10. Nxe7 11. Nf5 12. d8=Q Qe8+ 13. Qa6 14. Qxe8#. In the latter piece, Downey treated the 21 items in the composition sequentially, identifying the above 16 coherent chess moves, and another five items as "non-moves" or pure story descriptors, per Carroll's qualification. The mating position nearly satisfies the conditions of a pure mate, a special type of checkmate where the mated king is prevented from moving to any of the adjacent squares in its field by exactly one enemy attack, among other conditions. The position is also nearly an ideal mate, a stronger form of pure mate in which every piece on the board of either color contributes to the checkmate. The one feature of the position which prevents it from being either a pure or an ideal mate is that the Red (Black) King is unable to move to e3 for two reasons: the knight's attack, and the (sustained) attack of the newly promoted, mating queen. Although pure and ideal mates are "incidental" in real games, they are objects of aesthetic interest to composers of chess problems. Language The White Queen offers to hire Alice as her lady's maid and to pay her "twopence a week, and jam every other day". Alice says that she doesn't want any jam today, to which the Queen replies, "you couldn't have it if you did want it. The rule is, jam tomorrow and jam yesterdaybut never jam to-day." This is a reference to the rule in Latin that the word iam or jam—which means now, in the sense of already or at that time—cannot be used to describe now in the present, which is nunc in Latin. Therefore, "jam" is never available today. This exchange is also a demonstration of the logical fallacy of equivocation. Poems and songs Most poems and songs of the book do not include a title. "Introduction" (prelude; "Child of the pure unclouded brow…") "Jabberwocky" "Tweedledum and Tweedledee" "The Walrus and the Carpenter" "Humpty Dumpty" Humpty Dumpty's poem ("In Winter when the fields are white…") "The Lion and the Unicorn" "Haddocks' Eyes" (i.e., "A-sitting on a Gate") Red Queen's lullaby ("Hush-a-by lady, in Alice's lap…") "To the Looking-Glass world it was Alice that said…" White Queen's riddle ("'First, the fish must be caught'…") "A boat beneath a sunny sky"(postlude; acrostic poem in which putting the beginning letters of each line spell Alice Pleasance Liddell, the girl