Code point
U+2BBB
Glyph appearance depends on your fonts.
U+2BBB
SoU+2BBB OVERLAPPING WHITE AND BLACK SQUARES is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Miscellaneous Symbols and Arrows block.
Choose the representation you need, then copy its value.
U+2BBB
11195
⮻
⮻
E2 AE BB
2BBB
00002BBB
%E2%AE%BB
\u2BBB
\u2BBB
\u2BBB
\2BBB