Endgame (2004)
For endgame, I projected mediaeval modal scales on the 64 squares and translated them a horizontally with a ’knight’s tour’. A knight’s tour is an ancient puzzle in which the object is to move a knight, starting from any square on a chess board, to every other square, landing on each square only once.
The knight's tour I used for endgame is called Guy de Chivaler. It is described in a manuscript in the King’s Library (British Museum), dated c1275 — approximately the same time Alfonso wrote his cantigas and chess treatise.