In five moves the automaton won

In five moves the automaton won

Maelzel's book of endgames still exists today, at the Library Company of Philadelphia. It was a hand-selected series of games that were essentially guaranteed wins for the automaton, provided that the director memorized them correctly.

The switch to endgames from complete games eventually caused a bit of consternation amongst the American audiences, as you'll soon see, but using them not only allowed Maelzel to challenge more opponents and put on more performances a day, but also afforded Constance -- who was surely the weakest player to ever direct the automaton -- a real chance of winning.