[Event "Championnat ouvert de la Mauricie"] [Site "?"] [Date "2023.05.21"] [Round "4"] [White "Potvin, Alain-Nicolas"] [Black "Morais, Antoine"] [Result "1/2-1/2"] [WhiteElo "1706"] [BlackElo "1573"] [Variant "Standard"] [TimeControl "-"] [ECO "A48"] [Opening "London System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. Nf3 g6 3. Bf4 { A48 London System } Bg7 4. e3 O-O 5. Be2 d6 6. h3 c5 7. O-O b6 8. c3 Bb7 9. Nbd2 Nbd7 10. a4 a6 11. b4? { (0.30 → -1.02) Mistake. Bg3 was best. } (11. Bg3 Rc8) 11... Nd5 12. Qb3 Nxf4 13. exf4 cxd4 14. Nxd4 Rc8 15. N2f3?! { (-0.82 → -1.66) Inaccuracy. Bf3 was best. } (15. Bf3) 15... e5 16. fxe5 dxe5 17. Nc2 Qc7 18. Rad1 e4 19. Nfe1?! { (-1.22 → -1.93) Inaccuracy. Nd2 was best. } (19. Nd2 Qxc3) 19... Ne5 20. c4 Nxc4 21. Bxc4 Qxc4 22. Qe3?! { (-2.90 → -4.53) Inaccuracy. Qxc4 was best. } (22. Qxc4 Rxc4 23. Rd6 Rc6 24. Rd1 Rc3 25. b5 axb5 26. axb5 Rc5 27. Ne3 Rxb5 28. N1c2 Ba6) 22... b5? { (-4.53 → -2.72) Mistake. Bc6 was best. } (22... Bc6 23. Na3 Qxb4 24. Nec2 Qxa4 25. Rd6 Be5 26. Rd2 b5 27. f4 Bg7 28. Nd4 b4 29. Nac2) 23. Qb6 Qc6 24. Rd6 Qxb6 25. Rxb6 Bd5 26. Ne3 Bc4?! { (-2.06 → -0.89) Inaccuracy. Bc6 was best. } (26... Bc6 27. a5) 27. Nxc4 Rxc4 28. Rxa6 bxa4 29. Rxa4 Rb8 30. g3 Rcxb4 31. Rxb4 Rxb4 32. Nc2 Rb2 33. Ne3 f5?! { (-1.17 → -0.58) Inaccuracy. Bd4 was best. } (33... Bd4) 34. Rc1 Rb7?! { (-0.99 → -0.38) Inaccuracy. Bd4 was best. } (34... Bd4 35. Rc8+ Kg7 36. Rc7+ Kh6 37. Rc2 Rb3 38. Nf1 Kg5 39. Rd2 Rd3 40. Ra2 Kf6 41. Kg2) 35. Rc2 Kf7 36. Kg2 Bd4 37. Nd5 Rb2 38. Rxb2 { The game is a draw. } 1/2-1/2