[%c_effect f6;square;f6;type;GreatFind;persistent;true] This is Black's excellent idea: to play with doubled pawns and follow up with the …d7-d5 advance. I imagine this was well-studied beforehand by Predke, since at first glance it seems positionally dangerous for Black.
1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. f1b5  3... e7e5  4. e1g1  4... f8e7 [%c_effect e7;square;e7;type;Interesting;persistent;true] A rare idea in a well-known position. 5. f1e1  5... c6d4 Already a new move. A novelty on the fifth move of such a mainstream opening as the Rossolimo is an impressive accomplishment. 6. f3d4 [%c_effect d4;square;d4;type;Inaccuracy;persistent;true] This is not the best way to fight for the advantage. 6... c5d4  7. c2c3 