List of CJK Unified Ideographs Extension B. Range: U+20000-U+215FF.
List of CJK Unified Ideographs Extension B. Range: U+21600-U+230FF.
List of CJK Unified Ideographs Extension B. Range: U+23100-U+245FF.
List of CJK Unified Ideographs Extension B. Range: U+24600-U+260FF.
List of CJK Unified Ideographs Extension B. Range: U+26100-U+275FF.
List of CJK Unified Ideographs Extension B. Range: U+27600-U+290FF.
List of CJK Unified Ideographs Extension B. Range: U+29100-U+2A6DF.
The block has dozens of variation sequences defined for standardized variants. It also has thousands of ideographic variation sequences registered in the Unicode Ideographic Variation Database. These sequences specify the desired glyph variant for a given Unicode character. It is the only CJK Unified Ideographs Extension block with a UCS2003 source identifier. Since Extension B contained too many characters, the original code charts were produced with a single glyph for all regions. The glyphs were designed by Beijing Zhongyi Electronic Ltd.. After the introduction of multi-column code charts, the original glyphs were retained under the UCS2003 source identifier. The glyphs are packaged in the "SimSun-ExtB" font distributed with the Simplified Chineseversions of Windows, and do not adhere to the glyphs for the Mainland China region.
Known issues
Other 3 glyphs in Extension B
In CJK Unified Ideographs Extension B, some characters are incorrectly unified with others. These characters include U+2017B, U+204AF and U+24CB2. The first two characters contained a wrong unification of Chinese Mainland and Vietnamese source of their glyph, while the last one unifies the Chinese Mainland and Taiwanese ones.
Unifiable variants and exact duplicates in Extension B
Also in CJK Unified Ideographs Extension B, hundreds of glyph variants were encoded. In addition to the deliberate encoding of close glyph variants, six exact duplicates and two semi-duplicates were encoded by mistake:
U+34A8 㒨 = U+20457 ? : U+20457 is the same as the China-source glyph for U+34A8, but it is significantly different from the Taiwan-source glyph for U+34A8
U+3DB7 㶷 = U+2420E ? : same glyph shapes
U+8641 虁 = U+27144 ? : U+27144 is the same as the Korean-source glyph for U+8641, but it is significantly different from the Chinese Mainland-, Taiwan- and Japan-source glyphs for U+8641
U+204F2 ? = U+23515 ? : same glyph shapes, but ordered under different radicals
U+249BC ? = U+249E9 ? : same glyph shapes
U+24BD2 ? = U+2A415 ? : same glyph shapes, but ordered under different radicals
U+26842 ? = U+26866 ? : same glyph shapes
U+FA23 﨣 = U+27EAF ? : same glyph shapes
History
The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs Extension B block:
