Sysudoku Post Titles

In posted order within topic sections

Introduction to Systematic Sudoku
  9/29/11   What This Blog is About
10/02/11   Distinguishing Features of Sysudoku
10/04/11   Slink Marking

Sysudoku Basic
10/11/11   Sysudoku Box Marking
10/13/11   Sysudoku Line Marking
10/20/11   Line Marking Follow Up
  1/31/12   Box/Line Removals
10/25/11   Subsets and  Susets
10/27/11   Locked Set Enumeration
11/01/11   Updates on Sysudoku Basic
10/07/14   The Dublex Bypass
1/06/15   An Update on the Dublex Bypass
  4/11/17   A Bypass 3-Fill on the Bus

Basic Clinic
10/14/14   Green Pastures
10/21/14   Basic by Our Fingernails
10/28/14   Just One More Dave Green
10/04/16   Green’s Labor Day Weekend Workout
10/11/16   Green’s Labor Day Sunday 5-Star
7/18/17   Dave Green’s Three Column Bypass 3-Fill

Advanced Methods

Uniqueness Removals

  1/01/13   Mashing the BUG
1/08/13   The Unique Rectangle
1/15/13   Stuart’s Hidden UR
1/22/13   Stuart’s Avoidable Rectangle
1/29/13   Beyond the Rectangle

Sysudoku BV Scan

11/08/11   Tools and Order for Advanced Methods
11/15/11   Regular XYZ-wings
11/22/11   Irregular XYZ-Wings
11/29/11   Death Blossom Lite
12/06/11   XY-Chains
12/13/11   Riding the XY Rails
12/20/11   The Remote Pair
12/22/11   De Coq on the Sue de Coq
12/27/11   Sysudoku Sue de Coq
1/03/12   Aligned Pair Exclusion
1/10/12   Trust but Verify

X-Chains

1/17/12   The X-Panel and X-Chains
1/24/12   Special X-chains
2/06/12   Alternating X-Loops
2/14/12   Slink Loops
2/21/12   Andrew Stuart’s Guardians
2/28/12   Group Therapy
3/06/12  XY-Loops

Fishing

  3/13/12   Go Fish!
3/20/12   Finned, Kraken and Sashimi Fish.
3/27/12   What Regular Fish to Fish For
4/03/12   Casting for Regular Fish
4/10/12   Krakening a Finned Fish
4/17/12   The Shameless Sashimi
4/24/12   Unraveling the Mutant Fish
5/01/12   Finned Mutant Fish
5/08/12   The SudoPod?
7/29/14   Hanson Finned Fishing with ALS
8/04/14   Suset  Sashimi
12/01/15   Hodoku Goes Fishing
12/08/15   Kraken Fish Invade Hodoku’s Pond
12/15/15   Hodoku’s Multiple Fin Krakens

Medusa Coloring

  5/15/12   The Slink Magic of Coloring
5/17/12   Box Marking of Maestro 4
5/22/12   Color Wraps and Color Traps
5/24/12   Coloring Checkpoints
5/29/12   Multi-Cluster Bridging
6/05/12   Coloring Sue de Coq and APE
8/27/13   Nice Loop Coloring of Insane 465
2/14/17   An xyt Color Wrap
7/11/17   Slink vs. Coloring Networks and Illogical Sudoku
8/29/17   Cluster Expansion by Not-Both Trials
9/05/17   AIC Slinks Finish Only Extreme 3

Alternate Inference Chains

  6/19/12   An AIC Checkpoint  and Challenge
6/26/12   A Colorful AIC Feast
7/03/12   Dessert at the Colorful AIC Feast
7/10/12   The ALS Node in an AIC

Almost Locked Sets

    7/17/12   ALS Toxic Sets
7/24/12   Enumerating the ALS-XZ
7/31/12   ALS  Petaled Death Blossoms

