solution of Royle 17-13727, a puzzle from a large collection of puzzles of 17 givens, was an example in The Hidden Logic of Sudoku … Continue reading

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Sysudoku Basic Subsets in a Sunday 5-Star


In this post, a Dave Green Sunday 5-star illustrates how naked and hidden subsets are spotted in Sysudoku Basic, a 3-stage process to identify candidates, and solve many Sudoku puzzles in the process.    Sysudoku Basic finds clues and subsets … Continue reading

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Dave’s Octuplet 


In this post, 3-fills leave a near solution in the bypass, with an entirely blank box. Box marking resolves it systematically. Seeing the four 5-fills and box corner candidates, you might suspect that this is a follow up on the … Continue reading

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Dave Defies the Bypass on a July Saturday


This post encounters a very odd situation. All the givens in your homework Dave Green Saturday 4-star of 7/18/21 are on corner cells of the boxes. No double line exclusion (dublex) or cross hatch clues in the bypass. The past … Continue reading

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Doing Every 4-Fill


In the Dave Green 5-star of 1/23/22, four 4-fills are available before starting the bypass values list, on r2, r8, c2, and c8. It brings up the possibility that 4-fills can solve this Conceptis puzzle by themselves? We normally put … Continue reading

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4-Fills Lead off on a  Dave Green Surprise


In this Sunday 5-star of June 13, 2021, two 4-fills are resolved before the bypass value march begins. Follow-up continues in box marking, leaving little line marking to be done.  Coloring is demanded and it responds, with an unexpected discovery. … Continue reading

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All the Way With Dave


This post goes through Sysudoku Basic with the Dave Green puzzle published in the Akron Beacon Journal on Sunday October 10, 2021. It’s the first in a series of published Conceptis puzzles selected to illustrate basic moves introduced in the … Continue reading

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Coloring KDST 5 10 5 is Too Easy


The bypass almost finishes KrazyDad Super-Tough v.5, b.10, #5, whether or not you start with the 4-fill and two 3-fills. Here’s my 4-fill version. Line marking is minimal, and coloring on the few candidates remaining wraps green in r6. With … Continue reading

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KDST 535 Trips on a Basic X-Wing


The X-wing is the easiest fish to spot. So easy, that the process of line marking finds it if you’re paying attention. KrazyDad’s Super-Tough v.5, b.3, #5 demonstrates. The last line marked was r1, because it had the most free … Continue reading

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