Sakata Elo, 9 dan (White) vs. Iwamote Kaoru, 8 dan, 1956. GoGoD 1956-00-00c.sgf. Komi = 4½ pts.
After White has a winrate estimate of 93½% (17.9k playouts). However, Black, Iwamoto, won by resignation.
cuts two White groups apart. Then White has many options. is Elf's top choice, but it has only 8.3k playouts. After I guess the number of playouts dropped below 1.5k, which is why Elf stops there.
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According to Elf loses 19½% by comparison with connecting at 14. At the time was considered to be joseki, the connection was not.