[Event "St Petersburg International Preliminary"]
[Site "St Petersburg"]
[Date "1914.04.28"]
[Round "5"]
[White "Rubinstein, Akiba"]
[Black "Alekhine, Alexander"]
[Result "0-1"]
[ECO "E43"]
[Annotator "Tactical Analysis 4.1 (180s)"]
[PlyCount "56"]
[EventDate "1914.04.21"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "RUS"]
[SourceTitle "Tarrasch"]
[Source "ChessBase"]
[SourceDate "2018.10.02"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.02"]
[SourceQuality "1"]
{[%evp 20,56,95,45,69,53,218,-17,-15,-15,-15,-15,-43,-23,-15,-15,-15,-15,-15,
-15,-15,-15,-15,-15,-15,-14,-23,-446,-437,-435,-400,-909,-904,-913,-902,-959,
-959,-1463,-1452]} {Analizada por Fat Fritz 2.0.} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
4. e3 b6 5. Bd3 $146 (5. Nf3 Bb7 6. Qb3 Qe7 7. a3 Bxc3+ 8. Qxc3 d6 9. b4 Nbd7
10. Bb2 a5 11. Be2 axb4 12. axb4 Rxa1+ 13. Bxa1 O-O 14. O-O Ne4 15. Qc2 f5 16.
Nd2 Nxd2 17. Qxd2 Ra8 18. Bc3 Qe8 19. d5 e5 20. f4 Bc8 21. Qb2 Qe7 22. fxe5
Nxe5 23. Bd4 Bd7 24. Ra1 Re8 25. Ra7 Qd8 26. Qa1 f4 27. exf4 Ng6 28. Bf3 Nxf4
29. Bxg7 Qg5 30. Bh8 Nd3 31. h4 Qg3 32. Ra8 Bc8 33. Be4 Qf2+ 34. Kh2 Qxh4+ 35.
Kg1 Ne5 36. Bxe5 Qxe4 37. Bh8 Qe3+ 38. Kh2 Qf4+ 39. Kg1 Qg3 40. Bc3 Qe3+ 41.
Kh1 Qf4 42. Qd1 Qh6+ 43. Kg1 Qe3+ 44. Kh1 Qh6+ 45. Kg1 Qe3+ 46. Kh1 Qxc3 47.
Rxc8 Rxc8 48. Qg4+ Kf7 49. Qxc8 Qxc4 50. Qf5+ {½-½ (50) Bernstein,
O-Nimzowitsch,A St Petersburg - Prel (4) 1914}) 5... Bb7 6. f3 {Ya este plan
sí que era totalmente nuevo entonces...} ({Lo más natural era la temática}
6. Nf3) 6... c5 7. a3 Bxc3+ 8. bxc3 d5 9. Ne2 O-O 10. O-O Nbd7 11. Ng3 ({
White should try} 11. cxd5 $16 exd5 12. Bd2) 11... Qc7 {E43: Nimzo-Indian:
Rubinstein: 4...b6.} 12. cxd5 exd5 $2 {[#]} (12... Nxd5 $14 13. c4 Ne7) 13. e4
$2 (13. Ra2 $1 $18 {Fat Fritz 2.0.} Qd6 14. Re2 $1 {Gligoric, en el
monográfico sobre Alekhine de Chessbase.} g6 15. Bb2 Rac8 16. e4 Qf4 17. a4 a6
18. e5 Ne8 19. Nh1 Qh4 20. Nf2 Ng7 21. Ng4 Rb8 22. Bc1 Bc6 23. Bh6 b5 24. Qc1
Ne6 25. h3 bxa4 26. f4 Kh8 27. f5 gxf5 28. Rxf5 cxd4 29. Bxf8 Rxf8 30. Ref2 $18
) 13... cxd4 $11 {The position is equal.} 14. cxd4 Qc3 15. Be3 dxe4 16. fxe4 {
[#]} ({Much weaker is} 16. Nxe4 Nxe4 17. Rc1 Qxa3 $17) 16... Ba6 $1 17. Bxa6
Qxe3+ {[%mdl 64] Double Attack} 18. Kh1 $1 {Black must now prevent e5.} Nxe4 {
Hoping for ...Nf2+.} 19. Nf5 $1 {[%CAl Rf5e3]} Nf2+ 20. Rxf2 $1 {[%mdl 64]
Remove Defender} Qxf2 21. Qg4 {[%csl Gf5][%CAl Rg4g7]} g6 22. Rf1 Qb2 {
Strongly threatening ...Rae8.} 23. Nh6+ $2 {[%mdl 8192]} (23. Ne7+ $11 Kg7 24.
Qxd7 Qxa3 25. Bc8 Qd3 26. Kg1 Qe3+ 27. Rf2 Qe1+ 28. Rf1 Qe3+ $11) 23... Kg7 $19
24. Nxf7 {[#]} Qb3 $1 25. d5 (25. Ng5 $142 Rxf1+ 26. Bxf1 Nf6 27. Qf3 Qxf3 28.
gxf3 Nd5 $19) 25... Nf6 {[%mdl 64] Double Attack. Black is clearly winning.} ({
Stronger than} 25... Rxf7 26. Rxf7+ Kxf7 27. Qxd7+ Kf8 28. Qd6+ Kg8 29. Qe6+
Kh8 30. Qf6+ Kg8 31. Qe6+ Kh8 32. Qf6+ Kg8 33. Qe6+ $11) 26. Qd4 Rxf7 27. Bc4
Qa4 28. g4 Rc8 {Weighted Error Value: White=0.98/Black=0.20} 0-1
