Monthly Archives: May 2012

Bridging Coloring Clusters


With slinks left out of our Medusa coloring cluster, we can often form a significant second cluster, or maybe a third. Then the cluster colors interact through candidates of the same number that see each other or through colors of … Continue reading

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Coloring Checkpoints


This post contains checkpoints for my sysudokie friends following the blog on Maestro 50 and Maestro 4 On the Maestro 50 coloring: In the first coloring, 8’s in E and SE and 9 in SE, are trapped.  They all see … Continue reading

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Color Wraps and Color Traps


A color wrap kills half the candidates in a cluster, and promotes the other half into clues.  If  you took up the challenge to color Maestro  40,  I’m  confident that you discovered the color wrap. That is a removal or … Continue reading

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Box Marking of Maestro 4


This is an extra post for any sysudokies working up Maestro 4 for color bridging. After 1: NWm=>Wm, Sm.  2: Cm. 3:NWm=>Wm, Sm.  4: NEm=>Em.  5: SW5=>Sm. 6: Nm=>Cm, SWm.   7:  Nc5np67.  8:  9: NE9=>(SEm, NE4=>(NW4m, NE5m=>E5m), NE2m), Cm. the grid … Continue reading

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The Slink Magic of Coloring


Coloring is magic. It invokes the power of the strong link in ways that normally escape our attention. In coloring, we construct networks of slinks, called clusters. Each candidate of a cluster has one of two colors. Each of this … Continue reading

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The SudoPod?


When I ran across, in http://www.sudowiki.org, Andrew Stuart’s treatment of a pattern he says is “poached straight from Sudopedia”, I thought  there must be a serious disagreement in the Sudoku community over the use of the term “Franken fish”.  Andrew’s … Continue reading

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Finned Mutant Fish


This revised post illustrates how the n base, n cover rule is applied in the mutant fish economy. An example of a valid finned fish is followed by a homework assignment checkpointed by a forward link to the Hodoku review … Continue reading

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