1989 · first Ing Cup final, game five
Cho Hunhyun wins the first Ing Cup under eight-point komi
Korea sent only Cho Hunhyun to the new world event. He recovered from 1-2 down and beat Nie Weiping as Black under Ing rules. The Korean Baduk Association identifies the early White 28 as slow: world titles can begin leaking in the opening.
Cho Hunhyun (Black) vs Nie Weiping (White) · 1989.09.05 · Singapore · game five · Black won by resignation · series 3-2
A new world event tested rules and the balance of power
Ing Chang-ki's tournament used Ing counting and eight-point komi. Eight points are not mechanically identical to eight Japanese territory points; any AI number must be read with its rule setting.
The Korean association recalls that Cho was the country's only entrant. His victory placed Korean professional Go inside a world-title landscape then framed mainly by China and Japan.
A lone entrant still carries an ecosystem
The single berth and homecoming created a powerful lone-hero story, but Cho had institutions, training partners, and international exchange behind him.
Official review emphasizes no miracle: White 28 was slow, Black gained direction, and Black 47 increased pressure. The title grew from repeated efficient choices.
White 28 fails to ask Black a question
The move pursues a plausible plan but leaves Black's next choice unrestricted. Black can build on a larger scale and turn first-move responsibility into active pressure.
To diagnose slow, compare whether a candidate forces reply and still lets White reach the other wing. TreeView shows the interest charged on one lost tempo.
With unusual rules, separate win rate from score lead
After Black 27, the played White 28 and three candidates share one precomputed root.
An opening PV does not predict the whole game. It compares speed; win rate absorbs rules and turn, while score lead estimates current board value.
Four definitions of speed
O4 raises Black from about 26.6% to 30.8% and narrows the score from -2.0 to -1.6. White remains favored under eight-point komi but spends margin.
E17 gets 4,339 visits: exchange F18, then turn to Q6 and R6 on the lower right.
P2 gets 2,723 visits, settling P3, O4, and N2 before returning to E17—the same wings in reverse order.
R17 gets only 411 visits and about 29.0% for Black; it is an informative upper-right exploration, not a tied recommendation.
A trophy redrew the world map of Go
Cho's win accelerated Korean Go's popularity and anticipated Korea's later world-title era.
The durable lesson is simpler: rules set the baseline, and opening speed decides who asks first. Click the lines to see exactly where slow begins.