Leonardo Da Vinci is the greatest genius humanity has ever had. It was extraordinary for me discover his contribution to the modern chess game.

During 2006, in Gorizia, Italy, in the library of Count Coronini, an original manuscript was found, considered preparatory to the De Ludo Schachorum by Luca Pacioli, mathematician and great friend of Leonardo.

He describes new moves, new rules and new proportion of elements, never seen before. The solution to Leonardo rebus about “castling chess” (Io arroccherò) reveals the Leonardo’s contribution to this game.

The analyzes on the manuscript found have shown that Leonardo not only drew the newly conceived pieces, but also created many of the “diagrams” with the various positions (this can be seen from the fact that they are drawn with the left hand and that the chessboards are made without using the ruler).

The analysis of both forms, proportions of the manuscript and of the drawings shown, reveal an artist’s hand in drawing the pieces, in shapes and proportions different from the traditional game of chess that prevailed until then (we are at the end of the fifteenth century and years of the sixteenth century). There are pages and diagrams attributable to Leonardo by all scholars in the manuscript.

Passion for mathematics and element’s proportion create a superlative game we have today. Leonardo is my inspirer which I want share with others.