[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.06"]
[Round "1"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1-0"]
[ECO "D31"]
[Annotator "ChessBase"]
[PlyCount "51"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6 $2 (5... Bf5) 6. e4 Bb4 (6...
c5 7. e5 Nd5 8. Bxc4 Nc6 9. O-O cxd4 10. Nxd4 $1 Nxc3 (10... Nb6 11. Bb5 Bd7
12. Nxc6 Bxc6 13. Qg4 $16) 11. bxc3 Nxe5 12. Bb5+ Bd7 13. Nxe6 $1 fxe6 14. Qh5+
Nf7 15. Rd1 $18 {Mьller-Meesen/corr/1936}) 7. e5 (7. Bg5 $6 Bxc3+ $1 (7... c5
$1) 8. bxc3 Qa5 $17 {Bogoljubow}) (7. Qc2 b5 8. Be2 Nbd7 9. O-O $36) 7... Nd5
$2 (7... Ne4 8. Qc2 Qd5 9. Be2 c5 (9... O-O 10. O-O Nxc3 11. bxc3 Be7 12. Nd2
c5 13. Bxc4 Qd8 14. Qe4 {Alekhine-Helling,K/Dresden/1936/1:0/40}) (9... b5 10.
O-O Bxc3 11. bxc3 O-O 12. Ne1 $16 {Alekhine}) 10. O-O Nxc3 11. bxc3 cxd4 12.
Nxd4 (12. cxd4 c3 13. Bd2 $1 $16 {/+- Alekhine-Euwe(19)/Wch16-NLD(Zeist)/1935/
1:0/57}) 12... Bc5 13. Nf3 Nd7 14. Rd1 Qc6 15. Bxc4 {Alekhine-Bogoljubow,E/
Nottingham/1936/1:0/47}) 8. Bd2 Bxc3 (8... b5 9. Ne4 Be7 10. b3 $1 $16 {
Alekhine} Nd7 11. bxc4 bxc4 12. Bxc4 N7b6 13. Bb3 (13. Be2 a5 $14 {[%cal Yd5b4]
/\Nb4}) 13... Ba6 $14 {Kotov}) 9. bxc3 b5 10. Ng5 $1 f6 (10... h6 11. Ne4 O-O
12. Qh5 (12. Nd6 $16) 12... f6 (12... f5 13. Nd6 {[%cal Yg2g4] /\g4->}) 13. Qg6
Kh8 14. Nd6 Qd7 15. h4 $1 $40) (10... Nxc3 $4 11. Qf3 $18) (10... Qe7 $142) (
10... O-O 11. Qb1 $1 {[%cal Ya4b5] /\12.ab}) 11. exf6 $1 (11. Ne4 fxe5 12. dxe5
O-O) 11... Nxf6 $2 (11... gxf6 $1 12. Qh5+ Kd7 13. Ne4 Qe8 14. Qh4 Qg6 $14 {
Bolbochan-Letelier/Mar del Plata/1952}) (11... Qxf6 $2 12. axb5 cxb5 13. Ne4
Qe7 (13... Qh4 14. Nd6+ Kd7 15. g3) 14. Bg5 Qc7 15. Qh5+ g6 16. Qh6 $16) 12.
Be2 a6 (12... O-O 13. axb5 h6 (13... cxb5 14. Bf3 Nd5 15. Qb1) 14. b6 $1 Qxb6 (
14... hxg5 15. Rxa7 $1 $18) 15. Nf3 Ba6 16. Ne5 $18) 13. Bf3 $1 h6 $8 (13...
Ra7 14. Bf4 Rb7 (14... Qb6 15. Bd6 $16 {/+-() Kotov}) 15. axb5 axb5 16. Ra8 $40
{+- Alekhine} Bd7 17. Bd6 Qc8 18. Bh5+ g6 19. Qf3 Nd5 20. Qf7+ Kd8 21. Bf3 Re8
22. Qf6+ Nxf6 23. Nf7#) (13... Nd5 14. Qc2 g6 15. Nxh7 Rxh7 16. Qxg6+ Rf7 17.
Bh5 Qf6 (17... Raa7) 18. Qg8+ $18) 14. Bh5+ Nxh5 (14... Ke7 15. Nf7 Qe8 16.
Nxh8 Nxh5 17. Qg4 $18) 15. Qxh5+ Kd7 16. Nf7 Qe8 17. Qg6 Rg8 18. Bf4 Bb7 (18...
Rf8 19. Ne5+ Kd8 20. Qe4 {[%cal Ya4b5,Ye5c6] /\21.ab, 21.Nc6}) 19. Bg3 Ke7 20.
Bd6+ Kd7 21. O-O {[%cal Yf2f5] /\f4-f5} c5 22. dxc5 Bd5 (22... Nc6 23. Rfd1)
23. axb5 axb5 24. Rxa8 Bxa8 25. Ra1 Nc6 (25... Bb7 26. Ra7 Kc8 27. Bg3 $18 {
[%cal Yf7d6] /\Nd6}) 26. Ne5+ $1 (26. Ne5+ $1 Nxe5 (26... Kc8 27. Rxa8+) 27.
Ra7+ Kc6 28. Qe4#) 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.07"]
[Round "2"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "1/2-1/2"]
[ECO "E23"]
[Annotator "ChessBase"]
[PlyCount "101"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 (5... Na6 6. a3 Bxc5 7. Nf3
b6 {Elikases-Botvinnik/Moscow/1936}) 6. Nf3 Bxc5 (6... Ne4 7. Bd2 Nxd2 (7...
Nxc5 8. Qc2 f5 9. a3) 8. Nxd2 Bxc5 9. e3 (9. g3 $142 {/\10.Bg2, 11.0-0}) 9...
O-O 10. Be2 f5 11. O-O-O b6 12. a3 $2 (12. Nf3 $142) 12... Bb7 13. Bf3 $6 Qh4
$1 14. g3 {ץf3} Qf6 15. Qa4 $6 (15. Qc2 $142) 15... a6 $1 16. Qc2 (16. Nb3 b5
$1 17. cxb5 axb5 18. Qxb5 (18. Qh4 g5 {/\19... Ba3}) 18... Bxa3 $1 {Ftacnik})
16... Be7 17. Kb1 (17. Na4 b5 18. Nb6 Rad8 19. c5 d6 $1 $40 {פb6}) 17... b5 $1
18. c5 (18. cxb5 axb5 19. Nxb5 Rfb8 {/\20... Ba6 21.Nc3 Ba3} 20. Nc3 Bxa3 21.
bxa3 Nd4 $1 22. exd4 Be4+ $19) 18... b4 19. axb4 Nxb4 20. Qb3 Bxf3 21. Nxf3
Rab8 22. Na4 $1 f4 $1 23. exf4 Qf5+ 24. Kc1 Bxc5 $40 {Najdorf}) (6... O-O 7.
Bg5 Qa5 $5 8. Bxf6 gxf6 9. Rc1 {N} Bxc5 10. e3 (10. g3 $5) 10... b6 11. Be2 Bb7
12. O-O Be7 13. Rfd1 Ne5 $5 14. Ne1 (14. Nxe5 Qxe5 15. Rd4 Bd6 {/\ Bc6}) (14.
Nb5 Nxf3+ 15. Bxf3 Bxf3 16. gxf3 Rfd8 17. Qc3 $1) 14... Bc6 15. a3 Rad8 16. Qa2
Ng6 $8 17. Rd4 (17. Nd5 Bxd5 $8 18. cxd5 Rc8 $1 $10 {/\} 19. d6 $4 Bxd6) 17...
Qe5 18. Rcd1 f5 19. Bf3 a6 20. Qb3 Qa5 21. Qc2 Bf6 22. R4d3 Qe5 $8 (22... Ne5
$2 23. b4 Qxa3 24. Nd5 $18) 23. Rd6 Be7 24. R6d2 {Piket-Wirthenson/Hamburg/1991
} Qg7 $10) 7. Bg5 h6 (7... b6 8. e4 Be7 {N} (8... Nd4) 9. Be2 Bb7 10. e5 Ng4
11. Bf4 $1 f5 (11... Qb8 $5 12. Rd1 $5 (12. Qb5 $2 Bc5 13. Ne4 a6 $17) (12. Nb5
$5 Ngxe5 13. Nxe5 Nxe5 14. Qg3 Bf6 15. O-O $44) 12... Ngxe5 13. Nxe5 Nxe5 14.
Qb5 Bf6 $8 15. Bxe5 Bxe5 16. Qxd7+ $13) 12. exf6 Nxf6 13. O-O O-O 14. Bg3 Nh5
15. Rad1 {/\ Rd2, Rfd1+/=|^[+]  Akopian,V-Shneider,A/URS-ch /1991}) 8. Bxf6
Qxf6 9. e3 b6 10. Be2 Bb7 11. Ne4 Qe7 12. O-O O-O 13. Rad1 Rfd8 14. a3 Rac8 15.
Qc2 d5 16. cxd5 exd5 17. Nxc5 bxc5 18. Rfe1 d4 19. Bd3 dxe3 20. Rxe3 Qf6 21.
Rde1 (21. Qxc5 Nd4 $17) 21... Nd4 22. Nxd4 cxd4 23. R3e2 (23. Qxc8 $2 dxe3 $19)
23... g6 (23... Qg5 24. f4 Qg4 $2 (24... Qh4 $5 $14) 25. Bf5 $18) 24. Qd2 Ba6
$1 25. Bxa6 (25. h3 $142) 25... Qxa6 26. Qxh6 d3 (26... Qxe2 $6 27. Rxe2 d3 28.
Re6 $1 $10 (28. Re1 $2 d2 29. Rd1 (29. Kf1 $5) (29. Re8+ Rxe8 30. Qxd2 Rc2 $19)
29... Rc1 30. Rxc1 d1=Q+ 31. Rxd1 Rxd1#)) 27. Rd2 Re8 28. Red1 (28. Rxe8+ Rxe8
29. Kf1 (29. h3 Re1+ 30. Kh2 Qd6+ 31. g3 (31. f4 Qd4 $19) 31... Qd5 $19 (31...
Qc6 $19)) 29... Qc4 30. g3 Qc6 $19 (30... Qc1+ 31. Kg2 Re2 $19)) 28... Rc2 (
28... Re2 29. g3) 29. h3 Qf6 30. Kh1 {[%cal Yd2d3] /\31.Rd3} Rxb2 31. f3 $6 (
31. Rxd3 Rxf2 (31... Qxf2 32. Rg1) 32. Rg3 Rf1+ 33. Rxf1 Qxf1+ 34. Kh2 Re1 35.
Rc3 Qf5 36. Re3 $10 {Kotov}) 31... Rxd2 32. Qxd2 Qd4 {/\33... Re2} 33. Qb4 (33.
