University Studies 3-Fall 2013-Aftermath of Eighth meeting (November 21) 

Gordon's book, chapters 10 and 11 pp 81-86 (pdf file)

My notes for Gordon's book, chapter 10 (Examples 32-34) 5pp (pdf file)

Pages 2 and 3 depict my way of summarizing the actions taken in beginning to solve the puzzle. I got stuck earlier than the author (Gordon) did (by 8 cells!---see page 3)

Picture of board at end of Professor Eppstein's presentation (image1)