In a rapid game played a few days ago, I missed this chance:
Chigorin Club – UBC Club, 2013
I took on f6, played Nd5, and the position got murky, as both kings lost the chance to castle.
12. Bb5+ ! gave White a great position. After 12… Nc6 13. Bxf6 gxf6 14. Nd5! makes it clear who’s in charge here: