Word polygon each word. Further rules may be set. One letter may be highlighted, and all words made must include that letter. A minimum length for words may be set. There is always at least one word that can be made using all of the available letters, and the rules may require that a maximum length word be found. With each puzzle, a number of words to aim for is usually included as a guide, with three difficulty ratings: good, very good and excellent. Each puzzle differs in its target, depending on the letters given to work with. In Australia, "The Advertiser"
Bixby letter imitate Lincoln's handwriting, calling it "halting and awkward and makes his forceful hand appear like a child's scrawl". Tobin's facsimile also errs when compared to the original text of the letter published in Boston newspapers; adding the salutation "To Mrs Bixby, Boston Mass", misspelling the word "assuage" as "assauge", omitting the word "to" after the word "tendering", changing the plural "words" into "word", not capitalizing the words "freedom" and "republic", missing the recipient "Mrs. Bixby" on the bottom left, and combining the original three paragraphs into one. Huber's Museum corrected the spelling of "assuage" in their version of the facsimile.