# Tag Archives: pattern analysis

## Pattern Analysis with Coloring on UHC 1

Coloring can be combined with freeform pattern analysis to determine a small set of pattern trials for Heine’s ultrahardcore 1. Typical choices for this decision are reviewed. A single trial produces the solution. For this we go back to the … Continue reading

## Sudokuwiki Gets a Second Chance

In a second updated review post on KrazyDad v.4, b.8, n.5 , Andrew Stuart’s Sudokuwiki solver gets the clue that the ALS boomerang left unresolved, and finishes the solution, with more instructive moves. You get a shot at that unusual … Continue reading

## Books 3 and 4 In the KD Insane Review

Welcome to 2019 Systematic Sudoku. This post continues on the updated KrazyDad v4 review, with KD Insane 435 and 445. This is a brief report on what you’ll find in the updated posts of August 2013. The review update begins … Continue reading

## A Coloring Trial for Only Extreme 347

Here a Manuel Castillo Sudoku sends me directly to last resort city.  Although the bv field eludes productive XY-chains or AIC, coloring is decisive enough to solve 347 in a single trial. Your first view of the grid comes with … Continue reading

## The Chute Tabled Exocet of Unsolvable 181

This is a Thursday extra post reporting the sysudokie hand solving of an Andrew Stuart Unsolvable, #181 of January 2, 2016. It applies a tabulation method to resolve context of a double exocet, accepting their common solution for trials. I … Continue reading

## Fata Morgana Wrapped in Pink Olive

In this post, the solution of the well known monster Fata Morgana is reached via pattern analysis, on a trial of pink patterns vs olive patterns, a frequently used Sysudoku extreme method. In the previous post, the orange candidates of … Continue reading

Posted in Extreme Solving, Monster | | 2 Comments

## Closing the Weekly Extreme Review

This is the final post of the Sysudoku WEC collection review. It opens with a checkpoint on the finish of a pink/olive pattern analysis and with it, Weekly Extreme Competition 435. A review table shows the features found in each … Continue reading

## The ALS Jump Ball

The last review puzzle from the Weekly Extreme Competition, Wex 435, evades the Sue de Coq to give us: a precaution about grouped forcing chains in XYZ-wings, a genuinely extreme patterns trial, and an obvious form of ALS trial to … Continue reading

## Finishing More Extreme 200

This post continues, slicing the 9 patterns of More Extreme 200, and conducting trials of the divided sets. A brief, but decisive cluster merge ends the struggle. Antoine was right. #200 is outstanding. Following a pink/olive analysis on the 9 … Continue reading

## Taking on More Extreme 200

This post and the next checkpoint a sysudokie solution of Antoine Alary’s extra tough More Extreme 200. Sysudokie readers are given an opportunity to get a little extreme, as well. Happy St. Patrick’s Day. Let’s do the 200. But first, … Continue reading

Posted in Alary, Extreme Solving, Puzzle Reviews | | 2 Comments