.

Subj:.....The Scholar's Puzzle (S645)           From the book              "More Mathematical Puzzles of Sam Loyd"            Edited by Martin Gardner            From: Dover Publications in 1960   Move one circle to make four rows of three-in-a-line. Jennie, the brightest little girl in school, is showing a cleaver puzzle to her classmate, Joe.  After drawing six small circles on the fence, she said: "Now you can see only two rows with three circles in a line.  I want you to mark out one circle and draw it somewhere else on the fence so that there will be four rows of three-in-a-line."

.
.
.

.   ...