The excerpt above is from the Unicode Version 15.1 Alpha code charts, and reflects that synttax change to the kRSUnicode property that allows non-Chinese simplified radicals to be specified. I agree that 211.2 should be used here. Of course, the IRG P&P will need to be changed to reflect this.
Change Radical to 212.2 (竜), SC=9, FS=3 (the kRSUnicode property will be able to represent non-Chinese simplified radicals, such as this one, from Unicode Version 15.1 using two apostrophes, '', so I suggest using 2 as the digit to represent the same in IRG work; this would need to be added to the P&P)
Agree with UK, but I would go one step further by making 9.0 as the *only* radical. I cannot see how 1.0 could possibly be the radical for this ideograph.
Change Radical to 212.2 (竜), SC=8, FS=1 (the kRSUnicode property will be able to represent non-Chinese simplified radicals, such as this one, from Unicode Version 15.1 using two apostrophes, '', so I suggest using 2 as the digit to represent the same in IRG work; this would need to be added to the P&P)
Twitter user @Kesuuko_0826 found this ideograph at the top of page 8 in the following document prepared by Professor Yasuoka that shows it as entry 13120 of the revised new edition of Kadokawa's 新字源 kanji dictionary: http://kanji.zinbun.kyoto-u.ac.jp/~yasuoka/publications/2018-03-09.pdf
New evidence
This is the same evidence from the iOS version of Kadokawa's 新字源 dictionary.
I think that this is a glyph mismatch. If you look closely at the representative glyph that was provided, the vertical stroke of the upper-left component is the same (curved) stroke as the upper-left curved stroke of the lower-left component.
It is common for small kana to be rendered as regular kana in some contexts. Also, the small ケ in the same evidence image is also rendered as a regular kana, which is another clue.
IRG Working Set 2021v4.0
Source: Ken LUNDE
Date: Generated on 2024-10-10
Unification
U+31C33 𱰳
Agree to unify with 𫫕 (U+2BAD5), but as a unifiable variant whose glyph is distinct from its current source reference, UTC-00561.
Attributes
Evidence
Glyph Design & Normalization
Editorial
Other