Category Archives: Green

Sysudoku Basic Subsets in a Sunday 5-Star

Posted on March 29, 2022 by Sudent

In this post, a Dave Green Sunday 5-star illustrates how naked and hidden subsets are spotted in Sysudoku Basic, a 3-stage process to identify candidates, and solve many Sudoku puzzles in the process.    Sysudoku Basic finds clues and subsets … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , , | Leave a comment

Dave Defies the Bypass on a July Saturday

Posted on March 15, 2022 by Sudent

This post encounters a very odd situation. All the givens in your homework Dave Green Saturday 4-star of 7/18/21 are on corner cells of the boxes. No double line exclusion (dublex) or cross hatch clues in the bypass. The past … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , | Leave a comment

Doing Every 4-Fill

Posted on March 8, 2022 by Sudent

In the Dave Green 5-star of 1/23/22, four 4-fills are available before starting the bypass values list, on r2, r8, c2, and c8. It brings up the possibility that 4-fills can solve this Conceptis puzzle by themselves? We normally put … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , , | Leave a comment

4-Fills Lead off on a  Dave Green Surprise

Posted on March 1, 2022 by Sudent

In this Sunday 5-star of June 13, 2021, two 4-fills are resolved before the bypass value march begins. Follow-up continues in box marking, leaving little line marking to be done.  Coloring is demanded and it responds, with an unexpected discovery. … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , | Leave a comment

All the Way With Dave

Posted on February 22, 2022 by Sudent

This post goes through Sysudoku Basic with the Dave Green puzzle published in the Akron Beacon Journal on Sunday October 10, 2021. It’s the first in a series of published Conceptis puzzles selected to illustrate basic moves introduced in the … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , | Leave a comment

Two Dave Green 4-fills

Posted on May 25, 2021 by Sudent

This post reports Sysudoku Basic on the two Dave Green puzzles of the previous post. In the Sunday 5-star of 4/17/21 on the left, a 5-fill becomes a 4-fill when N6 drops in. It is immediately  resolved to a 3-fill … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged | Leave a comment

A Bracket Busting Dave Green 4-Star

Posted on June 2, 2020 by Sudent

Here’s the  basic trace on the Saturday Dave Green 4-star shown at the end of last week’s post. It survived the three Sysudoku Basic  phases: bypass, box marking and line marking. It’s the first I remember. Let’s talk through the … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , , , , | Leave a comment

Another Dave Green Sysudoku Basic Workout

Posted on October 8, 2019 by Sudent

This post details  another Sunday Dave Green 5-star coming ever so close to breaking the limit that Dave seems to impose on his Sunday puzzles. It appeared in the 9/15/2019 edition of the Akron Beacon Journal. My grid is unimpressed … Continue reading →

Posted in Basic Solving Procedures, Green, Puzzle Reviews | Tagged , , , , | Leave a comment

A Surprising Dave Green Sunday 5-Star

Posted on September 26, 2017 by Sudent

My Sunday morning ritual Sudoku, the Dave Green 5-star of September 3, 2017,  sent me upstairs for PowerPoint support. This one breaks tradition by surviving Sysudoku basic, and with a heavy line marking. After no other advanced progress,  a four … Continue reading →

Posted in Advanced Solving, Green, Puzzle Reviews | Tagged , , | Leave a comment

Dave Green’s Three Column Bypass 3-Fill

Posted on July 18, 2017 by Sudent

This post traces the bypass solution of Dave Green’s Friday **** of July 7, 2017, an amazing follow up to my recent addition of 3-fill’s to the slink marking bypass. This puzzle, starting with  three column 3-fills among the givens, … Continue reading →

Posted in Basic Solving Procedures, Green | Tagged , , | Leave a comment