Qxd3 $4 Re1+ $19) 33... Qf2 (33... Qxb4 34. axb4 $10) 34. Kh2 {[%cal Yd1d3] /
\35.Rd3} (34. Rxd3 $4 Qf1+) 34... Re2 35. Qb8+ Kg7 {[%cal Re2e1] /\36... Re8}
36. Qg3 $8 Qd4 37. Qg4 Qe3 38. Qg3 d2 {[%cal Re2e1] /\39... Re1-+} 39. f4 Qe4
40. f5 Kh6 $2 (40... Qc2 $1 $19 41. f6+ (41. fxg6 f5 $19 (41... fxg6 $1 42. Qd6
Qxd1 43. Qc7+ Kf6 $19 {Kotov})) 41... Kh7 $1 42. Qd6 (42. Qh4+ Kg8 43. Qh6 Qc7+
44. Kg1 Qc5+ 45. Kh2 Qe5+ 46. Kg1 Qxf6 $19) 42... Qxd1 43. Qf8 Rxg2+ 44. Kxg2
Qe2+ 45. Kg3 Qe5+ 46. Kf2 d1=N+ 47. Kf1 Qxf6+ $19) 41. fxg6 fxg6 42. h4 Qd5 43.
Qg4 Qe5+ 44. Qg3 Qd5 45. Qg4 Re4 46. Qg5+ Qxg5 47. hxg5+ Kxg5 48. Rxd2 Ra4 49.
Rd3 Kf4 50. Rh3 g5 51. Rb3 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.09"]
[Round "3"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1/2-1/2"]
[ECO "D17"]
[Annotator "ChessBase"]
[PlyCount "140"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 (6. e3 Na6 7. Bxc4
Nb4 8. O-O e6 {Lasker}) 6... e6 7. f3 c5 (7... Bb4 8. Bg5 $14 (8. e4 Bxe4 9.
fxe4 Nxe4 10. Bd2 Qxd4 11. Nxe4 Bxd2+ 12. Nxd2 $1 {N} Qxe5+ 13. Be2 b5 14. axb5
cxb5 15. Ra5 $1 $16 {Khalifman-Ehlvest/URS-ch/1988})) 8. dxc5 (8. e4 cxd4 (8...
Qxd4 9. Qxd4 cxd4 10. Nb5 $16) 9. Bxc4 $5 {N} Qd6 $6 (9... dxc3 $4 10. Qxd8+
$18) (9... Nbd7 10. Nxf7 $1 $16) (9... Qc7 10. Bb5+ Nc6 11. Qxd4 $16 {/\} Rd8
12. Qxa7 Qxe5 13. Qxb7) (9... Nc6 10. Nxc6 bxc6 11. Ne2 $5 Bg6 12. Qxd4 $14) (
9... Bb4 10. O-O Bg6 11. Bb5+ $44) 10. Bb5+ Nbd7 (10... Nc6 11. Nc4 $1 (11.
Nxc6 bxc6 12. exf5 cxb5 13. Nxb5 Qe5+ $13) 11... Qc5 (11... Qd7 12. Ne2 Bg6 13.
Ne5 $16) 12. b4 $1 Qxb4 13. Rb1 $1 $16) 11. Nc4 $1 (11. Bf4 dxc3 $1 12. Nxd7
Qxf4 13. Nxf6+ (13. Nb6+ Ke7 14. Nxa8 cxb2 15. Rb1 Nxe4 $1 16. fxe4 Qxe4+ 17.
Kf2 Kf6 $19) 13... Ke7 14. exf5 cxb2 15. Rb1 Kxf6 $17) (11. Nxd7 Nxd7 12. exf5
dxc3 13. Qxd6 Bxd6 $10) 11... Qc5 (11... Qc7 12. Qxd4 Bg6 13. Bg5 $16) 12. b4
$1 Qc7 (12... Qxb4 13. Qxd4 Bg6 (13... e5 14. Qd2 $1 $18) 14. Ba3 Qb3 15. Bxf8
Rxf8 16. Rb1 Qc2 17. Ne3 $18) 13. Qxd4 $16 Bg6 {Khalifman-Salov/Wijk aan Zee/
1991} (13... e5 14. Nxe5 a6 (14... O-O-O 15. Nxf7 $18) 15. Bf4 $1 O-O-O (15...
axb5 16. Nxb5 Qc2 17. exf5 $18) 16. Nxd7 Qxf4 17. Ne2 $18) (13... Bxb4 14. exf5
a6 (14... O-O-O 15. Nb6+ $1 $18) 15. Bxd7+ Qxd7 (15... Nxd7 16. Ba3 $18) 16.
Qxd7+ Nxd7 17. Bd2 Rc8 18. Na2 $1 $18) (13... O-O-O 14. exf5 Nc5 15. Qe3 $18) (
13... a6 $5 14. exf5 axb5 15. Nxb5 Bxb4+ 16. Bd2 (16. Ke2 $5 Qc6 17. Ncd6+ Bxd6
18. Nxd6+) 16... Bxd2+ 17. Qxd2 (17. Kxd2 $5 Qc6 18. Ncd6+ Ke7 19. Rhc1 $16)
17... Qc5 18. Rc1 Ke7 19. Ne3 $1 $16)) 8... Qxd1+ 9. Kxd1 Bxc5 10. e4 Bg6 11.
Bxc4 Nc6 $1 12. Nxc6 bxc6 $10 13. Bf4 Nh5 $6 (13... Nd7 $5) 14. Bd2 Rb8 15. Kc2
e5 16. Rhe1 Nf4 17. Bxf4 exf4 18. Rad1 Ke7 19. Ne2 Bf2 20. Nd4 Rbc8 21. Rf1
Bxd4 (21... Be3 22. Rd3 Rhd8 23. Rfd1) 22. Rxd4 Rhd8 23. Rfd1 Rxd4 24. Rxd4 f6
25. Kc3 Be8 {[%cal Yc6c5,Ye8a4] /\26... c5 27... Ba4} 26. b3 Rc7 27. Bg8 h5 28.
Kc4 h4 {[%cal Yh4h3] /\29... h3} 29. h3 Rd7 30. Rxd7+ Kxd7 31. Kc5 g5 32. Bc4
Kc7 33. Be6 Bh5 34. b4 Bg6 35. Bc4 Be8 36. Be6 Bg6 37. a5 Bh5 38. Bc4 Be8 39.
Be6 Bh5 40. Bb3 Be8 {Black offered a draw.} 41. Bc4 Bg6 42. b5 cxb5 43. Bxb5
Bf7 44. Bc4 Bg6 (44... Be8 45. Be6 Bc6 $10) (44... Bxc4 $2 45. Kxc4 Kd6 (45...
Kc6 46. a6 Kb6 47. Kd5 Kxa6 48. Ke6 Kb6 49. Kxf6 a5 50. e5 a4 51. e6 a3 52. e7
a2 53. e8=Q a1=Q+ 54. Kxg5 $18) 46. Kb5 $1 Kc7 47. Kc5 (47. Ka6 Kb8) 47... a6
48. Kd5 Kd7 49. e5 fxe5 50. Kxe5 Kc6 51. Kf5 Kb5 52. Kxg5 Kxa5 53. Kxf4 $1 Kb4
54. Kg5 Kc5 55. f4 Kd6 56. Kg6 Ke7 57. Kg7 Ke6 58. Kg6 $10) 45. Be6 Kd8 $6 $18
(45... Be8 46. e5 fxe5 47. Kd5 Bb5 48. Kxe5 Bf1 49. Kf6 Kd6 50. Bg4 Bxg2 51.
Kxg5 Ke5 $10 52. Kxh4 Kd4 53. Kg5 Ke3 54. h4 Bxf3 55. Bxf3 Kxf3 56. h5 Ke3 57.
h6 f3 58. h7 f2 59. h8=Q f1=Q 60. Qe5+ Kf3 61. Qd5+ Ke3 62. Qe6+ Kd4 63. Qd7+
Ke4 64. Qe7+ Kd5 65. Qxa7 $10) 46. Kd6 Ke8 47. e5 (47. Kc7 Ke7 48. Bc4 Be8 49.
Kb7 Kd8 50. Kxa7 Kc7 $10) 47... fxe5 48. Kxe5 Ke7 49. Bf5 Bf7 50. Bd3 Be6 51.
Bg6 Bc4 (51... Bc8 52. Bh5 {[%cal Yh5g4] /\Bg4}) 52. Kf5 Bf1 53. Bh5 $2 (53.
Kxg5 $142 Bxg2 54. Kg4 Kf6 55. Be4 $16 {/+-} Bf1 56. Kxh4 Bc4 57. Kg4 Be6+ 58.
Kxf4 Bxh3 59. Ke3 $18 Ke5 60. f4+ Kd6 61. Kd4 Be6 62. f5 Bf7 63. Bd3 Bb3 64.
Bc4 Bc2 65. f6 Ba4 66. f7 Ke7 67. Kc5 Bd7 68. Bb3 $1 $18) 53... Bxg2 54. Bg4
Kd6 55. Kxg5 Ke5 56. Kxh4 Kd4 57. Kg5 Ke3 58. h4 Bxf3 59. Bxf3 Kxf3 60. h5 Ke4
61. h6 f3 62. h7 f2 63. h8=Q f1=Q 64. Qa8+ Ke5 65. Qb8+ Ke6 66. Qxa7 Qf5+ 67.
Kh4 Qf4+ 68. Kh3 Qf3+ 69. Kh2 Qe2+ 70. Kg3 Qe1+ 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.11"]
[Round "4"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "1-0"]
[ECO "E38"]
[Annotator "ChessBase"]
[PlyCount "75"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Na6 6. a3 Bxc3+ 7. Qxc3 Nxc5 8.
f3 a5 (8... d5 $5 9. cxd5 b6 $5 {N} 10. e4 (10. dxe6 $2 Bxe6 {בc @}) (10. b4
Na4 11. Qb3 b5 12. e4 a6 13. Ne2 O-O 14. Bg5 h6 15. Bh4 exd5 16. e5 Re8 $1 17.
f4 $5 g5 18. Bf2 Ne4 19. Bd4 Be6 20. Qf3 (20. h4 $5 {RR} g4 21. Ng3 {Krnic,Z})
20... Rc8 21. f5 Bd7 22. e6 (22. Ng3 $2 Rxe5 $1 $17 {Miles-de Firmian/Manila
izt/1990}) 22... Bxe6 23. fxe6 Rxe6 24. g3 Nac3 25. Bh3 Nd2 $13) 10... exd5 11.
e5 Nfd7 12. Nh3 O-O 13. Be2 Re8 $15) 9. e4 O-O 10. Bf4 {[%csl Rd6][%cal Yf4d6]
><d6} (10. Be3 b6 11. Rd1 d5 12. Ne2 Qe7 13. e5 Nfd7 14. cxd5 exd5 15. Nf4 Bb7
16. Nxd5 Bxd5 17. Rxd5 Rac8 18. Bb5 $18 {Chekhov,V-Zaitsev,I/Moskva/1982})
10... Qb6 11. Rd1 Ne8 12. Ne2 d6 13. Be3 {[%cal Rb2b4] /\b4} Qc7 (13... a4 14.
e5 $1) 14. Nd4 Qe7 15. Nb5 {[%cal Rb5d6] /\Nd6} Ra6 16. Be2 f5 $5 17. e5 dxe5
18. Qxe5 Nd7 19. Qc3 e5 20. O-O Rg6 $5 21. Qxa5 f4 22. Bc1 (22. Bf2 e4 23. fxe4
f3) 22... Qg5 23. Rf2 e4 $2 (23... Ra6 $142) 24. fxe4 $18 Ne5 25. Qd8 Nf6 26.
Bxf4 Nf3+ 27. Bxf3 Qxf4 28. Qd6 $1 Qh4 29. g3 $1 (29. e5 Qxf2+ 30. Kxf2 Ne4+
$19) 29... Qh3 30. e5 h6 (30... Ng4 $2 31. Bd5+ Be6 32. Qxf8#) 31. Bd5+ Kh7 32.
Qxf8 Nxd5 33. cxd5 Bg4 34. Rd3 Qh5 35. Nd6 Be2 36. Nf7 Rb6 37. Rd2 Bc4 38. Qc5
1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.13"]
[Round "5"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1-0"]
[ECO "D17"]
[Annotator "ChessBase"]
[PlyCount "95"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 (6. Nh4 {
Azmayparashvili,Z} Bc8 7. Nf3 Bf5 8. Ne5 e6 9. f3 Bb4 10. Qd2 $6 {N} c5 $1 11.
e4 Qxd4 $1 12. Nxc4 Bg6 13. Nd6+ Ke7 14. Nxb7 Nc6 $17) 6... e6 (6... Nbd7 7.
Nxc4 Qc7 {[%cal Ye7e5] /\e5}) 7. Bg5 (7. f3 Bb4 8. h4 $5 {N} c5 $1 {8...h6} 9.
dxc5 Qd5 $5 (9... Nd5 10. e4 $1 Nxc3 11. Qxd8+ Kxd8 12. Bd2 Nd5 13. Nxf7+ $16)
(9... Qa5 10. Qd4 Bxc5 11. Qxc4 {/\} Bf2+ 12. Kxf2 Qxe5 13. e4 $16) (9... Qxd1+
10. Kxd1 Nbd7 11. Nxd7 O-O-O 12. e4 Rxd7+ 13. Kc2 $14) (9... Qc7 $1 10. Qd6 $8
(10. Bf4 Nd5) 10... Qxd6 11. cxd6 Bxd6 12. Nxc4 Bg3+ 13. Kd1 Nc6 14. e4 Rd8+
15. Bd2 $13) 10. Bf4 (10. Qxd5 exd5 (10... Nxd5 11. Bd2 $14) 11. e4 (11. g4 Be6
) 11... dxe4 12. Bxc4 O-O $17) 10... Nbd7 $1 11. Nxd7 (11. e4 Bxe4 12. Nxd7
Nxd7 $1) 11... Nxd7 $1 12. Bd6 (12. g4 Qxd1+ (12... Bxg4 13. Qxd5 exd5 14. fxg4
d4 $132) 13. Kxd1 e5 $1 $13) 12... Qxd1+ 13. Kxd1 Rd8 14. Kc1 Bxc5 (14... h5
$13) 15. Bxc5 Nxc5 16. e4 Nb3+ 17. Kb1 $13) 7... Be7 $6 {passive} (7... Bb4 8.
f3 h6 $1 $10 {Alekhine-Bogoljubow/Seitz/1929} 9. e4 $1 hxg5 (9... Bh7) 10. exf5
b5 $1 (10... exf5 11. Bxc4 O-O 12. h4 $16) 11. fxe6 fxe6 12. Qc2 O-O $17 {
Alekhine}) (7... c5 8. e4 Bg6 (8... Qxd4 9. Bxf6 gxf6 10. Nxc4 Bg6 11. Qb3) (
8... cxd4 9. exf5 Bb4 10. fxe6 dxc3 11. Qxd8+ Kxd8 12. O-O-O+) 9. Nxg6 hxg6 10.
e5 cxd4 11. exf6) 8. f3 h6 9. e4 $1 Bh7 (9... hxg5 10. exf5 exf5 11. Bxc4 O-O
12. h4 $1 $16 {Alekhine} (12. Qb3 $5 $13)) 10. Be3 $16 {[%csl Rh7] ץh7} Nbd7
11. Nxc4 O-O 12. Be2 c5 13. dxc5 Bxc5 14. Bxc5 Nxc5 15. b4 Na6 (15... Qxd1+ 16.
Rxd1 Nxa4 17. Nxa4 b5 18. Ncb6 axb6 19. Bxb5 $16) 16. Qxd8 Rfxd8 17. Na2 $1 $8
{[%cal Yc4a5,Ya5b7] /\18.Na5 Rb8 19.Nb7} (17. b5 Nc5) (17. Rb1 Nd5 $1 $132)
17... Nb8 {[%cal Yb8c6,Yc6d4] /\Nc6-d4} 18. Kf2 (18. b5 Nbd7 {[%cal Yd7c5] /
\Nc5}) 18... Nc6 19. Rhd1 Nd4 (19... Rxd1 20. Rxd1 Rd8 21. b5 Rxd1 22. Bxd1 Nd8
23. Nd6 {/\24.Nb4, 25.Nc8+- Alekhine}) 20. Rac1 Kf8 {[%cal Yh7g8] /\Bg8, Ne8,
f6} 21. Bf1 Ne8 22. Nc3 (22. Na5 Rab8 (22... b6 23. Nb7 Rd7 24. Bb5 Rxb7 25.
Rxd4 $16) 23. Nc3 b6 24. Rxd4 $1 Rxd4 25. Nc6 Rbd8 26. Ke3 R4d6 27. Nxd8 Rxd8
28. Nb5 $16 {Alekhine}) 22... f6 23. Na5 Rab8 (23... b6 24. Nb7 (24. Nb5 Nxb5 (
24... bxa5 25. Nxd4 Bg8 26. b5 $16) 25. Rxd8 Rxd8 26. Nc6 {[%cal Ya4b5] /
\ab5_|_+/=Yates}) 24... Rd7 25. Bb5 Rxb7 26. Rxd4 Rc7 27. Ne2 Rxc1 28. Nxc1 Rc8
29. Nd3 $16 {Alekhine}) 24. Nb5 $1 Nxb5 $8 25. Rxd8 Rxd8 26. Nxb7 $1 Rb8 (26...
Rd2+ 27. Ke3 Nbd6 28. Kxd2 Nxb7 29. Rc8 {[%cal Yc8a8,Ya8a7] /\30.Ra8, 31.Ra7+-
Alekhine}) 27. Nc5 Ke7 28. axb5 $1 {[%csl Ra7] ><a7} (28. Bxb5 $143) 28... Nd6
29. Ra1 Nc8 30. Bc4 Bg8 (30... e5 31. Be6 $18) 31. f4 Bf7 32. e5 fxe5 33. fxe5
Rb6 34. Ke3 Be8 35. Ra5 Bd7 36. Kd4 Be8 37. h4 Bd7 38. Be2 Rb8 39. Nxd7 Kxd7 {
[%cal Yb8b7,Yb7c7] /\Rb7-c7} 40. Bf3 $1 Rb6 41. Kc5 {[%cal Ya5a7] /\42.Ra7} Rb8
42. h5 Kd8 43. Bc6 Ke7 44. Ra3 Kf7 45. Be4 Ke7 46. Kc6 $1 Kd8 47. Rd3+ Ke7 48.
Kc7 (48. Kc7 Rxb5 49. Kxc8 $18 (49. Rd7+ Kf8 50. Bg6 Nb6 (50... Ne7 $2 51. Rd8#
) 51. Rd8+ Ke7 52. Re8#)) 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.15"]
[Round "6"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "1-0"]
[ECO "E22"]
[Annotator "ChessBase"]
[PlyCount "95"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 Qe7 5. a3 (5. Bg5 b6 6. a3 Bxc3+ 7. Qxc3
Bb7 8. f3 d6 9. Nh3 h6 10. Bh4 Nbd7 {Christiansen-Karpov/Wijk m(02)25'/1993/
CBM 34}) 5... Bxc3+ 6. Qxc3 b6 7. f3 d5 8. cxd5 Nxd5 9. Qc2 Qh4+ 10. g3 Qxd4
11. e4 Ne7 (11... Ne3 12. Qd3 Qxd3 13. Bxd3 Ba6 14. Bxa6 Nc2+ 15. Kd1 Nxa1 16.
Bb7 Kd7 17. Bxa8 Na6 18. Bb7 Nc5 19. b4 Nxb7 20. Bb2 Nb3 21. Kc2 $18) 12. Bf4 (
12. Qxc7 $143 Nbc6) 12... Bd7 13. Rd1 Qa4 14. Qxc7 Qc6 15. Ne2 Qxc7 16. Bxc7
Na6 17. Bd6 Bb5 18. Nc3 Bxf1 19. Rxf1 Nc8 20. Bf4 Ke7 21. Rf2 Rd8 22. Rxd8 Kxd8
23. Rd2+ Ke8 24. Nb5 f6 25. b4 Ne7 26. Kd1 Ng6 27. Bc7 e5 28. Kc2 Nf8 29. Bd6
Ne6 30. f4 exf4 31. gxf4 Rc8+ 32. Kb3 Ra8 33. h4 Kf7 34. f5 Nd8 (34... Nf8 35.
Bxf8 Kxf8 36. Rd7) 35. Bf4 Ke7 36. Rg2 g6 (36... Kf8 37. e5 fxe5 $6 (37... Nc6
38. exf6 gxf6 39. Bh6+ Ke7 40. Rg7+ $18) (37... Nf7 38. e6 Nd8 39. e7+ $18) 38.
Bxe5 $18) 37. Rc2 gxf5 38. exf5 Nf7 39. Re2+ Kd7 40. Re6 Rg8 41. Rxf6 Ke7 42.
Re6+ Kd7 43. Bd6 Nxd6 44. Rxd6+ Ke8 45. Nxa7 Rg3+ 46. Ka4 Rg7 47. Nc6 Nc7 48.
f6 (48. f6 Rf7 (48... Rd7 49. f7+) (48... Rg3 49. Rd8+ Kf7 50. Rd7+ $18) 49.
Rd8#) 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.17"]
[Round "7"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1-0"]
[ECO "D78"]
[Annotator "ChessBase"]
[PlyCount "69"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Nf3 Bg7 6. O-O O-O 7. Nc3 (7. Bf4 Ne4
8. Nc3 Bf5 9. Qb3 Qb6 $1 10. cxd5 Qxb3 11. axb3 Nxc3 12. bxc3 cxd5 13. Ne5 (13.
Nd2 Rd8 14. Bc7 Rc8 15. Bxb8 Raxb8 $132) 13... Rd8 14. Ra5 Be6 (14... Bxe5 15.
Bxe5 Nc6 16. Rxd5 $16) 15. Rb5 $1 (15. c4 Bxe5 16. dxe5 Nc6 $132) 15... g5 16.
Bxg5 (16. Be3 $5 Nc6 (16... f6 17. Nd3 b6 18. Nb4 $16) (16... b6 17. c4 $36)
17. Nxc6 bxc6 18. Rc5 $16 {Ftacnik,L}) 16... f6 17. Nf3 Bd7 (17... fxg5 18.
Nxg5 Bd7 19. Bxd5+ e6 20. Nxe6 $16) 18. Rxb7 fxg5 19. Nxg5 Bc8 (19... e6 20.
Bh3 Re8 21. Rxd7 Nxd7 22. Bxe6+ Rxe6 23. Nxe6 $16) 20. Rb5 (20. Rxe7 Bf6) 20...
e6 21. c4 Bd7 22. Rb7 (22. Rxd5 $5 exd5 23. Bxd5+ Kf8 24. Bxa8 Bxd4 $14) 22...
h6 (22... Bc8 23. Rc7 Na6 24. Rxc8 $5 Raxc8 25. Nxe6) 23. Nf3 Bc8 24. Rb5 Bd7 (
24... Nc6 25. cxd5 exd5 26. Ra1 a6 27. e3 axb5 $1 28. Rxa8 Bb7 $10 {
Chiburdanidze-Xie Jun/WchW Manila/1991}) 25. Rb7 $10) 7... dxc4 8. Ne5 Be6 9.
e4 Nbd7 10. f4 (10. Nf3 Bg4 11. h3 Bxf3 12. Qxf3 e5 13. Rd1 exd4 14. Rxd4 Ne5
15. Qe3 Qb6 16. f4 Nfg4 17. Na4 Qxd4 18. hxg4 Nxg4 {0-1 Fieandt,J-Nippula,T/
Jyvaskyla op ;EXT 93op 1993}) 10... Qb6 11. f5 gxf5 (11... Nxe5 12. Na4 Qa5 13.
dxe5 $16) 12. exf5 Bd5 13. Nxd5 cxd5 14. Nxd7 Nxd7 15. Bxd5 Rad8 (15... Qxd4+
16. Qxd4 Bxd4+ 17. Kg2) (15... Bxd4+ 16. Kh1 c3 $13) 16. Be3 (16. Bxc4 Ne5 17.
Be2 Rxd4) 16... Qxb2 17. Bxc4 Nb6 18. Bb3 Rxd4 (18... Bxd4 $142) 19. Qh5 Re4 (
19... Qc3 $142 20. Bxd4 (20. Rae1 $142) 20... Qxd4+ 21. Kg2 Qe4+) 20. f6 Rxe3 (
20... Bxf6 21. Bh6) (20... exf6 21. Bc5 Re5 $19) 21. Qg5 Rxg3+ 22. Qxg3 exf6
23. Rad1 Kh8 24. Kh1 Bh6 25. Qd6 Bg7 26. Qe7 Qe5 27. Qxb7 f5 28. Rde1 Qf6 29.
Qf3 Qc3 30. Qxf5 Nc8 31. Bc2 Qc6+ 32. Rf3 Qg6 (32... Qh6 33. Rh3 Qc6+ 34. Be4
$18) 33. Qxg6 hxg6 34. Bxg6 Kg8 (34... fxg6 35. Rxf8+ Bxf8 36. Re8 $18) 35.
Bxf7+ 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.09.19"]
[Round "8"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "0-1"]
[ECO "A50"]
[Annotator "ChessBase"]
[PlyCount "60"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 b6 $6 (2... e6 $142) 3. Nc3 Bb7 4. f3 d5 5. cxd5 Nxd5 6. e4
Nxc3 7. bxc3 e6 8. Bb5+ Nd7 9. Ne2 Be7 10. O-O a6 11. Bd3 c5 12. Bb2 $2 {
The wrong idea!} (12. Be3 $142) (12. Bf4 $142) (12. a4 $142) 12... Qc7 13. f4
$6 (13. e5 $142) 13... Nf6 14. Ng3 h5 $1 15. Qe2 h4 16. Nh1 Nh5 17. Qg4 $2 (17.
Bc1 $10 {/=/+}) 17... O-O-O 18. Rae1 (18. f5 Nf6 {/\e5-/+} 19. Qxg7 $2 Rh7)
18... Kb8 $19 {Strategically lost game for Black.} 19. f5 e5 20. d5 c4 $1 21.
Bc2 Bc5+ 22. Nf2 g6 $1 23. fxg6 Rdg8 24. Bc1 Bc8 25. Qf3 Rxg6 {[%cal Rc8g4] /
\26... Lg4-+} 26. Kh1 (26. Be3 Bxe3 27. Rxe3 Nf4 28. g3 hxg3 29. hxg3 f5 {
/\30... Qh7 Alekhine} (29... Bb7 $5 $19)) 26... Ng3+ $1 27. hxg3 (27. Kg1 Bg4
$19) 27... hxg3+ 28. Nh3 (28. Kg1 gxf2+ 29. Rxf2 Bg4 30. Qg3 Be2 31. Qxg6 (31.
Bg5 $142 f5 32. d6 (32. exf5 Rxg5 33. Qxg5 Qh7 $19) 32... Qg7 33. Rexe2 Rxg5
$19) 31... fxg6 32. Rexe2 Qh7 $19) 28... Bxh3 29. gxh3 Rxh3+ 30. Kg2 Rh2# 0-1

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.03"]
[Round "9"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1/2-1/2"]
[ECO "D52"]
[Annotator "ChessBase"]
[PlyCount "60"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2
O-O 9. Be2 dxc4 (9... b6 $5 {N} 10. O-O Bxc3 11. bxc3 Ba6 12. Bh4 $1 (12. a4
dxc4 13. Bxf6 Nxf6 14. Nxc4 Qd5 15. Ne5 Bxe2 16. Qxe2 $10) 12... Rac8 (12...
dxc4 13. e4 $1 b5 14. a4 Qb6 15. Rfb1 $16) 13. a4 $1 dxc4 $8 14. Nxc4 Bxc4 (
14... Qd5 $2 15. Nxb6 $16) (14... Qf5 $142 {Stempin,P.} 15. Bd3 Qg4 16. Bg3 c5
17. Nd6 $14) 15. Bxc4 $14 {^^ Stempin,P-Panczyk,K/Polska (ch)/1987}) (9... e5
10. dxe5 Ne4 11. Ndxe4 (11. Ncxe4 dxe4 12. O-O-O Nxe5 13. Qxe4 f6 14. Bh4)
11... dxe4 12. O-O Nxe5 13. Qxe4 (13. Nxe4 $142) 13... f6 14. Bh4 $10 (14. Bf4
Bf5 15. Qd4 Rad8 16. Bxe5 Rxd4 17. Bxd4 c5 18. a3 cxd4 19. axb4 Qxb4 $16)) 10.
Bxf6 Nxf6 11. Nxc4 Bxc3+ $2 {><black squares} (11... Qc7 $142) 12. Qxc3 Qxc3+
13. bxc3 Bd7 14. Bf3 Rfd8 15. a4 {/\-><<} Rac8 16. Kd2 Rc7 17. Rhb1 Bc8 18. a5
$1 {[%csl Rb7] ><b7} Nd7 (18... c5 19. a6 cxd4 20. cxd4 b6 (20... Rxc4 21. axb7
) 21. Nxb6 axb6 22. a7 $18) 19. Kc2 Kf8 20. Nb6 {[%cal Yb6a8] /\Na8} axb6 (
20... Nf6 21. a6 bxa6 22. Nxc8 Rdxc8 23. Rxa6 c5 24. Rb3 cxd4 25. exd4 Nd5 26.
Bxd5 exd5 27. Rba3 Ra8 28. Rd6 $16) 21. axb6 Nxb6 22. Rxb6 Ke7 23. Ra7 c5 $8
24. Ra4 (24. Bxb7 cxd4 25. exd4 e5 26. dxe5 Bf5+ $40) 24... Rd6 25. dxc5 Rxc5
26. Rbb4 Rd7 27. Ra3 Rdc7 28. Rab3 e5 29. Bxb7 Bxb7 30. Rxb7 Rxc3+ 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.05"]
[Round "10"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "0-1"]
[ECO "D52"]
[Annotator "ChessBase"]
[PlyCount "99"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2
dxc4 9. Bxf6 Nxf6 10. Nxc4 Qc7 11. Be2 (11. g3 $142 {[%cal Yf1g2] /\Bg2}) 11...
