[Event "St Petersburg International Final"] [Site "St Petersburg"] [Date "1914.05.18"] [Round "7"] [White "Tarrasch, Siegbert"] [Black "Alekhine, Alexander"] [Result "0-1"] [ECO "C12"] [Annotator "Tactical Analysis 4.1 (180s)"] [PlyCount "98"] [EventDate "1914.05.10"] [EventType "tourn"] [EventRounds "10"] [EventCountry "RUS"] [SourceTitle "Tournaments"] [Source "ChessBase"] [SourceDate "2004.03.11"] [SourceVersion "1"] [SourceVersionDate "2004.03.11"] [SourceQuality "1"] {[%evp 14,98,0,-15,-6,-10,0,0,0,-33,-32,-62,-71,-61,-61,-85,-74,-93,-60,-52, -41,-50,-41,-89,-96,-100,-102,-124,-94,-204,-209,-221,-218,-355,-362,-441,-436, -439,-427,-440,-451,-441,-424,-453,-448,-447,-447,-439,-425,-410,-311,-311, -285,-339,-316,-489,-467,-537,-509,-513,-492,-674,-654,-847,-848,-828,-808, -1076,-750,-762,-736,-1060,-1006,-1026,-1025,-1015,-1007,-997,-976,-916,-931, -912,-866,-781,-672,-1215,-1162]} {Analizada por Fat Fritz 2.0.} 1. d4 e6 2. e4 d5 3. Nc3 Nf6 4. Bg5 Bb4 5. exd5 (5. e5 h6 6. exf6 hxg5 7. fxg7 Rg8 8. h4 gxh4 9. Qg4 Be7 10. g3 c5 11. O-O-O (11. gxh4 cxd4 12. h5 $1 dxc3 13. h6 cxb2 14. Rb1 Qa5+ 15. Ke2 Qxa2 16. h7 Qxb1 17. hxg8=Q+ Kd7 18. Qxf7 Qxc2+ 19. Kf3 Nc6 $1 20. Qgxe6+ Kc7 21. Qf4+ Kb6 22. Qee3+ Bc5 23. g8=Q b1=Q {[#]} 24. Rh6 $3 Qxf1 25. Qb4+ Qb5 26. Qd8+ Ka6 27. Qea3+ {[#] 1-0 . Alekhine-Desconocido, Moscú 1915.}) 11... Nc6 12. dxc5 Qa5 13. Kb1 e5 14. Qh5 Be6 15. Nxd5 Bxd5 16. Rxd5 Nb4 17. Rxe5 Qxa2+ 18. Kc1 O-O-O 19. Bd3 Qa1+ 20. Kd2 Qxb2 21. Ke3 Bf6 22. Qf5+ Kb8 23. Re4 Rxd3+ 24. cxd3 Bd4+ 25. Kf4 Qxf2+ {0-1 (25) Grigoriev,N-Alekhine,A Moscow Chess Club - ch (6) 1915}) 5... Qxd5 6. Bxf6 Bxc3+ 7. bxc3 gxf6 8. Nf3 b6 {C12: French: Classical System: McCutcheon Variation.} 9. g3 {[#]} Bb7 (9... Nd7 $1 10. Bg2 (10. a4 $11) 10... Ba6 11. Nh4 $2 (11. a4 $15) 11... Qa5 $17) 10. Bg2 Qe4+ $146 {The position is equal.} ({Predecessor:} 10... Qa5 11. Qd3 Nd7 12. O-O c5 13. Nd2 Bxg2 14. Kxg2 cxd4 15. cxd4 O-O 16. c4 Rfd8 17. Rfd1 Rac8 18. Qe2 f5 19. Qe3 Nf8 20. d5 Qc5 21. Qg5+ Ng6 22. dxe6 fxe6 23. Nf3 Qc7 24. h4 Rxd1 25. Rxd1 Qg7 26. Rd8+ Rxd8 27. Qxd8+ Qf8 28. Qc7 Qe7 29. Qb8+ Nf8 30. h5 Kg7 31. Ne5 Kh6 32. Nc6 Qg7 33. f4 Nd7 34. Qe8 Qb2+ 35. Kh3 Qe2 36. Qxd7 Qf1+ 37. Kh2 Qf2+ {½-½ (37) Betins,K-Alekhine/Bernshteyn/Goncharov Moscow corr Russia 1909}) 11. Kd2 {Hoping for Ne1.} Qg6 12. Nh4 Qh6+ 13. f4 Nc6 $1 14. Qe2 O-O-O {[%CAl Ba8d8,Bd8d5,Bd5a5][%mdl 32]} 15. Kc1 Kb8 16. Kb2 Na5 17. Bxb7 Nxb7 {[#]} 18. Rad1 (18. Rhe1 $15) 18... Rd5 $17 {White is on the road to losing.} 19. c4 Ra5 20. Ng2 Rd8 21. Ne3 (21. c3 $17) 21... Qf8 $19 22. c5 bxc5 23. d5 (23. dxc5 $142 Qxc5 24. Rxd8+ Nxd8 25. Rb1) 23... c4 $1 24. Nxc4 Qb4+ 25. Ka1 Qc3+ 26. Nb2 Rd6 {[#] ( -> ...Rb6)} 27. Qc4 Rda6 $1 {[%mdl 512]} 28. dxe6 (28. Qxc3 $2 {gets mated.} Rxa2+ 29. Kb1 Ra1#) (28. Kb1 Rxa2) 28... fxe6 29. Kb1 (29. Qxc3 $2 Rxa2+ 30. Kb1 Ra1#) 29... Rxa2 30. Qxa2 (30. Qxc3 $2 { leads to mate.} Ra1#) ({But not} 30. Rd8+ $2 Nxd8 31. Qxa2 Rxa2) 30... Rxa2 31. Kxa2 Qxc2 {[#]} 32. Rc1 Qd2 33. Kb1 Nd6 34. Rc2 (34. Rhd1 $142 Qxh2 35. Rd3) 34... Qb4 {Black is clearly winning.} 35. Rd1 Nb5 36. Rd8+ Kb7 37. Rcd2 e5 38. fxe5 fxe5 39. Kc1 Nd4 40. Rd3 Qe1+ 41. Rd1 Qe4 {[%csl Gd4][%CAl Re4c2]} 42. Rd3 Qh1+ 43. Rd1 Qxh2 {[%csl Gd4][%CAl Rh2c2]} 44. Kb1 Qxg3 45. Rd3 Qe1+ 46. Ka2 h5 47. Re8 Qe4 48. Rc3 Nb5 49. Rc5 Qb4 {[#] Weighted Error Value: White=0.55/ Black=0.15} 0-1