The BARN

    8/25/15   Please Give WXYZ Some Space
2/16/16   How the BARN Was Built

Pattern Analysis

  8/07/12   LPO, a Limited Form of POM
8/14/12   Pattern Enumeration for POM and LPO
8/21/12   A Limited Pattern Overlay on Maestro 22
8/28/12   Coloring LPO
10/09/12   Searching for Orphans in LPO
10/16/12   Scrounging for New Pattern Sets in LPO
10/23/12   The Pattern Slink
7/30/13   Introducing Pink Olive Analysis
8/20/13   Insane 455 Does a Twisting Pink Olive Dive
8/27/13   Nice Loop Coloring of Insane 465
9/17/13   Pattern Trials of Insane 475
10/08/13   LPO Lettering on Insane 495
10/15/13   Grinding Down Insane 495 with LPO Coloring
7/07/15   Fata Morgana Wrapped in Pink Olive

Trials and Extreme Methods

Sysudoku Trials

12/27/11   Single Alternate SdC in Sysudoku Sue de Coq
12/24/13   Golden Nugget Exocet Trials
6/02/15   The  ALS Jump Ball
8/08/17   A Bifurcated Coloring of the AIC Slink
8/29/17   Cluster Expansion by Not-Both Trials
9/05/17   AIC Slinks Finish Only Extreme 3
10/24/17   Only Extreme 132 Joins the Extreme Team

Multiple Solutions

   7/02/13   A Ferocious  Hall of Mirrors
11/18/14   The Fiendish 100 BUG-gy Maze
9/26/17   A Surprising Dave Green Sunday 5-Star

Expert Criticism

Stuart Forcing Chains

11/06/12  Digit Forcing Chains?
11/20/12   Nishio Forcing Chains?
11/27/12   Cell Forcing Chains
12/04/12   ALS Merge of Cell Forcing Chains
12/11/12   Unit Forcing Chains
12/18/12   Forcing Chains in Sue de Coq Analysis
12/25/12   Stuffing  Your Stocking

Tom Sheldon

  2/12/13   Tom Sheldon on Sudoku Solving

Paul Stephens

  4/09/13   Starting With Stephens
4/16/13   Advanced Stephens
4/23/13   A Bv Scan of Week 48
4/30/13   Extreme Stephens
5/07/13   Stephens in the Library with a Laptop
5/14/13   To Nishio or Not to Nishio
5/21/13   The ANL Test

Bob Barker

11/19/13   Pulling Rank
11/26/13   Higher Rank Theory
12/03/13   Rank’s Little Gotcha

Bob Hanson

  6/03/14   Bob Hanson’s Sudoku Assistant
6/10/14   Basic Solving With Bob Hanson
6/17/14   Basic Hanson Homework
6/24/14   Sudoku Assistant Finds Locked Sets
7/01/14  Bob Goes  Fishing
7/08/14  Bent Naked What?
7/15/14  Hanson’s Bent Naked n-Set
7/22/14   Sudoku Assistant’s ALS Toxic Sets
7/29/14   Hanson Finned Fishing with ALS
8/04/14  Suset  Sashimi
8/12/14  Hanson’s Polarity ANL
8/19/14  Hanson’s Strong and Weak Hinges
8/26/14  Trial or Error?
9/02/14   Harvest from the Sudoku Assistant  Report

Gordon’s Guide

  9/30/14   Gordon’s Guide Basics
12/02/14   Gordon’s  Fishing Guide
12/09/14   Gordonian UR-ology
12/16/14   A Gordonian Fantasy
12/23/14   Plus and One-Sided Unique Polygons
12/30/14   Extended Gordonian Overreach
1/13/15   Wings and Chains With the Gordon Guide
1/20/15   Cycling Blindfolded  with the Guide

Arnold Snyder

  7/28/15   Sadistic Sudoku Review
8/04/15   Basic Solving with Arnold Snyder
8/11/15   Advanced Solving with Arnold Snyder
8/18/15   Arnold  Abandons Reason