O-O 12. O-O Rd8 (12... b6 13. Rac1 Bb7 14. Bf3 Rac8 (14... c5 $4 15. Nb5 Qe7
16. Bxb7 Qxb7 17. a3 $18) 15. a3 Bxc3 $5 16. Qxc3 Nd5 17. Qd2 c5 18. Ne5 {
/\ b4+/=}) (12... Bd7 {/\ Rfd8, Rac8, Be8, Be7+/=}) 13. Rad1 (13. a3 {[%cal
Yb2b4] /\b4}) 13... Nd5 14. Ne4 Be7 15. a3 b6 16. Bd3 Bb7 17. Rc1 Rac8 18. b4
h6 19. Qb3 Nf6 20. Rfd1 (20. h3) 20... Ng4 $1 21. Ng3 c5 $1 22. dxc5 bxc5 23.
b5 (23. bxc5 Bxc5 $15 {^^}) (23. h3 $2 Nxf2 24. Kxf2 Bh4 $19) 23... Bd5 24. Qc2
Ne5 25. Nxe5 Qxe5 26. Bc4 Bxc4 27. Qxc4 Qb2 28. a4 Rxd1+ 29. Rxd1 Qb4 30. Qc2
$2 (30. Rc1 $142) (30. Qxb4 $2 cxb4 $17) 30... c4 31. Ne2 Bf6 32. g3 c3 33. Rb1
Qa5 34. Kg2 Rd8 $2 (34... Rc4 $1 35. Ra1 Rb4 $19 {[%cal Yb4b2] /\36... Rb2
Yates}) 35. Qe4 $1 Rd2 36. Qc4 {[%cal Yb1c1] /\Rc1} Rc2 37. Rd1 Qb6 38. Nd4 (
38. Qd3 Rb2 39. Nxc3 $2 Rb3 $19) 38... Qd8 $1 39. Rd3 Bxd4 40. Rxd4 $6 (40.
Qxd4 $142 $10) (40. exd4 $142) 40... Qf6 $1 $10 41. Rf4 Qe5 $1 42. e4 $2 (42.
Qc8+ Kh7 43. Rxf7 Qd5+ 44. e4 Qxe4+ 45. Kh3 $10 {Kotov}) (42. Re4 Qf5 43. Rf4
Qd5+ 44. Qxd5 (44. Re4 $142) 44... exd5 $19 45. Kf1 Rb2 46. Ke1 Rb1+ 47. Ke2 c2
) 42... Rd2 43. Qc8+ $2 $19 (43. a5 c2 (43... Rb2 44. b6) 44. b6 axb6 45. axb6
Qb2 46. Qc8+ Kh7 47. b7 $10) (43. Rf3 c2 44. Rc3 Qf6 45. Rf3 (45. Qc5 Rxf2+ 46.
Qxf2 Qxc3 $19) 45... Qb2 46. Rc3 c1=Q 47. Rxc1 Rxf2+ 48. Kh3 Rxh2+ 49. Kg4 h5+
50. Kf4 Qf6+ 51. Ke3 Qf2+ 52. Kd3 Qd2#) 43... Kh7 44. Rxf7 Qxe4+ 45. Kh3 Rd5
46. Rf4 Rh5+ 47. Kg4 Qe2+ 48. f3 Rg5+ 49. Kh3 Qf1+ 50. Kh4 (50. Kh4 Rh5+ 51.
Kxh5 Qh3+ 52. Rh4 Qf5#) 0-1

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.07"]
[Round "11"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1/2-1/2"]
[ECO "D51"]
[Annotator "ChessBase"]
[PlyCount "126"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nc3 e6 4. Nf3 d5 5. Bg5 Nbd7 6. e4 (6. cxd5 cxd5 7. e3
Qa5 8. Qb3 Bd6 9. Bd3 a6 10. O-O b5 11. Nd2 Bb7 12. Qd1 b4 13. Ne2 O-O 14. Bf4
Be7 15. Nc1 Rfc8 16. Qe2 Qb6 17. a4 bxa3 18. bxa3 Ne4 19. Rb1 Nc3 20. Qh5 g6
21. Rxb6 Nxb6 22. Qg4 Bxa3 23. Ncb3 Nd7 24. Na5 Bc6 {1-0 Sorin,A-Blanco
Fernandez,A/Capablanca mem (12) ;CBM 48 1995}) 6... dxe4 (6... Qa5 7. Bd2) 7.
Nxe4 Qb6 (7... Be7) 8. Nxf6+ gxf6 9. Bc1 e5 10. Bd3 $5 (10. dxe5 Bb4+ 11. Bd2
Bc5 $13) 10... exd4 11. O-O Be7 12. Re1 Nf8 13. Nh4 Be6 14. Nf5 Bb4 15. Ng7+
Kd7 16. Re4 Rg8 17. Nh5 (17. Nf5 Bxf5 18. Rxd4+ Kc8 19. Bxf5+ Ne6) 17... Be7
18. b4 f5 19. c5 Qxb4 20. Re5 Ng6 (20... Bxc5 $6 21. Rb1 Qc3 22. Nf6+ Kd6 23.
Rxc5 Rxg2+ 24. Kxg2 Qxc5 25. Rxb7) 21. Rb1 Qa5 (21... Qxb1 $2 22. Bxb1 Nxe5 23.
Qxd4+ $19) 22. Re2 (22. Rxb7+ $2 Kc8 $19) 22... b6 23. cxb6 axb6 24. Reb2 Rab8
25. Bf1 c5 26. a4 Kc7 27. Rb5 Qa8 28. a5 bxa5 29. Bd2 Rxb5 30. Rxb5 Rb8 31.
Rxa5 Qb7 32. Qa4 Bd7 33. Qa2 Qb3 34. Ra7+ Kd6 (34... Kc8 $2 35. Ba6+ Kd8 36.
Ba5+ Ke8 37. Qxb3 Rxb3 38. Ra8+ $18) 35. Qa6+ Rb6 (35... Qb6 $142) 36. Qa5 Rb7
37. Ra6+ Bc6 38. Ng7 Qd5 39. f3 Kd7 (39... d3 $1 {-/+/-+}) 40. Bd3 Bd8 41. Qa1
Ne7 42. Nxf5 Qb3 (42... Nxf5 $2 43. Be4 $18) 43. Qf1 Nd5 44. Ra1 (44. Bc4 Qb1
45. Bxd5 Qxf1+ 46. Kxf1 Bb5+ 47. Ke1 Bxa6) 44... Bb5 45. Bxb5+ Qxb5 46. Qe1 Qc6
47. Qg3 Qg6 48. Qh3 Kc6 49. Nxd4+ cxd4 50. Qc8+ Bc7 (50... Kb6 51. Ba5+ Ka7 52.
Bxd8+ $18) 51. Rc1+ Nc3 (51... Kb6 52. Ba5+ Ka7 53. Bxc7) 52. Bxc3 Rb1 (52...
dxc3 53. Rxc3+ Kb6 54. Rb3+ $18) 53. Qa8+ Kd7 54. Qa4+ Kc8 55. Bd2 Rxc1+ 56.
Bxc1 Qd6 57. Qe8+ Kb7 58. Qb5+ Ka7 59. Qa4+ Kb7 60. Qb5+ Bb6 61. Qd3 Qg6 62.
Qxg6 fxg6 63. Kf2 Kc6 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.11"]
[Round "12"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "0-1"]
[ECO "D52"]
[Annotator "ChessBase"]
[PlyCount "112"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5 8.
Qd2 Bb4 9. Rc1 h6 10. Bh4 O-O 11. Bd3 e5 12. a3 (12. O-O $142) 12... Bxc3 13.
bxc3 Qxa3 (13... exd4 $6 14. cxd4 Qxa3 15. e4 N5f6 16. O-O {[%cal Yc1a1] /\Ra1}
) 14. Nxe5 Nxe5 15. dxe5 Re8 16. Bg3 $2 (16. f4 $1) 16... Be6 17. O-O Rad8 $17
{[%cal Yd5b4] /\Nb4} 18. Qc2 $2 (18. Qe1 $142) (18. Rfd1 $142) 18... Nxc3 19.
Bh7+ (19. Ra1 Qb4 20. Rxa7 Bc4 21. Bxc4 Qxc4 {[%cal Rc3e2] /\Ne2-+} 22. Kh1
Qxf1#) 19... Kh8 20. Ra1 Qb4 21. Rfc1 g6 $2 (21... Bb3 $142 22. Qb2 Na4 23. Qb1
Rd2 $19 {Kotov} (23... a5 $19)) 22. Bxg6 (22. Qxc3 $2 Rd1+) 22... fxg6 23. Qxg6
Ne2+ 24. Kf1 Nxg3+ (24... Nxc1 25. Qxh6+ Kg8 26. Qg6+ Kf8 27. Qf6+ Bf7 28. Qh8+
Ke7 29. Qf6+ Kd7 30. Qxf7+ Re7 31. Qf5+ Re6 32. Rxc1 $44) 25. hxg3 Qf8 26. Rxa7
Rd7 27. e4 Rf7 28. Kg1 (28. f4 Rxf4+ 29. gxf4 Qxf4+ $17 {/~/=}) 28... Qg7 (
28... Rxf2 29. Rxb7 $19 {[%csl Rc6] ><c6}) 29. Qxg7+ Kxg7 30. f3 (30. f4 $142
Bg4 31. Rc5) 30... Rc8 31. f4 b5 32. Ra6 Bc4 33. f5 Rfc7 $1 34. Kf2 Re8 $1 35.
e6 Kf6 36. Rh1 Ke5 $1 37. Rxh6 b4 38. Rb6 (38. Ra4 Rb8 39. Rh1 Bd3 $19) 38...
Bb5 39. Rh1 Kxe4 40. g4 Kd5 $2 (40... Kf4 $1 $19 {easy}) 41. g5 $1 Ra7 $1 (
41... Kc5 42. Rxb5+ Kxb5 $1 (42... cxb5 43. f6 Rxe6 44. Rc1+ Kd6 45. Rxc7 Kxc7
46. f7 $18) 43. g6 (43. Re1 Rg7 44. f6 Rxg5 45. f7 Rf5+ 46. Kg1 Rh8 $19) 43...
