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Pacioli wrote an unpublished treatise on chess, De Ludo Scachorum (On the Game of Chess). Based on Leonardo da Vinci's long association with the author and his having illustrated De divina proportione, some scholars speculate that Leonardo either drew the chess problems that appear in the manuscript or at least designed the chess pieces used in the problems.

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Luca Pacioli (1445 - 1514, sometimes "Paciolo") is the central figure in this painting (by Jacopo de Barbari*, 1495). Perhaps no other work so epitomizes the deep Renaissance connection between art and mathematics. Pacioli (a Franciscan friar, shown in his robes) stands at a table filled with geometrical tools (slate, chalk, compass, dodecahedron model, etc.), illustrating a theorem from Euclid, while examining a beautiful glass rhombicuboctahedron half-filled with water.

The golden ratio is explored in Luca Pacioli's book 'De divina proportione' of 1509 - (portrait of Pacioli by Jacopo de' Barbari - 1500s)

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from allposters.com

Stella Octangula, from "De Divina Proportione" by Luca Pacioli, Published 1509, Venice

Stella Octangula, from "De Divina Proportione" by Luca Pacioli, Published 1509, Venice Giclee Print at AllPosters.com