En passant is the one chess move whose legality you can't read off a static board — it's legal only if the captured pawn just advanced two squares. So every board below was replayed from a real game score and verified under that rule. Nothing here is invented: the games are fetched live from lichess.org in your browser.
Every en passant shown is replayed and verified by en-passant-guard.js.
En passant is rare (~1 game in 15), so a scan may need a few hundred games to surface some.