In a previous article we examined some properties of knight-graphable words. A word is knight-graphable (NG) if the distinct letters of the alphabet used in the word can be placed on separate squares of an arbitrarily large chessboard such that a chess knight can spell out the word by starting on the square labelled with the word's first letter and making a series of knight's moves to the successive letters in the word.
Keith, Mike and Miller, Tristan
"New Puzzles On Knight-Graphable Words,"
Word Ways: Vol. 48
, Article 3.
Available at: https://digitalcommons.butler.edu/wordways/vol48/iss2/3