Probably one of the hardest slab problems in the world.
The line was subject of some controversy in Japan c.2020 after repeats were claimed that drifted onto slightly easier ground to the left. It was later clarified by first ascensionist Tokio Muroi that a sloper on Zutsu was out. [1]
It’s not known if all the repeats before the clarification followed the strict line.
6 successful ascents recorded.
| Climber | Style | Ascent Date | Suggested Grade |
|---|---|---|---|
| Tokio Muroi First ascent. | Boulder | worked | Dec 2007 | |
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With no pads. |
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| Keita Kurakami Second ascent. | Boulder | worked | 24th Dec 2016 | |
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With one very thin mat to keep feet clean. References |
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| Mito Shimokawa Third ascent. | Boulder | worked | 18th Jan 2018 | |
References |
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| Shinya Ando Fourth ascent. | Boulder | worked | 19th Jan 2018 | |
References |
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| Junta Sekiguchi | Boulder | worked | 2020 | |
References |
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| Yuki Miyashita | Boulder | worked | 2021 | |
References |
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