[Event "LLM Chess"] [Site "https://lichess.org/HtMfJlvK"] [Date "2025.03.19"] [Round "-"] [White "GPT-3.5 Turbo"] [Black "Claude 3.7 Sonnet"] [Result "1-0"] [GameId "HtMfJlvK"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "C50"] [Termination "Unknown"] [Annotator "lichess.org"] 1. e4 { [%eval 0.18] } 1... e5 { [%eval 0.21] } 2. Nf3 { [%eval 0.13] } 2... Nc6 { [%eval 0.21] } 3. Bc4 { [%eval 0.12] } 3... Bc5 { [%eval 0.2] } { C50 Italian Game: Giuoco Piano } 4. O-O { [%eval 0.13] } 4... Nf6 { [%eval 0.18] } 5. d3 { [%eval 0.17] } 5... O-O { [%eval 0.17] } 6. Nc3 { [%eval 0.03] } 6... d6 { [%eval 0.06] } 7. Bg5 { [%eval 0.08] } 7... h6 { [%eval 0.16] } 8. Bh4 { [%eval 0.18] } 8... g5?? { (0.18 → 1.90) Blunder. Nd4 was best. } { [%eval 1.9] } (8... Nd4 9. Nxd4 Bxd4 10. a4 g5 11. Bg3 a5 12. Ne2 Bb6 13. Kh1 Kh8 14. f3) 9. Bg3?? { (1.90 → -0.39) Blunder. Nxg5 was best. } { [%eval -0.39] } (9. Nxg5 hxg5 10. Bxg5 Be6 11. Nd5 Bxd5 12. exd5 Na5 13. d4 Bxd4 14. Bd3 Re8) 9... Bg4 { [%eval -0.15] } 10. Nd5? { (-0.15 → -1.66) Mistake. h3 was best. } { [%eval -1.66] } (10. h3 Bh5) 10... Nxd5 { [%eval -1.75] } 11. Bxd5 { [%eval -1.59] } 11... Qd7? { (-1.59 → 0.06) Mistake. Nd4 was best. } { [%eval 0.06] } (11... Nd4) 12. c3 { [%eval 0.05] } 12... Kh7 { [%eval 0.43] } 13. b4 { [%eval 0.13] } 13... Bb6 { [%eval 0.22] } 14. a4 { [%eval -0.17] } 14... a5 { [%eval -0.17] } 15. b5 { [%eval -0.14] } 15... Ne7 { [%eval -0.17] } 16. Bxb7 { [%eval -0.07] } 16... Rab8 { [%eval 0.08] } 17. Bd5?? { (0.08 → -1.82) Blunder. Bc6 was best. } { [%eval -1.82] } (17. Bc6 Nxc6 18. bxc6 Bxf3 19. cxd7 Bxd1 20. Rfxd1 Rbd8 21. Kf1 f5 22. exf5 Rxf5) 17... Nxd5 { [%eval -1.37] } 18. exd5 { [%eval -1.28] } 18... Qf5 { [%eval -0.99] } 19. Re1 { [%eval -1.13] } 19... Rbe8 { [%eval -1.32] } 20. Re4? { (-1.32 → -2.81) Mistake. h3 was best. } { [%eval -2.81] } (20. h3) 20... Bxf3 { [%eval -2.97] } 21. gxf3 { [%eval -3.01] } 21... Qh3 { [%eval -2.95] } 22. Qf1 { [%eval -2.99] } 22... Qxf1+ { [%eval -2.82] } 23. Kxf1 { [%eval -2.95] } 23... f5 { [%eval -2.93] } 24. Rc4 { [%eval -2.95] } 24... Rf6?? { (-2.95 → -0.41) Blunder. f4 was best. } { [%eval -0.41] } (24... f4 25. Kg2 fxg3 26. fxg3 Re7 27. h4 Ref7 28. Rf1 