The Göttingen manuscript is the earliest known work devoted entirely to modern chess. It is a Latin text of 33 leaves held at the University of Göttingen. A quarto parchment manuscript of 33 leaves, ff. 1–15a are a discussion of twelve chess openings, f. 16 is blank, and ff. 17–31b are a selection of thirty chess problems, one on each page with a diagram and solution. Authorship and exact date of the manuscript are unknown. Similarities to Lucena's Repeticion de Amores e Arte de Axedres con CL iuegos de partido (c. 1497) have led some scholars to surmise that it was written by Lucena or that it was one of Lucena's sources. Although the manuscript is generally assumed to be older than Lucena's work, this is not established. The manuscript has been ascribed possible writing dates of 1500–150