Hobiger’s Hodoku

  9/01/15   An Unusual Review
9/08/15   Hodoku Unique Rectangles
9/15/15   Hodoku Sue de Coq  in 2015
9/22/15   Hodoku’s Limited XYZ  Wings
9/29/15   Decoding Hodoku Chain Notes
10/06/15   Hodoku Chain Building
10/13/15   Hodoku XY-Chains
10/20/15   Hodoku X-chains on  the X-panel
10/27/15   Hodoku Nice Loop Mythology
11/03/15   Simplifying Hodoku AIC
11/10/15   Hodoku’s Continuous Nice Loops
11/17/15   Hodoku Grouped AIC  I
11/24/15   Hodoku Grouped AIC II
12/01/15   Hodoku Goes Fishing
12/08/15   Kraken Fish Invade Hodoku’s Pond
12/15/15   Hodoku’s Multiple Fin Krakens
12/22/15   Hodoku Franken Fish
12/29/15   Hodoku ALS  Toxic Sets
1/05/16   Hodoku ALS Chains
1/12/16   Hodoku ALS Death Blossoms

Carol Vorderman

  2/23/16   Mastering Basic Sudoku With Carol Vorderman
3/01/16   Vorderman’s Super Difficults

The Hidden Logic of Sudoku

10/18/16   Berthier’s Hidden Logic of Sudoku
10/25/16   SudoRules Hidden Singles Reverse Engineered
11/01/16   Naked Singles in SudoRules
11/08/16   Hidden Logic Symmetries of THLS
11/15/16   Hidden Triples Hard and Easy
11/22/16   Hidden Logic Box/Line Interactions
11/29/16   Fishing in Lake Supersymmetry
12/06/16   Suset Jelly in nrc Space
12/13/16   THLS vs Unique Rectangle
12/20/16   The Limited XYZ-wings of THLS
12/27/16   THLS Needs a Ride on the XY Railway
1/03/17   Hidden XY Chains Are Reverse XY AIC
1/10/17   No THLS Case for Hidden XY Chains
1/17/17   Remaining XV hXY Avoided
1/23/17   THLS Limps In On Chains
1/31/17   A Chicken Chok’in Checkpoint on Unhidden Chains
2/07/17   Berthier’s xyt-chains in THLS
2/14/17   An xyt Color Wrap
2/21/17   Berthier’s xyt-Chains Rated Extreme
2/28/17   Berthier’s xyzt  Chain
3/07/17   A Closing ALS Postscript on THLS

Seemel’s Sudoku Satisfaction

  3/14/17   The Sudoku Satisfaction Tour
3/21/17   Touring the Bypass and a Human Engineered Inscription
3/28/17   BV Scan Satisfaction in Saturday 2
4/04/15   More Satisfaction in Saturday 2

Collection Reviews

Tom Sheldon’s Master Class

    2/05/13   Grading the Master Class
2/19/13   Snapshots from Sheldon’s Master Class

Frank Longo’s Absolutely Nasty Level 4

    2/26/13   Absolutely Nasty Level 4 Review
3/05/13   Absolutely Nasty 4  Review  Snaps I
3/12/13   Absolutely Nasty 4  Review  Snaps II

Paul Stephens Extremes

    5/28/13   Paul Stephens’ Extremes Review
6/04/13   Stephens Extremes  Snapshots  I
6/11/13   Stephens’ Extremes  Snaps  II
6/18/13   Stephens’ Extremes  Snaps  III

Will Shortz Ferocious, Trickiest

    6/25/13   Shortz’ Ferocious Falls Short
7/02/13   A Ferocious  Hall of Mirrors
7/09/13   Shortz’ Trickiest Bewares?

