[Event "St Petersburg International Final"]
[Site "St Petersburg"]
[Date "1914.05.17"]
[Round "6"]
[White "Alekhine, Alexander"]
[Black "Lasker, Emanuel"]
[Result "0-1"]
[ECO "C68"]
[Annotator "Tactical Analysis 4.1 (180s)"]
[PlyCount "178"]
[EventDate "1914.05.10"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "RUS"]
[SourceTitle "Lasker"]
[Source "ChessBase"]
[SourceDate "2002.01.23"]
[SourceVersion "1"]
[SourceVersionDate "2002.01.23"]
[SourceQuality "1"]
{[%evp 16,178,17,-8,0,-12,0,0,8,0,10,0,0,-30,0,0,0,0,13,0,22,0,0,-12,-19,-20,
-20,-48,-8,-8,-9,0,-4,-4,0,-12,-12,-19,-13,-17,0,0,0,0,0,0,0,0,2,8,8,0,0,0,0,0,
0,0,0,0,8,9,0,0,0,0,0,-303,-292,-271,-262,-245,-118,-90,-81,-162,-60,-60,-60,
-134,-116,-246,-233,-605,-602,-651,-545,-539,-262,-271,-116,-886,-886,-886,
-877,-918,-918,-886,-886,-877,-844,-848,-836,-836,-827,-827,-772,-779,-763,
-802,-658,-701,-727,-717,-671,-682,-658,-632,-571,-812,-805,-812,-762,-651,
-659,-831,-752,-812,-792,-732,-706,-825,-845,-929,-950,-900,-948,-945,-853,
-894,-890,-890,-890,-890,-875,-879,-869,-861,-853,-853,-845,-845,-845,-845,
-837,-837,-837,-837,-820,-811,-786,-699,-670,-2093,-550]} {Analizada por Fat
Fritz 2.0.} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d4 exd4 7.
Qxd4 Qxd4 8. Nxd4 Bd6 9. Be3 {[#]} Ne7 $146 {C68: Ruy Lopez: Exchange
Variation, sidelines.} ({Predecessor:} 9... Bd7 10. O-O-O O-O-O 11. Nb3 Ne7 12.
Nc5 Ng6 13. f3 Rhe8 14. Nxd7 Rxd7 15. Rhe1 Red8 16. Ne2 Nh4 17. Rg1 Bxh2 18.
Rxd7 Rxd7 19. Rh1 Nxg2 20. Bd2 Be5 21. c3 g5 22. Rh6 c5 23. Kc2 Kd8 {0-1 (23)
Von Bardeleben,C-Salwe,G Prague 01-International Masters (6) 1908}) 10. O-O-O
O-O 11. Nb3 Ng6 {[#] The position is equal.} 12. Bc5 Bf4+ 13. Kb1 Re8 14. Rhe1
b6 15. Be3 Be5 16. Bd4 $1 Nh4 17. Rg1 Be6 18. f4 Bd6 19. Bf2 Ng6 20. f5 {
Black must now prevent Nd4.} Bxb3 21. axb3 Nf8 22. Bxb6 Bxh2 23. Rh1 cxb6 24.
Rxh2 b5 25. Re1 Nd7 26. Nd1 a5 27. Rh3 b4 28. Nf2 Nc5 29. Rhe3 a4 30. bxa4 Nxa4
31. e5 fxe5 32. Rxe5 Reb8 33. Ne4 b3 34. Re2 (34. Rc1 {looks sharper.} Rb4 35.
Re7 bxc2+ 36. Rxc2 Rab8 37. Kc1) 34... Nb6 35. cxb3 Nd5 36. g4 h6 37. g5 hxg5
38. Nxg5 Nf6 39. Re7 {And now Ne6 would win.} Rxb3 40. Rg2 (40. Ne6 {is
interesting.} Rg3 41. Rc2 Rb8 42. Rxc6 Rg1+ 43. Rc1) 40... Nd5 {[#]} 41. Rd7 $4
{[%mdl 8192]} (41. Re1 $11) 41... Rd3 $3 $19 {[%CAl Rd3d1]} 42. Rxd5 Rxd5 {
[%mdl 4096] Endgame KRR-KRN} ({Much less strong is} 42... cxd5 43. Ne6 $17) 43.
Ne6 Kf7 ({Resist} 43... Rxf5 44. Rxg7+ Kh8 45. Rc7 $17) (43... Rd7 $1 $19 {
and Black stays clearly on top. aiming for ...Ra5.} 44. f6 g6) 44. Rxg7+ $17
Kf6 45. Rc7 (45. Rg1 $17) 45... Rd6 (45... Ra6 $19 46. Rc8 Ke7) 46. Nc5 $15
Kxf5 {...Ke5 is the strong threat.} 47. Rf7+ {Black continues to play with
concentration.} ({White should try} 47. Nb7 $15 Rg6 48. Kc2) 47... Ke5 $17 {
Threatens to win with ...Rh8.} 48. Kc2 (48. Rh7 $17) 48... Rh6 $1 $19 49. Nd3+
$2 (49. Rg7) 49... Kd6 50. Rf5 Rb8 51. Kc3 Kc7 (51... Rh3 $142 52. Rf6+ Kc7)
52. Rf7+ Kb6 {[#]} (52... Kd6 $19 {has better winning chances.} 53. b4 Rbh8)
53. Rd7 $2 {[%mdl 8192]} (53. Ne5 $17) 53... Rh3 {Black is clearly winning.}
54. Rd4 Rbh8 55. Rb4+ Kc7 56. Kc2 R8h4 57. Rb3 Rh2+ 58. Kc3 R4h3 59. Rb4 Rh5
60. Rg4 R2h3 61. Kc2 Rd5 62. Nf4 Rc5+ 63. Kb1 Rh1+ 64. Ka2 Ra5+ 65. Kb3 Rb5+
66. Kc3 Kb6 67. Nd3 Rh3 68. Kc2 Rd5 69. Rb4+ Kc7 70. Rb3 Rh2+ 71. Kc3 Kd6 72.
Ra3 Rg2 73. Ra1 Rg3 74. Rd1 Kc7 75. Rd2 Kb6 76. Rd1 Kb5 77. Kc2 Kc4 {[%CAl
Rd5d3] [#]} 78. b3+ Kb5 79. Rd2 Rh3 80. Rd1 Rh2+ 81. Kc3 Rd8 82. Rg1 Rh3 83.
Rd1 Rdh8 84. Rg1 R8h5 85. Kc2 Rd5 86. Rd1 Rg5 87. Rd2 Rhg3 88. Nc1 Rg2 89. Ne2
Kb6 {Weighted Error Value: White=0.41/Black=0.19} (89... Ka5 $142 90. Kd1 Kb4
91. Rd4+ Kxb3 92. Rd3+ Kb4 93. Rd4+ Kb3 94. Rd3+ Kb4 95. Rd4+ Kc5) 0-1
