[Event "✅Class Notes: jeffreyashton's Study: Student - Ashton, Jeffrey"] [Site "https://lichess.org/study/wtuu8lp0/KGZMmwTM"] [Date "2019.08.31"] [White "Student"] [Black "Ashton, Jeffrey"] [Result "*"] [WhiteTeam "Letian Qu"] [Annotator "Ashton,Jeffrey"] [Variant "Standard"] [ECO "B34"] [Opening "Sicilian Defense: Accelerated Dragon, Exchange Variation"] [Source "https://lichess.org/study/wtuu8lp0/KGZMmwTM"] [Orientation "white"] 1. e4 { [%eval 0.24] } 1... c5 { [%eval 0.2] } 2. Nf3 { [%eval 0.21] } 2... Nc6 { [%eval 0.08] } 3. d4 { [%eval 0.15] } 3... cxd4 { [%eval 0.34] } 4. Nxd4 { [%eval 0.08] } 4... g6?! { [%eval 0.61] } { Inaccuracy. Best move was Nf6. } (4... Nf6 5. Nc3 e6 6. Be2 d6 7. Be3 Be7 8. Qd2 e5 9. Nb3) 5. Nxc6 { [%eval 0.12] } (5. Qf3 Nxd4) 5... bxc6 { [%eval 0.16] } 6. b3? { [%eval -0.92] } { Mistake. Best move was c4. } (6. c4 Nf6 7. Nc3 Bg7 8. Be2 Rb8 9. O-O d6 10. Qc2 O-O) (6. Qd4 Nf6 7. e5 Nd5 8. e6 Nf6 9. exf7+ Kxf7 10. Bc4+ d5) 6... Bg7 { [%eval -0.95] } 7. c3 { [%eval -0.85] } (7. Bc4 Bxa1) 7... Nf6 { [%eval -1.27] } 8. Bb2? { [%eval -2.45] } { Mistake. Best move was Bd3. } (8. Bd3 d5 9. Nd2 Qa5 10. b4 Qc7 11. O-O a5 12. b5 O-O) 8... Nxe4 { [%eval -2.27] } 9. Qf3?! { [%eval -3.18] } { Inaccuracy. Best move was Nd2. } (9. Nd2 Nc5) 9... d5 { [%eval -3.16] } 10. Bd3 { [%eval -3.03] } 10... Nc5 { [%eval -3.01] } 11. b4 { [%eval -3.63] } 11... Na4 { [%eval -3.12] } { To gain the Bishop pair or win a pawn. } (11... Bg4) 12. Qe2 { [%eval -3.62] } (12. Bc1 Nxc3) 12... O-O { [%eval -3.56] } 13. O-O { [%eval -3.71] } 13... e5 { [%eval -3.56] } 14. Ba3 { [%eval -3.39] } 14... e4 { [%eval -3.28] } 15. Ba6?! { [%eval -4.28] } { Inaccuracy. Best move was Bc2. } (15. Bc2 Nb6) 15... Bxc3 { [%eval -4.17] } 16. Nxc3?! { [%eval -6.33] } { Inaccuracy. Best move was Bxc8. } (16. Bxc8 Bxa1 17. Bb7 Qb6 18. Bxa8 Rxa8 19. Qc2 Qb5 20. Rc1 Rc8 21. g3 Bd4 22. Qd1 Bg7) 16... Nxc3 { [%eval -6.24] } 17. Qc2 { [%eval -6.0] } 17... Bxa6 { [%eval -5.9] } 18. Rfe1 { [%eval -7.67] } 18... d4 { [%eval -7.63] } 19. Bb2 { [%eval -7.93] } 19... Bd3 { [%eval -7.73] } 20. Qb3 { [%eval -9.06] } 20... Ne2+ { [%eval -8.92] } 21. Kh1 { [%eval -9.05] } 21... Nf4 { [%eval -8.34] } 22. Rad1 { [%eval -8.7] } 22... Qg5 { [%eval -8.61] } 23. g3 { [%eval -12.25] } 23... Be2 { [%eval -8.02] } 24. Rd2 { [%eval -18.69] } 24... Bf3+ { [%eval -17.52] } 25. Kg1?? { [%eval #-11] } { Checkmate is now unavoidable. Best move was Qxf3. } (25. Qxf3 exf3) 25... Nh3+ { [%eval #-10] } 26. Kf1 { [%eval #-10] } 26... Qxd2 { [%eval #-9] } 27. Bxd4 { [%eval #-9] } 27... Qxd4 { [%eval #-11] } 28. Re3 { [%eval #-10] } 28... Qd2 { [%eval #-9] } (28... Qa1+ 29. Re1 Qxe1+ 30. Kxe1 Rad8 { [%cal Gd8d7,Gf8d8,Gd7d1] } 31. b5 Rd6 32. Kf1 Rfd8 { [%csl Gh3,Gf3][%cal Gd6d1] }) (28... Qxe3 29. fxe3 { [%csl Gf3,Gh3,Ge2,Gf2,Gg2] } 29... Rfd8 { [%cal Gd8d7,Ga8d8] }) 29. Rxf3 { [%eval #-9] } 29... exf3 { [%eval #-8] } 30. Qxf3 { [%eval #-8] } 30... Rae8 { [%eval #-7] } 31. Kg2 { [%eval #-7] } 31... Nxf2 { [%eval #-6] } 32. Qxf2 { [%eval #-5] } 32... Re2 { [%eval #-4] } 33. Qxe2 { [%eval #-4] } 33... Qxe2+ { [%eval #-3] } 34. Kh3 { [%eval #-3] } 34... Rd8 { [%eval #-2] } 35. Kh4 { [%eval #-1] } 35... Rd4+ { [%eval #-2] } 36. Kg5 { [%eval #-2] [#] } 36... Kg7 { [%eval #-1] } 37. h4 { [%eval #-1] } 37... f6# { 0-1 Black wins by checkmate. } *