Kc4 44. Rd1 $19 {/ -/+ Kotov}) 42. Re1 (42. g6 Ke5 43. g4 b3 $19) 42... b3 43.
g4 Ra2+ 44. Kg3 b2 45. Rb1 Ra3+ 46. Kf4 Be2 $1 {[%cal Ra3f3] /\47.Rf3#} 47. g6
Ra4+ 48. Kg5 Rxg4+ 49. Kf6 Rf8+ 50. Ke7 Rxf5 51. R6xb2 Re5 52. Rd2+ Kc5 53. g7
Bc4 (53... Rxg7+ $2 54. Kf6 Rgg5 55. Rxe2) 54. Rd7 Rxe6+ 55. Kd8 Rd6 56. Rxd6
Kxd6 0-1

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.13"]
[Round "13"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "0-1"]
[ECO "D52"]
[Annotator "ChessBase"]
[PlyCount "68"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5 8.
Qd2 Bb4 9. Rc1 O-O 10. Bd3 h6 $1 11. Bh4 e5 12. O-O Re8 (12... exd4 13. exd4
Re8 $1 14. Rfe1 (14. Bb1 Nf8 15. Ne5 Be6 16. Rfe1 (16. Nd3 $5) 16... c5 $1 17.
Nc4 $6 (17. dxc5 Nxc3 18. bxc3 Bxc5 $15) (17. Nf3 $5) 17... Qa6 18. Ne3 Nxe3
19. fxe3 (19. Qxe3 Bxa2 $1 $17) (19. Rxe3 Bxa2 $1 $17) 19... Bxa2 $1 20. Bxa2
Qxa2 $17 {Oll-Smagin/Kobenhavn/1993}) 14... Rxe1+ 15. Rxe1 N7f6 $1 $15) 13. e4
Nf4 14. Bc4 Ng6 15. a3 Nxh4 16. Nxh4 Be7 (16... Bxc3 $8) 17. Nf5 (17. b4 $1
Qxa3 18. Ra1 Qxb4 19. Bxf7+ Kxf7 20. Qa2+ Kf6 21. f4 $18 {Rabinovich} Qxd4+ 22.
Kh1 Qxc3 23. fxe5+ Kxe5 24. Rad1 Bxh4 25. Rf5+ Kxe4 26. Qb1+ Ke3 27. Rf3+ Ke2
28. Rxc3 Kf2 29. Qf5+ Ke2 30. Qc2#) 17... Bf8 18. b4 Qd8 19. Qa2 Qf6 20. d5 Nb6
21. Ne3 Qg6 22. Bb3 a5 23. b5 a4 24. Bd1 cxd5 25. Nexd5 Nxd5 26. Nxd5 Be6 27.
Rc4 Rec8 28. Re1 Bxd5 29. exd5 Qd3 30. Rxc8 (30. Rxa4 Rxa4 (30... Rc1 $19) 31.
Bxa4 Qe4 $19) 30... Rxc8 31. Bxa4 $2 $138 (31. Qa1 $142 Qxb5 32. Rxe5 Bd6 33.
Re1 Qxd5 34. Bxa4 Ra8 $15 {Alekhine} 35. Bc2 Rxa3 $4 36. Re8+ $1 $18) 31... Qe4
32. Qd2 Qxa4 33. d6 Qd4 34. Qxd4 exd4 0-1

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.15"]
[Round "14"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "1-0"]
[ECO "D30"]
[Annotator "ChessBase"]
[PlyCount "141"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 c5 6. O-O Nc6 7. Nc3 Be7 (7... Bd6
$142 {/\Qe7 Tarrasch}) 8. a3 a5 9. dxc5 Bxc5 10. Qe2 O-O 11. e4 dxc4 (11... d4
12. e5 dxc3 (12... Nd7 13. Bxh7+) (12... Nxe5 $5) 13. exf6 Qxf6 14. Bg5 Nd4 15.
Bxf6 Nxe2+ 16. Bxe2 gxf6 17. bxc3) 12. Bxc4 e5 13. h3 (13. Bg5 Bg4 {[%cal
Rc6d4] /\Nd4}) 13... Nd4 14. Nxd4 Bxd4 15. Bg5 Be6 16. Nd5 (16. Bxe6 fxe6 $15)
16... Bxd5 17. Bxd5 h6 18. Bxf6 Qxf6 19. Rad1 Rac8 20. Rd3 Rc7 21. b3 {[%cal
Ya3a4,Yd5c4] /\22.a4, 23.Bc4 closing the c-file} b5 22. Rf3 Qb6 23. a4 bxa4 24.
bxa4 Qb4 25. Qa2 Qb2 $8 26. Qxb2 Bxb2 27. Rb1 Bd4 28. Rb5 Ra7 29. h4 $14 h5 $6
{Black is better to keep his pawns on the black squares.} 30. Rb7 Rxb7 31. Bxb7
Rd8 32. Bd5 Rd7 33. Rb3 Kf8 34. Rb5 Ra7 35. Bb7 Ke7 36. g3 Kd6 37. Kg2 Kc7 38.
Bd5 Kd6 39. f4 f6 40. Bb3 Ra6 41. Bf7 Rc6 42. Rd5+ (42. Rxa5 Rc2+ 43. Kh3 Rc3
$132) 42... Ke7 43. Bxh5 Rc5 44. fxe5 fxe5 45. Bf3 Kf6 (45... Rxd5 46. exd5 $18
) 46. Rd6+ (46. Rxc5 Bxc5 $10) 46... Ke7 47. Rg6 Kf8 48. Bh5 Be3 49. Kf3 Rc3
50. Ke2 Bc5 (50... Bd4 $142 $14 {Bogoljubow}) 51. Re6 g6 52. Bxg6 Re3+ 53. Kd1
Rxg3 54. h5 {[%cal Rh5h6] /\h6} Kg7 $8 55. Rxe5 Bb4 56. Ke2 Ra3 57. Be8 Rh3 58.
Bd7 Rc3 59. Re6 Bf8 60. Ra6 Bb4 61. h6+ Kf7 62. Be6+ Kf6 63. Bf5+ Kf7 64. Ra7+
Be7 65. Rxa5 Rc2+ 66. Kf3 Rh2 67. h7 Bf6 68. e5 Bg7 69. Ra7+ Kf8 70. e6 Be5 71.
e7+ 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.17"]
[Round "15"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1/2-1/2"]
[ECO "E70"]
[Annotator "ChessBase"]
[PlyCount "88"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 Bg7 4. e4 O-O 5. Nc3 c6 6. Be3 d5 7. e5 Nfd7 $2 (7...
Ne8 8. cxd5 cxd5 9. f4 Nc6 10. Nf3 Bg4 11. Be2 e6 12. O-O f6 13. Rc1 {+/=
Rukavina,J-Ivanovic,B/Jugoslavija (ch)/1982}) 8. cxd5 cxd5 9. Nxd5 Qa5+ 10. Nc3
Nc6 11. Bc4 (11. f4 $142 {[%cal Yd4d5] /\d5}) 11... Nb6 12. Bb3 Be6 13. Nge2 (
13. Bxe6 $5) (13. d5 $2 Nxd5 14. Bxd5 Rad8) 13... Nc4 14. Bxc4 Bxc4 15. O-O
Rfd8 16. f4 Rac8 {[%cal Rc6b4] /\Nb4} 17. a3 Qb6 18. Qd2 Na5 19. Rae1 (19. d5
$1) 19... Qc6 20. Bf2 b6 21. Qe3 f5 22. Bh4 (22. exf6 $6 exf6 {[%csl Rd4] ><d4,
Black counterattacks on the e-file}) 22... Rd7 23. b4 Bxe2 24. Nxe2 Nc4 25. Qb3
b5 26. Rd1 {[%cal Yd4d5] /\27.d5 Rd5 28.Rd5 Rd5 29.Be7} e6 27. Bf2 Bf8 28. Rd3
a5 {/\29... ab and Ra8->a-<->} 29. bxa5 Nxa5 (29... Nxa3 30. Rc3 Nc4 31. Rb1)
30. Qb1 Nc4 31. Rc1 Ra8 32. d5 Rxd5 33. Rxd5 Qxd5 34. Nc3 Qd2 35. Nxb5 Nxa3 (
35... Qxf4 $2 36. g3 Qg4 37. Qb3 Rc8 38. Nd4 $18 (38. Nd6)) 36. Nxa3 Rxa3 37.
g3 Ra2 38. Rf1 Rb2 (38... Bc5 39. Qb8+ Kf7 40. Qc7+) 39. Qc1 Qb4 40. Qc6 Qb3
41. Qa8 Qc4 42. Qd8 Qc6 43. Rd1 Qf3 44. Rf1 Qc6 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.19"]
[Round "16"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "0-1"]
[ECO "D30"]
[Annotator "ChessBase"]
[PlyCount "120"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 6. O-O dxc4 7. Bxc4 Bd6 8.
Nbd2 O-O 9. Bb3 Bc7 10. Nc4 b6 11. Re1 (11. Bc2 Bb7 12. b3 {[%cal Yc1a3,Yc1b2]
/\Ba3, Bb2}) 11... Bb7 12. e4 b5 $1 13. Nce5 (13. Ncd2 $2 e5 $1 $17 {@}) 13...
