1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... f8c5  4. b1c3  4... g8f6  5. d2d3  5... a7a6  6. c3d5 [%c_effect d5;square;d5;type;Interesting;persistent;true] The game quickly enters uncharted territory. There are only 40 games in my database with this move, which is quite a feat for move six in such a mainstream opening as the Italian. 6... f6d5  7. c4d5 The best way to capture. 7... e8g8  8. e1g1  8... d7d6  9. c2c3  9... d8f6  10. a2a4  10... a6a5  11. h2h3  11... h7h6 It's usually good to reply to an h3-move with ...h6, making clear to your opponent that you're also patient. Slow maneuvers begin, and the evaluation (equality) doesn't change for a long time. 12. d5b3  12... c5a7  13. c1e3  13... c8e6  14. f1e1  14... a7e3  15. e1e3  15... a8d8  16. b3e6  16... f6e6  17. d3d4 White finally takes some concrete action in the center. Now Black has a choice: whether to keep the central tension or play ...17...exd4. 17... c6e7  18. d1e2  18... c7c6 Black decides to avoid a queen invasion on b5. 19. e2c2  19... e7g6  20. a1d1  20... f8e8  21. g1h2  21... g6f4  22. d1d2  22... e6c8  23. c2b3  23... c8c7  24. g2g3  24... f4e6 Both players showed considerable patience during the maneuvering phase, but now the fireworks are about to begin. 25. h3h4 It's not clear what this move achieves. 25... e5d4 [%c_effect d4;square;d4;type;GreatFind;persistent;true] Praggnanandhaa changes the pawn structure at the right time. 26. c3d4  26... d6d5 [%c_effect d5;square;d5;type;GreatFind;persistent;true] 27. e4e5 The only move in order to avoid being left with an isolated pawn. 27... c6c5 White has many options, all of them leading to a more or less drawn position. 28. e3c3  28... c7e7  29. b3b6  29... e6d4  30. f3d4  30... c5d4  31. d2d4  31... e7e5  32. c3d3  32... d8d6  33. b6a5 [%c_effect a5;square;a5;type;Inaccuracy;persistent;true] This is the beginning of White's problems. 33... d6f6  34. d3d2 [%c_effect d2;square;d2;type;Inaccuracy;persistent;true] 34... e5e1 [%c_effect e1;square;e1;type;GreatFind;persistent;true] Suddenly the position becomes very dangerous for White. 35. a5d5  35... f6f2  36. d2f2  36... e1f2  37. h2h3  37... e8e3  38. d4g4 [%c_effect g4;square;g4;type;Mistake;persistent;true] The losing move. 38... f2f1 The simplest way to win. 39. d5g2  39... f1f5 [%c_effect f5;square;f5;type;GreatFind;persistent;true]