The Square with Upper Left Diagonal Half Black symbol (◩). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Geometric Shapes.
The quickest way is to copy ◩ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
◩ is U+25E9 (decimal 9705).
Use ◩ in HTML to render ◩ on a web page.
On Windows you can type it with Alt+9705 (hold Alt and enter the number on the numeric keypad).
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