Knight's Tour Quotes (KTQs), also called Knight's Tour Crypts, are a word puzzle enjoying a new vogue in the National Puzzlers' League since David Silverman reintroduced them in 1973. Dmitri Borgmann presented some examples in "Chesswords" in the May 1974 Word Ways. A KTQ is a quote written out along a knight's tour. It is a form, usually rectangular, with each square containing a single letter or punctuation mark. Stepping from letter to letter by knight's moves (two squares horizontally or vertically, then one square perpendicular to that), visiting all letters once, one can spell out a message. To reduce the task from drudgery to pleasure, the starting letter is underlined and the word lengths and punctuation of the message are given.
Cohen, Philip M.
"Thematic Knight's Tour Quotes,"
Word Ways: Vol. 11
, Article 9.
Available at: https://digitalcommons.butler.edu/wordways/vol11/iss1/9