Tomohiro KUBOTA says, in the Debian introduction to i18n:
An example of Han Unification is available at U+9AA8. This is a Kanji character for 'bone'. U+8FCE is an another example of a Kanji character for 'welcome'. The part from left side to bottom side is 'run' radical. 'Run' radical is used for many Kanjis and all of them have the same problem. U+76F4 is an another example of a Kanji character for 'straight'. I, a native Japanese speaker, cannot recognize Chiense version at all.
He has a larger page up at
http://www.debian.or.jp/~kubota/unicode-unihan.html
that goes through the 1st grade and part of the 2cd grade (school-wise) characters and classifies them as Identical, Acceptable, Wrong (but understandable) and Unreadable.
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