KrazyDad SuperTough

    3/19/13   KrazyDad Super Tough Review
3/26/13   KrazyDad Super Tough Snapshots
4/02/13   KrazyDad Super Coloring

KrazyDad Insane

  7/16/13   The Insane Review Begins
7/23/13   Medusa Cluster Merge by Pattern Coloring
7/30/13   Introducing Pink Olive Analysis
8/06/13   Insane 435 Knockout in the Third
8/13/13   An Insane 445 March to the Bridge
8/20/13   Insane 455 Does a Twisting Pink Olive Dive
8/27/13   Nice Loop Coloring of Insane 465
9/03/13   Sue de Coq Trials of Insane 475
9/17/13   Pattern Trials of Insane 475
9/24/13   A Bridge Over Insane 485
10/01/13   Verifying Sue de Coq Alternatives in Insane 495
10/08/13   LPO Lettering on Insane 495
10/15/13   Grinding Down Insane 495 with LPO Coloring
10/22/13   An Insane Review is Completed

Xaq Pitkow  Sudoku v.3

  1/07/14   Polishing Pages and Posts for 2014
1/14/14   Xaq Pitkow’s Expert Collection
1/21/14   Pitkow’s Grand Master Sudoku
1/28/14   Advancing through GM 5
2/02/14   The Orphans of GM 95
2/11/14   Pitkow’s Super Grand Masters
2/18/14   Two Colorful  Super Grand Masters

Nikoli X-treme Sudoku 

  9/09/14  Nikoli’s X-treme Sudoku
9/16/14  The Empathy of Nikoli  Composers?
9/23/14  X-treme Hidden and Naked Treasures

Wayne Gould’s Fiendish Sudoku

11/04/14   Gould’s Not So Fiendish
11/11/14   Fiendish NPM Wins and Loses
11/18/14   The Fiendish 100 BUG-gy Maze

Frank Longo’s Gordon Guide Collection

  1/27/15  Gordon Guide Puzzle Review
2/03/15   Gordon Guide 775 Concluded

Antoine Alary More Extreme

  2/10/15   How Extreme is More Extreme?
2/17/15   A Little More Extreme
2/24/15   Alary at His Stingiest
3/03/15   Smooth Navigation in Rocky Terrain
3/10/15   Just One More “More Extreme”
3/17/15   Taking on More Extreme  200
3/24/15   Finishing More Extreme  200
5/05/15   Fick Tricks More Extreme

Weekly Extreme Competition

  3/31/15   Weekly Extreme 426 Trials
4/07/15A Colorful Verification Creams Wex 427
4/14/15   Sue de Coq Defeats a Slippery Wex 428
4/21/15   Wex 429 is Sued
4/28/15   Wex 430 Bewitched  by  Sue de Coq 200
5/12/15   Wex 431 Slips by Sue, but is Caught
5/19/15   Two More Weekly Extremes  Join Sue’s Parade
5/26/15   Tracing Exercise with Wex 434
6/02/15   The  ALS Jump Ball
6/09/15   Closing the Weekly Extreme Review
  7/21/15    Revisiting  Wex 435        
 

Longo’s Nastiest Ever

  1/19/16   Longo’s Nastiest Collection
1/26/16   Longo’s Nastiest Ever Party II
2/02/16   Tough, But Not So Nasty
2/09/16   Longo’s Nastiest  Ever After

Djape Hard Sudoku

  3/15/16   Djape’s Only Hard Sudoku

Ardson Very Hard v.2 

  4/18/17   An Ardson Truly Hard Collection
4/25/17   An Ardson Very Hard Workout
5/02/17   Ardson Not So Hard Ardv2 118
5/17/17   Ardson Very Hard v.2 158
5/23/17   Ardson Very Hard v.2 198 and 238
5/30/17   Another Look at Ardson Very Hard v.2 38
6/06/17   Ardson Very Hard v.2 278, Plus 38 Comments
6/13/17   Ardson Very Hard v.2 318
6/20/17   A Little Harder Ardson v2. 358
6/27/17   A Very Hard Finale with Ardv2 398
7/04/17   Closing Very Hard v.2 with the Real 38
7/11/17   Slink vs. Coloring Networks and Illogical Sudoku

