[Event "Vienna"] [Site "Vienna AUH"] [Date "1873.08.25"] [Round "11.1"] [White "Wilhelm Steinitz"] [Black "Josef Heral"] [Result "1-0"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "B40"] [Opening "Sicilian Defense: Four Knights Variation"] [Termination "Unknown"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 Nf6 { B40 Sicilian Defense: Four Knights Variation } 6. Ndb5 a6?! { (0.22 → 1.31) Inaccuracy. d6 was best. } (6... d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 Be7 11. Bxf6) 7. Nd6+ Bxd6 8. Qxd6 Qe7 9. Bf4 Qxd6 10. Bxd6 Kd8 11. O-O-O Ne8 12. Bg3 Ke7 13. e5 f6 14. f4 f5?! { (1.94 → 3.19) Inaccuracy. h5 was best. } (14... h5 15. Bh4 b5 16. Be2 Bb7 17. Bf3 Nd8 18. Ne4 Bxe4 19. Bxe4 Rc8 20. Rhe1) 15. Bh4+ Kf7 16. Na4 h6?! { (3.01 → 3.91) Inaccuracy. b5 was best. } (16... b5 17. Nb6 Rb8 18. Nxd7 Rb7 19. Nc5 Rc7 20. Bf2 g5 21. fxg5 Ng7 22. Re1) 17. Nb6 Rb8 18. Nxc8 Rxc8 19. Rxd7+ Kg6 20. Rxb7 Nc7 21. h3 Nd5 22. Bg3? { (2.97 → 1.20) Mistake. Bxa6 was best. } (22. Bxa6 Ncb4 23. Rxb4 Nxb4 24. Bxc8 Rxc8 25. c3 Kh5 26. Be1 g5 27. fxg5 hxg5) 22... Ncb4? { (1.20 → 2.70) Mistake. Nd4 was best. } (22... Nd4 23. Bd3) 23. c3?? { (2.70 → 0.14) Blunder. c4 was best. } (23. c4 a5 24. a3 Na6 25. Bf2 Nc5 26. Bxc5 Rxc5 27. g3 Rd8 28. Be2 Ne3) 23... Nxa2+ 24. Kb1 Naxc3+ 25. bxc3 Nxc3+ 26. Kb2 Nd1+? { (0.29 → 1.45) Mistake. Rhd8 was best. } (26... Rhd8 27. Bxa6) 27. Ka3 Rc1 28. Bc4 Rc8? { (0.80 → 2.17) Mistake. Ra1+ was best. } (28... Ra1+ 29. Kb3 Rd8 30. Bf2 Rb1+ 31. Kc2 Rxb7 32. Rxd1 Rxd1 33. Kxd1 Rb2 34. Ke1) 29. Bxe6 Ra1+ 30. Kb4 a5+? { (1.32 → 3.23) Mistake. Rb1+ was best. } (30... Rb1+ 31. Ka5) 31. Kb5 Rb1+ 32. Ka6 Ra8+ 33. Ra7 Rab8 34. Bf7+ Kh7 35. Bf2 Nxf2 36. Rxb1 Rxb1 37. Be6 Kg6 38. g4 fxg4 39. hxg4 Nxg4 40. Bxg4 a4?! { (3.40 → 4.43) Inaccuracy. h5 was best. } (40... h5 41. Bd7 Rh1 42. Kxa5 h4 43. Ra6+ Kf7 44. Bc6 Rd1 45. Bf3 Rd3 46. Bh5+) 41. f5+ Kg5 42. Rxg7+ Kf4 43. f6 Kxe5 44. f7 Rf1 45. Bh5 Rf2 46. Rg3 Ke6?? { (4.91 → Mate in 9) Checkmate is now unavoidable. Rf6+ was best. } (46... Rf6+ 47. Kb5 Ke6 48. Kxa4 Rf4+ 49. Kb3 Rf5 50. Re3+ Kd6 51. Rf3 Rb5+ 52. Kc3) 47. Re3+ Kd6 48. Re8?? { (Mate in 7 → 4.70) Lost forced checkmate sequence. Bf3 was best. } { White wins. } (48. Bf3 Rxf3 49. Rxf3 Ke6 50. f8=Q Kd5 51. Qf5+ Kc6 52. Rd3 Kc7 53. Qd7+ Kb8) 1-0