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.[1] The manuscript has been ascribed possible writing dates of 1500–1505 or 1471.[2]