Tag Archives: forcing chain XYZ

Other Pattern Trials for Unsolvable 190

This post continues with UnSolveable 190 to point out  alternative pattern trials leading to the solution, by clearing the monster fog of candidates.. Here again is the  grid after the blue pattern trial of the first 190 post.  Considering  the … Continue reading

Posted in Uncategorized | Tagged , , , , , | Leave a comment

A Little More Extreme

Here is a follow up on the advanced level More Extreme 4, with background looks at the bv map, XYZ map, and X-panel . There is a challenge to find a forcing chain XYZ alongside a regular one. Entering the … Continue reading

Posted in Advanced Solving, Alary, Puzzle Reviews, Sudoku Toolware | Tagged , , , , , , , , | Leave a comment