Chimin Oh Wins Go to Innovation Was it the lure of the thousand-euro first prize or the chance to play some serious handicap go? Whatever it was, on November 14-16, 2014 the annual Go to Innovation tournament drew fifty-five players from far and wide to Berlin. An eight-round Hahn system was used, which meant that starting scores were assigned according to the players’ EGF ratings. Additional points were earned in amounts that depended not only on who won or lost each game but also on how much he or she won or lost by and whether he or she had won in the previous round. All games were played with appropriate handicaps or komi according to the players’ current scores.
The highest-rated contestant was former Korean go instructor Chimin Oh, 7-dan, who currently resides in England. His starting score immediately put him in the lead. In his first game he beat German champion Lukas Krämer (6-dan), but then he lost a two-stone handicap game to Austrian champion Viktor Lin (5-dan). Next day he lost to Hungarian champion Pal Balogh (6-dan) and then to Lluis Oh (6-dan, Spain). Following these defeats, however, he rebounded with a string of victories over Nordic champion Yaqi Fu (6-dan, Sweden), Zebin Du (6-dan, China), Jan Hora (6-dan, Czechia, with a two-stone handicap), and Jan Prokop (5-dan, Czechia, with a three-stone handicap). His final Hahn score put him far ahead of Viktor Lin, whose four wins were good enough for the 500-euro second place prize. Zebin Du won six games and finished third (250 euros). The best performance by a female player was turned in by by Rita Pocsai (4-dan, Hungary), who earned a 500-euro prize from Omikron Data Quality in addition to her 100-euro tenth-place prize. Complete results are here.
There was also a jackpot prize for winning eight games, but nobody claimed it. In fact, no one managed to win even seven games. The Hahn system does not give anyone an easy time in any round, and in some sense it rewards the players according to how well they played, regardless of how many games they won. Jan Hora, for example, won only three games, but all his opponents ended among the top ten and he finished seventh. Perhaps next year more 7-dans will try this system out.
– James Davies