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[[FILE:JohannJoss.jpg|border|right|thumb|240px|link=http://info.uptrend.ch/uptrend/page/display/johanns-blog?v=29| Johann Joss <ref>[http://info.uptrend.ch/uptrend/page/display/johanns-blog?v=29 Johanns Blog]</ref> ]]

a Swiss mathematician and Ph.D in mathematics from the [[ETH Zurich]], in the 90s affiliated with the [http://www.iumsp.ch/ University Institute of Social and Preventive Medicine of Lausanne]. He already started computer chess programming in 1967 on a [https://en.wikipedia.org/wiki/CDC_1604 [CDC I604 1604|CDC 1604 A]] <ref>[http://www.computerwoche.de/a/computer-logik-im-koeniglichen-spiel,1205123 Erstes Computer-Schachturnier der Gesellschaft für Informatik] October 17, 1975, [[Computerworld#Woche|Computerwoche]] 42/1975 (German)</ref>, and his chess program [[Tell]] participated at the first two [[World Computer Chess Championship|World Computer Chess Championships]], the [[WCCC 1974]] in [https://en.wikipedia.org/wiki/Stockholm Stockholm] and the [[WCCC 1977]] in [https://en.wikipedia.org/wiki/Toronto Toronto], and won the first German computer chess tournament, the [[First GI Computer Chess Tournament]], 1975 in [https://en.wikipedia.org/wiki/Dortmund Dortmund] <ref>[http://www.computerwoche.de/a/tells-geschoss-schachmatt,1205122 Tells Geschoß: Schachmatt], October 17, 1975, [[Computerworld#Woche|Computerwoche]] 42/1975 (German)</ref> <ref>[http://www.computerwoche.de/heftarchiv/1975/42/1205115/ Computerschach: Mini besiegt Maxi], October 17, 1975, [[Computerworld#Woche|Computerwoche]] 42/1975 (German)</ref>.