A no komi game between Go Seigen 8 dan (W) and Sakata 7 dan, GoGoD 1950-07-04a. The usual caveats about no komi games apply. For Sakata to take Black with no komi was the usual handicap; given the dan difference Sakata would take White ⅓ of the time. Elf estimates White's winrate at 92½% with a komi of 7½ points. Even with no komi, White, Go Seigen, won by resignation.
According to Elf, both players made a number of small mistakes early in the game, which may be explained by the shared beliefs about the opening at the time. The first sizable mistake was , which may have also been a mistake with no komi.
caught me by surprise. When I was learning go the sacrificial hane at 20 was joseki. It appears that allowed White to make too much outside strength with .
At the time, 25 was usual, but today's bots have devalued the sides.
is good shape. a would allow a double peep.
According to Elf, loses 12½%. OC, the subsequent fight is complicated, and there is no komi, so was not necessarily a mistake.