These are official unicode symbols !! : r/AnarchyChess

Chess symbols in Unicode - Wikipedia

Unicode Glyphs

Crazy Tiles Chess - Chess Forums

How to say Knook (as well as many other pieces) in unicode! : r/AnarchyChess

For those who want to play chess in a terminal but can't see these unicode chess pieces because they're so small. : r/AnarchyChess

c++ - Win32 Console Chess Black pawn font issue - Stack Overflow

interface - Drawing a chessboard with unicode characters - User Experience Stack Exchange

Adventures in Unicode SMS

More Bulldog Chess Templates - Chess Forums

Designing chess icons. Modern icons for a 1400 year old game, by Gyan Lakhwani