h5 29. hxg5 Kg6 30. Re4) 25. h3 { [%eval -0.37] } 25... f4 { [%eval -0.01] } 26. Bh2 { [%eval -0.05] } 26... Kg6 { [%eval -0.06] } 27. Ke2 { [%eval -0.09] } 27... Kf5 { [%eval -0.19] } 28. Rg1 { [%eval -0.2] } 28... Rg8 { [%eval -0.08] } 29. Rg2?! { (-0.08 → -1.11) Inaccuracy. Re4 was best. } { [%eval -1.11] } (29. Re4 Kg6 30. d4 Rf5 31. Kd3 Rh8 32. Kc4 Rhf8 33. Rg2 Kh5 34. Rg4 Rg8) 29... Rg7?! { (-1.11 → -0.13) Inaccuracy. h5 was best. } { [%eval -0.13] } (29... h5 30. Bg1) 30. d4?? { (-0.13 → -2.55) Blunder. Re4 was best. } { [%eval -2.55] } (30. Re4) 30... exd4 { [%eval -2.58] } 31. cxd4 { [%eval -2.13] } 31... Bxd4?? { (-2.13 → 3.18) Blunder. Re7+ was best. } { [%eval 3.18] } (31... Re7+ 32. Kd3 Re1 33. Rg1 Rxg1 34. Bxg1 Kg6 35. h4 Kh5 36. hxg5 hxg5 37. Rc1) 32. Rxd4 { [%eval 3.23] } 32... Rfg6 { [%eval 3.51] } 33. h4 { [%eval 3.23] } 33... gxh4?? { (3.23 → 8.47) Blunder. Re7+ was best. } { [%eval 8.47] } (33... Re7+ 34. Kf1 Rgg7 35. Rg1 Ke5 36. Re4+ Kf5 37. Rc4 Ke5 38. Kg2 Kxd5 39. Rgc1) 34. Rxg6?! { (8.47 → 5.66) Inaccuracy. Rxf4+ was best. } { [%eval 5.66] } (34. Rxf4+ Ke5 35. Rf7+ Kxd5 36. Rxg7 Re6+ 37. Kd2 Rf6 38. f4 c6 39. b6 Re6) 34... Kxg6 { [%eval 5.59] } 35. Bxf4 { [%eval 5.46] } 35... h3 { [%eval 5.37] } 36. Bh2 { [%eval 5.31] } 36... Kf5 { [%eval 5.68] } 37. Rh4 { [%eval 5.52] } 37... Rg2 { [%eval 6.64] } 38. Rxh3 { [%eval 6.35] } 38... Rxf2+?? { (6.35 → Mate in 14) Checkmate is now unavoidable. Rg7 was best. } { [%eval #14] } (38... Rg7 39. Rxh6 Re7+ 40. Kf1 Re8 41. Bg3 Kg5 42. Rh7 Rc8 43. Rh4 Rd8 44. Rc4) 39. Kxf2 { [%eval 16.78] } 39... c6?! { (16.78 → Mate in 7) Checkmate is now unavoidable. Kg5 was best. } { [%eval #7] } (39... Kg5 40. Ke3) 40. dxc6 { [%eval #7] } 40... Ke6 { [%eval #7] } 41. Rxh6+ { [%eval #6] } 41... Kd5 { [%eval #6] } 42. Rxd6+ { [%eval #5] } 42... Kc4 { [%eval #5] } 43. c7 { [%eval #4] } 43... Kb3 { [%eval #4] } 44. c8=Q { [%eval #3] } 44... Kxa4 { [%eval #3] } 45. b6 { [%eval #4] } 45... Ka3 { [%eval #3] } 46. b7 { [%eval #3] } 46... Kb4 { [%eval #3] } 47. b8=Q+ { [%eval #2] } 47... Ka3 { [%eval #2] } 48. Rd3+ { [%eval #2] } 48... Ka2 { [%eval #2] } 49. Qc2+ { [%eval #1] } 49... Ka1 { [%eval #1] } 50. Rd1# { White wins. } 1-0