Tag Archives: confirming ANL wrap

Sudokuwiki Reaches Its Digit Forcing Chain


This post illustrates the power of coloring to employ the strong link network, and again rejects Andrew Stuart’s Digit Forcing Chains?. The post bypasses the Nakamoto Extreme 23 coloring wrap of the previous post, and follows Sudokuwiki AIC building  to … Continue reading

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A Colorful Finish on Classic 144


This post continues the solution of James Forest’s Classical Sudoku 144. The boomer parade pauses for a pair of AIC  ANL.  This one uses reversed bv to switch from 2-chain to 8-chain and back again.           … Continue reading

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