Nxe5 14. dxe5 Nd7 15. Bf4 c5 $17 16. Qe2 $2 (16. Bg3 $142) 16... c4 17. Bc2 Qb8
$1 18. b3 cxb3 19. Bxb3 (19. Qxb5 $142 bxc2 20. Qxd7 Ba5 21. Re2 Bxe4 22. Rxe4
Qb1+ $19 {Kotov}) 19... Nxe5 $19 20. Nd4 a6 21. Bg3 Rd8 22. Red1 Ng6 23. Qh5
Bxg3 24. hxg3 Qe5 25. Qxe5 Nxe5 26. f3 Rd7 27. Nc2 Kf8 28. Rxd7 Nxd7 29. Rd1
Ke7 30. Kf2 Rc8 31. Nd4 g6 32. g4 e5 33. Nc2 Nc5 34. Ne3 Nxb3 35. axb3 Rc3 36.
b4 $6 (36. Rb1 $142 {[%cal Yf2d2] /\Ke2-d2}) 36... Rb3 37. Nc2 Rb2 38. Rc1 Bc8
39. g5 Be6 40. Kg3 Kd7 41. Ne1 Bc4 42. Nc2 Kc6 {[%cal Yc6b7,Yc4b3] /\Kb7, Bb3
-+} 43. Ne3 Rxb4 44. Ng4 a5 45. Nxe5+ Kb6 46. Nd7+ Kc7 47. Ne5 Kb7 48. Kf4 a4
49. Ra1 Kb6 50. g4 Be6 51. Ke3 Rb3+ 52. Kd4 a3 53. f4 Rb4+ 54. Ke3 a2 55. f5
Rb1 $1 56. fxe6 Rxa1 57. e7 Re1+ 58. Kf4 (58. Kf2 $142) 58... a1=Q 59. e8=Q
Qc1+ 60. Kg3 Qe3+ (60... Qe3+ 61. Nf3 Rg1+ 62. Kh4 (62. Kh3 Qxf3+ 63. Kh2 Rh1#)
62... Qf2+ 63. Kh3 Qg3#) 0-1

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.21"]
[Round "17"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1-0"]
[ECO "D70"]
[Annotator "ChessBase"]
[PlyCount "67"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. f3 d5 (3... c5 4. d5 d6 5. e4 e5) 4. cxd5 Nxd5 5. e4 Nb6
6. Be3 Bg7 7. Nc3 Nc6 $6 (7... O-O $142) 8. d5 (8. Bb5 $1 O-O (8... Bd7 9. Nge2
O-O 10. O-O Na5 11. Bd3 Nac4 12. Bc1 a6 13. Bc2 c6 14. b3 Nd6 15. Bb2 $16) 9.
Nge2 e5 (9... Na5 $1 10. b3 a6 11. Bd3 Nc6 $1 12. Bc2 (12. Rc1 {/\ Bb1}) 12...
Nb4 13. O-O c6 14. Rc1 Nxc2 15. Rxc2 $1 a5 $1 16. Rd2 a4 {[#]} 17. d5 $1 Qc7
18. Bf4 (18. Nxa4 Nxa4 19. bxa4 Qa5 $13) 18... Be5 19. Bxe5 Qxe5 20. f4 Qd6 21.
dxc6 Qc5+ 22. Rd4 bxc6 23. b4 Qh5 24. Qd2 (24. Ng3 Qxd1 25. Rfxd1 $14) 24...
Ba6 $1 25. Ng3 Qh4 26. Nce2 e5 $1 27. fxe5 Nc4 28. Qc3 Nxe5 29. Rd6 Rfe8 30.
Rf4 (30. Rfd1 Ng4 $13) 30... Qe7 31. Rd4 (31. Rdf6 Rad8 32. Nd4 $2 Qa7 $1) (31.
Rd2 Rad8 32. Nd4 Qg5 33. Rdf2 Nd3 34. Rxf7 Qe5 $1) 31... Bxe2 $6 32. Nxe2 Red8
33. Rf1 Rxd4 {Borwell 1/2-1/2 Borwell,AP-Muellner,I/corr 19 world ch. sf 1992/
94 /1992}) 10. d5 Ne7 {Bondarevsky-Aronin/URS-ch16 Moscow/1948} (10... Nb8 11.
O-O c6 12. dxc6 Nxc6 13. Bc5 Re8 14. Nd5 $16)) 8... Ne5 9. Bd4 (9. f4 Ng4 10.
Bb5+ Bd7 11. Bd4 Bxd4 12. Qxd4 O-O 13. Be2 c6 14. dxc6 bxc6 15. Nf3 Qc7 16. h3
Nf6 17. Qe3 $14 {Speelman-Lputian, Hastings 1986/87}) 9... f6 $2 (9... O-O 10.
f4 Ned7 (10... Bg4 $1 11. Be2 Bxe2 12. Ngxe2 Ng4 13. Bxg7 Kxg7 14. Qd4+ Nf6 15.
O-O-O c5 $1 $10 {Laurentius-Alexander/Warschau/1935}) 11. Bxg7 Kxg7 12. Qd4+
$40 {>> /\0-0-0, h4 +- Alekhine}) 10. f4 (10. a4 $142 $1) 10... Nf7 11. a4 e5
$1 12. dxe6 Bxe6 13. a5 Nd7 14. a6 b6 15. Bb5 Qe7 16. Nge2 c5 (16... O-O-O 17.
Bc6) 17. Bf2 O-O-O (17... O-O 18. Nd5 Qd6 (18... Bxd5 19. Qxd5 Rfd8 20. O-O-O
Nf8 21. Qb7 $1) 19. Nec3 Rfd8 20. O-O $16 {/+-}) 18. Qa4 f5 19. e5 (19. Bc4 Nb8
20. Bxe6+ Qxe6 21. Nb5 Nc6 (21... Rd7)) 19... g5 $1 20. Bc4 (20. g3 gxf4 21.
gxf4 Ndxe5 $1 $40) 20... Ndxe5 (20... Nb8 21. Bxe6+ Qxe6 22. O-O {[%cal Rb2b4]
/\b4-> Alekhine} Nc6 23. b4 $1 {Mьller}) 21. Bxe6+ Qxe6 22. fxe5 Nxe5 23. O-O
Qc4 24. b4 $3 (24. Qxc4 Nxc4 {[%cal Rc4b2,Rd8d2] /\25.Nb2, 25.Rd2} 25. Nb5 Kb8
$13) (24. Qc2 Qd3 $13) 24... Qxb4 (24... cxb4 25. Nb5 $1 Qxe2 (25... Nf3+ 26.
gxf3 Bxa1 27. Rc1 Bc3 28. Rxc3 $18) (25... Kb8 26. Ned4 Nd3 27. Nxa7 Kxa7 28.
Nc6+ Ka8 29. Nxd8 Bxa1 30. Qd7 Qxa6 31. Qc6+ Kb8 32. Bxb6 $18 Be5 33. Bc7+ Ka7
34. Bxe5 Nxe5 35. Qc5+) 26. Nxa7+ (26. Rfe1 Qd2 27. Nxa7+ Kb8 28. Nc6+ $18)
26... Kb8 27. Nc6+ $18) 25. Qc2 {[%cal Ya1a4,Yc2e4] /\26.Ra4, 26.Qf5} Nd3 26.
Rfb1 Qc4 27. Ra4 Qe6 (27... Qf7 28. Bd4 $1 cxd4 (28... Bxd4+ 29. Nxd4 Rxd4 30.
Rxd4 cxd4 31. Qxd3 dxc3 32. Qxc3+ $18) 29. Nd5+ $1 Nc5 (29... Kb8 30. Nxb6 $1
$18) 30. Nxb6+ axb6 31. Rxb6 {[%cal Ra6a7] /\32.a7 +- Alekhine} Qc7 32. Qxf5+ {
[%cal Ra6a7] /\33.a7+-}) 28. Nb5 Kb8 $2 (28... Nxf2 $142 29. Kxf2 (29. Nxa7+ $2
Kb8 30. Qxc5 Rd1+ $1 $19) 29... Kb8 30. Ng3 Rhf8 31. Ra3 $1 {/\32.Re3, 32.Rd3
+- Alekhine} Qd5 $16 {/+- Mьller}) 29. Ned4 Qe4 (29... Bxd4 30. Bxd4 Rxd4 31.
Rxd4 Qe3+ 32. Kf1 cxd4 (32... Qxd4 33. Nxd4 cxd4 34. Qxd3 $18 {mate in five})
33. Qc7+ Ka8 34. Qb7#) 30. Nc3 Qe8 31. Qxd3 cxd4 32. Bxd4 Qe6 33. Qf3 Qf7 34.
Bxb6 $1 (34. Bxb6 $1 axb6 35. Rxb6+ Kc8 36. Qc6+ (36. a7 $145 Kd7 37. a8=Q Bf6
(37... Rxa8 38. Qb7+ Kd8 39. Rxa8#) 38. Ra7+ Ke8 39. Qfc6+ Kf8 40. Rxf7+ Kg8 (
40... Kxf7 41. Qxf6+ Kg8 42. Qaxd8#) 41. Qe8+ Rxe8 42. Qxe8#) 36... Qc7 37.
Rb8+ $1 (37. Qe6+ $145 $1 $18) 37... Kxb8 38. a7+ {Alekhine} Kc8 (38... Qxa7+
$145 $5 39. Rxa7 Bd4+ 40. Kf1 Bxa7 41. Nb5) 39. a8=Q#) 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.26"]
[Round "18"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "1-0"]
[ECO "C13"]
[Annotator "ChessBase"]
[PlyCount "101"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 (6... Bxf6 7.
Nxf6+ Qxf6 8. Nf3) 7. Nf3 (7. g3 f5 8. Nc3 Bf6 9. Nge2 Nc6 10. d5 exd5 11. Nxd5
Bxb2 12. Bg2 $1 O-O 13. O-O $10 {Fischer,R-Petrosian,T(3)/Buenos Aires cf/1971}
) 7... f5 8. Nc3 c6 (8... Bf6 9. Qd2 O-O (9... c5 10. Bb5+ (10. d5 exd5 11.
Nxd5 (11. O-O-O $1 {Klovans,J} Qb6 12. Bb5+ {/\ Nd5+/-}) 11... Bxb2 $13) 10...
Bd7 11. dxc5 (11. Bxd7+ Qxd7 12. d5 e5 $13) 11... a6 12. Bxd7+ Nxd7 13. O-O-O (
13. Na4 Qc7 14. O-O-O Nxc5 15. Nxc5 Qxc5 16. Qd7+ Kf8 17. Qd6+ Qxd6 18. Rxd6
Rg8 19. g3 Ke7 20. Rb6 Rab8 $10 {Wedberg,T-Andersson,U/Haninge/1988}) 13... Qc7
14. Qd6 Rc8 15. Nd5 Qxc5 16. Nxf6+ Nxf6 17. Qxc5 {1/2-1/2 Sokolov,A-Andersson,
U/Bruxelles/1988}) 10. O-O-O c5 11. d5 e5 12. h4 Bg7 {N} (12... Nd7) 13. d6 $1
{Klovans,J N} Be6 14. Ng5 Nc6 15. g4 fxg4 $2 (15... Nd4 16. gxf5 Bxf5 17. Bd3
Qd7 18. Bxf5 $16 (18. Nd5 Kh8 (18... Qxd6 $2 {Klovans,J} 19. Bxf5 Qxd5 20.
