While the variation was popularized and deeply analyzed by Grandmasters and Efim Geller , it was originally dubbed the "Pelikan" after the Czech player Karel Hromádka . The name "Pelikan" is older, named after the bird, perhaps alluding to the flexibility or the "beak-like" grip the variation can have on the center. In modern chess literature, "Sveshnikov" is the more common term, but they refer to the same critical position.