1. e2e4  1... c7c6  2. g1f3  2... d7d5  3. b1c3  3... g8f6  4. e4e5  4... f6g8 A paradoxical move, reminding  of some games of Nimzowitsch. Black welcomes a closed pawn structure,  similar to the French, while accepting a loss of no fewer than three  moves. What makes it playable is the early development of the white  knights that takes away important pawn moves, c2-c3 and f2-f4. 5. d2d4  5... c8g4 This is another important detail: Black won't get stuck  with the bad Bc8. 6. f1e2  6... e7e6  7. f3g5 An interesting decision. White doesn't give much value to the  bishop pair and instead clears out for his f-pawn. 7... g4f5 A reply in kind. 8. e2h5  8... f5g6  9. e1g1  9... f8e7  10. g5h3  10... c6c5  11. h3f4  11... c5d4  12. c3b5  12... b8c6  13. b5d4  13... c6d4  14. d1d4  14... g8h6  15. f4g6  15... h7g6  16. h5e2 Somehow Duda emerged with a decent position, and  here I expected him to castle. 16... h6f5 Instead, he decided to  leave his rook on the h-file. 17. d4a4  17... e8f8  18. e2d3  18... e7c5  19. g2g3 