Duda is happy to play an  IQP but with a c6 pawn instead of an e6 one. This promises him some extra  possibilities along the a2-g8 diagonal. One additional plus for White is  the presence of all the pieces on the board.
1. d2d4  1... d7d5  2. c2c4  2... c7c6  3. g1f3  3... g8f6  4. b1c3  4... e7e6  5. e2e3  5... b8d7  6. d1c2  6... f8d6  7. f1d3 Let's skip the opening part quickly, the action is about to start soon. 7... e8g8  8. e1g1  8... d5c4  9. d3c4  9... e6e5  10. h2h3  10... e5d4 