Katayama Chiteki

He seems to have introduced this opening formation to professional play, when he played Black against Honinbo Jowa in 1823. In his honour, it could be referred to as the Katayama Formation. The pattern would not be seen again until played by Hashimoto Utaro in 1929. The first player known to achieve victory with it was Yamashiro Hiroshi in 2010 (though there is an undated kifu with no player names in which White plays the opening and wins; the 5.5 komi detailed suggests that it was an earlier game.)

Disclaimer

bugcat: I've made this article based only on the appearance of this name in seven kifu, which you can find here on Waltheri. It seems likely that he was a member of the Yasui house. If there is an option to merge this article into a list of Japanese or Edo period professionals then that might be better. Katayama might well have changed his name at some point, resulting in there being less records of his games under this alias. Or possibly the kanji of his name (which we don't have) have been read in an unorthodox variant way.

JohnF There are very many of Chiteki's games extant. The GoGoD database currently has 34 but I have yet to transcribe others. He reached 6-dan, not 5-dan. The opening he tried here resurfaced in 1926, not 1929, but became rather popular with top players in the 1930s, and has never quite disappeared.