This book, Volume III, at this moment is one of the most profound, rigorous and well-documented investigations ever into the history of draughts or chess. In this monumental work, around one thousand books dealing with history, bibliography, technical treatises, literature, general culture, etc. were carefully studied and referenced. The intersection between the games of chess and draughts was much greater than was first thought, as the present research demonstrates. And as could not be otherwise: with the work and cooperation of one of the all-time great figures of the history of draughts and a chess historian specialized in the medieval-renaissance period and technical bibliography, everything would out. Indeed, a solid foundation on which to accommodate a truth that had so fiercely resisted the light of day. If this were not the case, without this team work, a lot, and maybe too much, time would have gone by until everything would have finally settled into its rightful place.