[Event "St Petersburg International Preliminary"]
[Site "St Petersburg"]
[Date "1914.05.02"]
[Round "8"]
[White "Tarrasch, Siegbert"]
[Black "Capablanca, Jose Raul"]
[Result "1/2-1/2"]
[ECO "C77"]
[Annotator "Tactical Analysis 4.1 (180s)"]
[PlyCount "117"]
[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 11,117,1,5,-7,8,0,0,0,0,0,0,0,2,0,0,0,0,0,-8,-12,-8,-16,-6,-25,17,-8,0,
0,0,-9,-8,-17,-9,-8,-9,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,
-8,-8,-9,-8,-8,-8,-13,-13,-35,-35,-26,-9,-9,-9,-62,-57,-45,-38,-49,-49,-77,-44,
-71,-75,-83,-38,-64,-76,-78,-75,-81,-81,-85,-70,-88,-89,-92,-92,-92,-84,-78,
-19,-27,0,0,-8,-9,0,0,0,0,0,0,8,8]} {Analiza Fat Fritz 2.0.} 1. e4 e5 2. Nf3
Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Nc3 Be7 6. d3 d6 7. d4 $146 {C77: Ruy Lopez: 3...
a6 4 Ba4 Nf6, unusual lines.} ({Predecessor:} 7. h3 b5 8. Bb3 Na5 9. O-O Nxb3
10. axb3 Bb7 11. b4 O-O 12. Bg5 h6 13. Bxf6 Bxf6 14. Nd5 g6 15. Nd2 Bg7 16. Nb3
Bc8 17. Na5 Bd7 18. Ra3 {1/2-1/2 (45) Duras,O-Cohn,E Telegram 1912}) 7... Bd7
8. Bxc6 Bxc6 9. Qd3 exd4 10. Nxd4 Bd7 11. O-O O-O 12. Re1 Re8 13. h3 h6 14. Qg3
{next Bxh6 is good for White.} Kh8 15. Bd2 Bf8 16. Qd3 c6 17. Rad1 Qe7 (17...
b5 $142) 18. Nf3 Be6 19. Bf4 {[%CAl Rf4d6]} Rad8 20. Qe3 d5 21. exd5 Nxd5 22.
Nxd5 Bxd5 23. Qxe7 Bxe7 24. Rxe7 Rxe7 25. c4 $1 {[#]} Re4 $1 {[%mdl 64] Double
Attack} 26. Be3 Rxc4 27. Ne5 Rb8 {aiming for ...Rc2.} 28. Nxc4 Bxc4 $11 {
[%mdl 4096] Endgame KRB-KRB} 29. a3 Bd5 30. Re1 Rd8 31. Bb6 Rd7 32. Re8+ Kh7
33. Kh2 Bc4 34. Rd8 Re7 35. Rd4 Bd5 36. a4 Re2 37. b4 a5 38. bxa5 Rc2 39. Rb4 (
39. Kg1 $11) 39... c5 $15 40. Rf4 Be6 41. Rf3 c4 42. Bd4 Ra2 43. Kg1 Rxa4 44.
Bc3 Ra2 (44... g5 $17 45. Kf1 Ra3) 45. Rg3 g5 46. Re3 Rc2 47. Bd4 Rc1+ 48. Kh2
Kg6 49. Kg3 Rd1 50. Bc3 Bd5 51. f3 Rc1 {[#] White must now prevent ...f5.} 52.
Bd4 Rc2 ({Better is} 52... Rd1 53. Bc3 f5 $17 {Pero no está nada claro, como
demuestra el siguiente ejemplo, una partida entre módulos a razón de 40
jugadas en 1 hora ¡sin finish!:} 54. Kf2 f4 55. Re2 Rd3 56. Be1 Ra3 57. Re5
Rd3 58. Re2 Rb3 59. Re5 Bf7 60. Rc5 Kf6 61. h4 gxh4 62. Bd2 Rb2 63. Ke1 Rc2 64.
Kd1 Bg6 65. a6 bxa6 66. Rc6+ Kf7 67. Rc7+ Ke6 68. Rc6+ Kf7 69. Rc7+ Ke8 70. Rc6
Bd3 71. Rxh6 c3 72. Be1 Rxg2 73. Bxc3 Be2+ 74. Ke1 Bxf3 75. Rxh4 Re2+ 76. Kf1
Rc2 77. Be1 Be2+ 78. Kf2 f3 79. Ke3 $11 {[#] con fortaleza inexpugnable.} Kd7
80. Ra4 Kc6 81. Ra1 Rc5 82. Ba5 Rh5 83. Bc3 Rd5 84. Be1 Re5+ 85. Kf2 Kb6 86.
Bc3 Rd5 87. Ra3 Bd1 88. Ra1 Be2 89. Bb4 Rd3 90. Be1 Kb5 91. Ra5+ Kb6 92. Ra1
Kb7 93. Kg3 Rd5 94. Ra5 Rd1 95. Bf2 Rc1 96. Bd4 Rd1 97. Bf2 Kc7 98. Be3 Rf1 99.
Bd4 Rc1 100. Kf4 Rd1 101. Bf2 Rh1 102. Kg3 Rb1 103. Ra2 Rd1 104. Ra5 Kb7 105.
Be3 Kc6 106. Kf2 Kc7 107. Ra2 Rf1+ 108. Kg3 Rh1 109. Ra3 Rf1 110. Ra5 Rb1 111.
Bd4 Rd1 112. Bf2 Kb7 113. Be3 Re1 114. Ra3 Rb1 115. Kf2 Rh1 116. Bc5 Kc6 117.
Bb4 Rh2+ 118. Ke3 Rh6 119. Ra5 Rh1 120. Rc5+ {[#] 1/2-1/2 (120) Dragon by
Komodo Chess 64-bit-Fat Fritz 2 Tenerife 2021}) 53. Ra3 f5 54. a6 $1 {The
position is equal.} f4+ 55. Kh2 bxa6 56. Rxa6+ Kf7 {And now ...Bxf3 would win.}
57. Kg1 h5 58. Rf6+ Ke7 59. Rf5 {[%mdl 64] Double Attack. Weighted Error
Value: White=0.07/Black=0.07} 1/2-1/2
