The Chebanenko Slav has been  Malakhov's bread and butter for many years now and its occurrence was  definitely not a surprise for White. Or, as Dubov put it, it was as  surprising as \"rain in England.\"
1. d2d4  1... d7d5  2. c2c4  2... c7c6  3. g1f3  3... g8f6  4. b1c3 