Zen (software)
Zen, sold as Tencho no Igo (Japanese: 天頂の囲碁, literally Zenith Go) in Japan, is a Go playing engine developed by Yoji Ojima (尾島陽児), a Japanese Go programmer.
History
Zen won a gold medal in 14th Computer Olympiad in May 2009.[1] It won the Computer Go UEC Cup in 2011, 2014, and 2016.
In 2011, Zen19D reached 5 dan on the KGS Go Server, playing games of 15 seconds per move. The account which reached that rank uses a cluster version of Zen running on a 26-core machine.[2]
In 2012, Zen beat Takemiya Masaki (9p) by 11 points at five stones handicap, followed by a 20-point win at four-stone handicap in the 6th E&C Symposium in Japan.[3]
Zen defeated Kobayashi Koichi at three-stone handicap in the 4th Densei-sen on 23 March 2016.[4]
Zen's first commercial version was released in Japan on 18 September 2009. Zen 2 was released on 27 August 2010, Zen 3 on 30 September 2011, Zen 4 on 27 July 2012, and Zen 5 on 13 December 2013.
