context: 1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. f1b5 The Rossolimo line is a frequent guest at the top level. GM Sveshnikov once considered it the only way to fight against his beloved defense. 3... g7g6  4. e1g1  4... f8g7  5. f1e1 