Tag Archives: no pencil marks

Fiendish NPM Wins and Loses


The NPM collapse of Fiendish 130 is checkpointed, with regular slink marking backup on the solving logic. Then slink marking reveals the more demanding mental task necessary for NPM solving of Fiendish 145. Your “No Pencil Marks” trace to a … Continue reading

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

Gould’s Not So Fiendish


This post begins a review of Wayne Gould’s Fiendish collection in his Train Your Brain Su Doku. The review is an opportunity to take up an important issue in basic solving, the use of pencil marks. For the ten preselected … Continue reading

Posted in Basic Solving Procedures, Expert Reviews, Puzzle Reviews | Tagged , , , , , | 1 Comment

Just One More Dave Green


Here we savor one more basic solving 5-star gem by Dave Green, appearing in my paper, the Akron Beacon Journal, October 19, 2014. My plan was to conclude the Dave Green portion of the Sysudoku basic solving clinic with the … Continue reading

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