[Event "Tuesday Night Marathon"] [Site "Mechanics' Institute"] [Date "2015.10.20"] [Round "1"] [White "Micah Koga"] [Black "Albert Starr"] [Result "*"] [WhiteElo "1575"] [BlackElo "1513"] [Variant "Standard"] [TimeControl "-"] [ECO "C42"] [Opening "Petrov's Defense: Three Knights Game"] [Termination "Unterminated"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Nf6 3. Nc3 { C42 Petrov's Defense: Three Knights Game } Bb4 4. Bc4 O-O 5. d3 Nxe4?? { (0.12 → 2.54) Blunder. c6 was best. } (5... c6 6. O-O d6 7. Bd2 Nbd7 8. a3 Bxc3 9. Bxc3 Nc5 10. Bb4 Bg4 11. Bxc5 dxc5 12. a4 Qd6 13. Bb3 Rfd8 14. a5 b5 15. axb6) 6. dxe4 Bxc3+ 7. bxc3 d6 8. h3 h6 9. O-O Nd7 10. Re1 Nc5 11. a4 Bd7 12. Bb3 Kh8 13. Ba3 Ne6 14. Bxe6?! { (3.11 → 2.09) Inaccuracy. Nxe5 was best. } (14. Nxe5 dxe5 15. Bxf8 Nxf8 16. Qd5 Ne6 17. Qxb7 Nc5 18. Qd5 Nxb3 19. cxb3 Be6 20. Qxe5 Bxb3 21. Reb1 f6 22. Qf4 Rb8 23. Qe3 a6) 14... Bxe6 15. Kh2 f5 16. Nxe5 Qf6 17. exf5 dxe5?? { (2.54 → 5.43) Blunder. Qxf5 was best. } (17... Qxf5 18. Nd3 Rae8 19. Bc1 b6 20. Be3 Bd7 21. Qd2 Kg8 22. a5 bxa5 23. c4 a4 24. Bxa7 Rxe1 25. Qxe1 h5) 18. Bxf8 Rxf8?! { (4.53 → 6.12) Inaccuracy. Qxf5 was best. } (18... Qxf5 19. Bc5 b6 20. Be3 Qf6 21. a5 Rd8 22. Qe2 Bd5 23. axb6 axb6 24. Rad1 Bc6 25. Rxd8+ Qxd8 26. Rd1 Qh4) 19. fxe6 Qxe6 20. Kg1 e4 21. Qd4 b6 22. c4 c5 23. Qxe4 Qf6 24. Qf3 Qd8 25. Rad1 Qb8 26. Qg3 Qc8? { (7.51 → Mate in 7) Checkmate is now unavoidable. Qxg3 was best. } (26... Qxg3 27. fxg3 Rf7 28. a5 Kh7 29. Re5 Rc7 30. axb6 axb6 31. Rd6 Rb7 32. g4 Kh8 33. Kf2 Kg8 34. Kf3 Kh7 35. Kg3 Kg8 36. Kf2) 27. Re7 Rg8 28. Rdd7 Qf8 29. Rf7 *