Rebecca Bean 600 Extremely Hard Sudoku

  7/25/17   Bean’s Extremely Hard I
8/01/18   Two of Bean’s Less Extreme

David Badger 1001 Sudoku Hard

  8/15/17   David Badger’s 1001 Hard Sudoki
8/22/17   Badger’s Advanced Sudoku

Castillo’s Only Hard and Only Extreme

  3/29/16   Castillo’s Only Hard Sudoku
9/12/17   A Well Hidden Pair in Only Hard 128
9/18/17   Bookends of the Only Hard
10/03/17   An Advanced Path on Only Extreme 3
10/10/17   Only Not Really Extreme 46
10/17/17   Only Extreme 89 Guilty on Two Counts
10/24/17   Only Extreme 132 Joins the Extreme Team
10/31/17   An Almost Extreme Tags Five Advanced Bases
11/07/17   Only Extreme 218 Straight Up
11/14/17   Only Extreme 218 on Trial by Sysudoku SASdC

11/21/17   Pattern Coloring and Not-Both on Only Extreme 261
11/28/17   Definitely Extreme 304
12/05/17   Dragging in Only Extreme 304
12/12/17   Only Extreme 347 Demands a Color Trial?
12/19/17   Only Extreme 390 – a Fitting Finale

Monster Sudoku

The Golden Nugget

10/29/13   A Trials Experiment with Golden Nugget
11/05/13   A Tough Nugget  Removal
11/12/13   Akron Sudoku Tournament 2013
12/10/13   Nugget’s Exocet
12/17/13   Packing for the Golden Nugget Exocet Assault
12/24/13   Golden Nugget Exocet Trials
12/31/13   Solving The Golden Nugget

The Easter Monster

  2/23/14   Steve’s  Opening Volley on the Easter Monster
3/04/14   The Snake Attacks Easter Monster
3/11/14   Kurzhals’ Easter Monster Attack
3/18/14   Advancing the Colors on The Easter Monster
3/25/14   Core Patterns in the Easter Monster
4/01/14   LPO Coloring Trials on the Easter Monster
4/08/14   An Easter Monster Alibi Holds Up
4/15/14  The Easter Monster Falls

The HM Easter Monster

  4/22/14   The Hanson Marans Easter Monster
4/29/14   The HM Easter Monster  HM and SK Loops
5/06/14   Building a Cluster  in the HM Easter Monster
5/13/14   A Second Cluster for the  HM Easter Monster
5/20/14   LPO Color Trial on the HM Easter Monster
5/27/14   HM Easter Monster Solved

Fata Morgana

6/16/15   The Fata Morgana Exocet
6/23/15   Trial 13 of Fata Morgana
6/30/15   Fata Morgana  Sysudokie Fried
7/07/15   Fata Morgana Wrapped in Pink Olive
7/14/15  The Olive Side of Fata Morgana

Stuart Unsolvables

  9/04/12   Advancing on Unsolvable #40
9/11/12   Unsolvable 40 Goes Through the ALS Wringer
9/18/12   LPO vs. Unsolvable 40
9/25/12   Unsolvable 40 Solved?
10/30/12   Unsolvable 40 Logically Solved
2/18/16   Chute Tabled Exocet on Unsolvable 181
3/08/16   Sysudoku for Unsolvabrights
3/22/16   Exocet  Chute Table on Unsolvable 186
4/05/16   Archiving Exocet Trials in Unsolvable 190
4/12/16   More 8-Pattern Trials on Unsolvable 190
4/19/16   Other Pattern Trials for Unsolvable 190
4/26/16   The Sysudoku Cross Line Exocet Filter
5/03/16   CLEF Homework on Unsolvable 190
5/17/16   CLEF-ing Unsolvable 197
5/24/16   Completing CLEF for Unsolvable 197   5/24/16
5/31/16   Bird’s JE Solution of Unsolvable 197

Milestones

10/02/12   First Year Anniversary
11/12/12   Akron 2012 Sudoku Tournament
11/25/14   The 2014 Akron Sudoku Tournament
9/27/16   Recovering From a Small Disaster