7 piece tablebase
the FEN of the requested position
is embedded in the generated URL
FIDE's Laws of Chess
Wikipedia articles
En passant
Castling
FEN - chess position
PGN - chess game
Chess symbols in Unicode
Cheating in Chess
Immortal Games in PGN
System of Signs per Chess Informant 2008
Checkmate Patterns
36 Checkmate Patterns
Checkmate Patterns from Wikipedia
another three dozen Checkmate Patterns
Chess Fever: a 1925 Soviet short rom-com where the game of chess assumes the role of the other woman. Features the only footage of J.R. Capablance I know of.