Bxh7+ Kh8 21. Kb1 $18) 19. Ne7 f6 $1 $13 (19... Bxd3 $2 {Klovans,J} 20. Qxd3 f5
21. Qc4 $16 {/\ Qg8, Nf7#}))) 16. Qd3 $18) 9. g3 Nd7 10. Bg2 Qc7 11. Qe2 b5 $6
(11... b6 $142) 12. Ne5 Bb7 (12... Nxe5 13. dxe5 {[%cal Rc3b5] /\Nb5} Bb7 $2
14. Nxb5 cxb5 15. Qxb5+) 13. O-O-O Nb6 14. Qh5 Rf8 15. f4 b4 16. Ne2 Nd5 17.
Bxd5 cxd5 18. Kb1 a5 19. g4 $1 fxg4 20. f5 exf5 21. Qxf5 a4 22. Rhe1 a3 23. b3
Bc8 24. Qxh7 Be6 25. Qd3 {[%cal Yd3b5] /\26.Qb5} O-O-O 26. c3 Kb7 27. Rc1 Qb6
28. cxb4 Bxb4 29. Rc6 Qa5 (29... Bxe1 $6 30. Rxb6+ Kxb6 31. Nc3 Bxc3 32. Qxc3
$40) 30. Rec1 Rc8 31. Nf4 Bd6 (31... Rxc6 32. Nxc6 Qb6 33. Nxe6 fxe6 34. Qh7+)
32. Nxe6 $1 $16 (32. Rxd6 $2 Rxc1+ 33. Kxc1 Qe1+ 34. Kc2 Rc8+ $14) 32... fxe6
33. Qh7+ Rc7 34. Rxc7+ Bxc7 35. Qd7 Qb6 36. Nd3 $18 Rd8 (36... Rf6 37. Nc5+ Kb8
(37... Ka7 38. Na4 $18) 38. Na6+ $18) 37. Rxc7+ Qxc7 38. Nc5+ Kb6 39. Qxc7+
Kxc7 40. Nxe6+ Kd7 41. Nxd8 Kxd8 42. b4 $18 Kd7 43. Kc2 Kc6 44. Kb3 Kb5 45.
Kxa3 Kc4 46. b5 Kxb5 47. Kb3 Ka5 48. a4 Ka6 49. Kb4 Kb6 50. a5+ Kc6 51. Ka4 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.27"]
[Round "19"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1-0"]
[ECO "D51"]
[Annotator "ChessBase"]
[PlyCount "153"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Nc3 e6 5. Bg5 Nbd7 6. e4 dxe4 7. Nxe4 Be7 8.
Nc3 O-O 9. Qc2 b6 (9... c5) 10. O-O-O Bb7 (10... c5 $2 11. dxc5 Bxc5 12. Ne5)
11. h4 $1 Qc7 12. Bd3 {[%cal Rd3h7] /\13.Bh7} Rfe8 13. Kb1 Nf8 (13... a6 $142 {
[%cal Yb6b5,Yc6c5] /\b5, c5}) 14. Bxf6 Bxf6 15. Ne4 c5 $1 (15... Be7 16. Neg5
f5 (16... g6 17. h5 $40) (16... h6 $4 17. Bh7+ Nxh7 18. Qxh7+ Kf8 19. Qh8#) 17.
Ne5) 16. Nxf6+ gxf6 17. Qd2 {[%cal Yd2h6,Yh1h3,Yh3g3] /\Qh6, Rh3-g3} Ng6 18. h5
(18. Qh6 Qf4) 18... Nf4 19. Rh4 Bxf3 $1 (19... Nxg2 20. Rg4+ Kf8 21. d5 $18) (
19... e5 20. dxe5 $16) 20. gxf3 e5 21. d5 Qd6 22. h6 Kh8 23. Qc2 Nxd3 $2 (23...
Ng6 $142) 24. Qxd3 Rg8 25. f4 $1 Rg6 26. Qf5 a6 27. Re1 exf4 $8 (27... Re8 28.
Rh5 b5 29. fxe5 fxe5 30. Rxe5 Rxe5 31. Qxe5+ Qxe5 32. Rxe5 Rxh6 33. b4 $1 $16)
28. Rxf4 Rxh6 29. Rfe4 Rg8 30. Re7 Rf8 31. a4 Rh4 32. Re8 Rxe8 33. Rxe8+ Kg7
34. Qc8 Kh6 (34... b5 35. Rg8+ Kh6 36. Qe8 Qc7 37. Qf8+ Kh5 38. Qg7 h6 39. Rh8
$16 {Kotov}) (34... Rxc4 $2 35. Rg8+ Kh6 36. Qh3+ Rh4 37. Qxh4#) 35. Rg8 {
[%cal Rc8e8] /\De8->} Qe7 $8 {[%cal Re7e4] /\Qe4->} 36. Ka2 b5 37. Rg3 $1 $18 {
[%cal Rc8g8] /\Qg8->+-} f5 (37... Rh5 38. Qg8) (37... Kh5 38. Qg8 h6 39. Qh7
Qd7 (39... Rg4 40. Qf5+ Rg5 41. Rh3#) 40. Rg6 $1 $18 {Kotov}) 38. Qxf5 $6 {
/\39.d6 Qd6 40.Qg5#} (38. Qg8 $1 Rg4 (38... f6 39. d6 Qd7 40. Qf8+ Kh5 41. Qxf6
$18) (38... Qf6 39. d6 Rd4 40. d7 $18) 39. Rh3+ Rh4 40. d6 Qf6 41. d7 Rxh3 42.
d8=Q $18) 38... f6 (38... Rd4 39. Rh3+ Rh4 40. Qf4+ Kh5 41. Rxh4+ Qxh4 42.
Qxh4+ Kxh4 43. d6 $19) (38... Rxc4 39. Rh3+ Rh4 40. Qf4+ Kh5 41. Rxh4+ Qxh4 42.
Qxh4+ Kxh4 43. d6 $18) (38... bxa4 39. d6 $1 Qd8 40. Qxc5 $18) 39. Re3 $6 $138
(39. Qe6 $1 Qxe6 (39... Qd8 40. Rg8 $18) (39... Re4 40. Qh3+ $18) 40. dxe6 Re4
41. Re3 Rxe3 42. fxe3 Kg7 43. cxb5 $18) 39... Qf7 40. Re6 $2 $10 (40. Qe6 $1
$18 Qf8 41. Rf3 Kg7 (41... Kg6 42. Rg3+ Kh5 43. Rg8 Qh6 44. Qf5+ $18) 42. Rg3+
Kh8 43. d6 Rd4 44. Qe7 $18 {Kotov}) 40... Kg7 41. Rd6 (41. Rxa6 Rxc4 42. axb5
Rb4 43. Rd6 Qg6 44. Qd7+ Kh6 $14) (41. d6 Rf4 42. Qh3 Kg6 43. Qd3+ Kh6 44. d7
Rd4 $14) 41... Qg6 42. Rd7+ (42. Qd7+ Kh6 43. Qe7 Rxc4 $1 44. Rxf6 Rxa4+ 45.
Kb3 Rb4+ 46. Kc3 Rc4+ 47. Kd2 Rd4+ 48. Ke3 Re4+ $1 49. Qxe4 Qxf6 $15) 42... Kh6
43. Qxg6+ Kxg6 44. axb5 axb5 (44... Rxc4 $2 45. b3 $1 Rc2+ 46. Kb1 $18 {Kotov})
45. cxb5 Ra4+ 46. Kb3 Rb4+ 47. Kc3 Rxb5 48. Rc7 h5 49. d6 Rb8 50. Rxc5 Rd8 51.
Rd5 h4 52. Kc4 Kf7 $10 53. Kc5 (53. Rd4 Ke6 54. Rxh4 Rc8+ (54... Rxd6 $2 55.
Re4+ Kf5 56. f3 $18) 55. Kd3 Kxd6 $10) 53... Ke6 54. Rd4 Rc8+ 55. Kb6 Kd7 56.
Rxh4 Rc6+ 57. Ka5 Rc2 58. b4 Kxd6 59. f3 (59. Rf4 Ke5 60. Rf3 f5 61. b5 Ke4 62.
Re3+ Kf4 {/\RxPf2, RxPb5=}) 59... Rc3 60. f4 Ra3+ 61. Kb6 Ke6 62. Rh5 (62. b5
Kf5 63. Kb7 Rb3 64. b6 Rb1 65. Kc7 Rc1+ 66. Kb8 Rb1 67. b7 Rb2 68. Rh7 Kxf4 {
[%cal Yb2b7] /\RxP= Kotov}) 62... Rf3 63. f5+ Ke5 64. b5 Kf4 65. Kc6 Kg4 66.
Rh1 Rc3+ 67. Kd5 Kxf5 68. Rb1 Rd3+ 69. Kc6 Rd8 70. b6 Kg4 $2 (70... Ke4 $1 $10)
71. b7 f5 72. b8=Q Rxb8 73. Rxb8 f4 74. Kd5 f3 75. Ke4 f2 76. Rf8 Kg3 77. Ke3
1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.10.30"]
[Round "20"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "1/2-1/2"]
[ECO "C79"]
[Annotator "ChessBase"]
[PlyCount "95"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Nf6 6. O-O Bd7 (6... Be7 7. d4
O-O 8. Nbd2 Nd7 9. Bxc6 bxc6 10. dxe5 Nxe5 11. Nxe5 dxe5 {1/2-1/2 Unzicker,
W-Smyslov,V/Donner mem-B (08) ;CBM 43 1994}) (6... Nxe4 7. d4 b5 (7... exd4 8.
Re1 d5 9. Nxd4 $16) 8. Bb3 {[%cal Rb3d5] /\Bd5}) 7. d4 Be7 8. d5 Nb8 9. Bc2 Bg4
10. c4 Nbd7 11. Nc3 Nf8 {[%cal Yf8g6,Yg6h4] /\Ng6, Nh4} 12. h3 $6 (12. Qd3 $142
) 12... Bd7 13. Ne1 {[%cal Yf2f4] /\f4} g5 $5 14. Bxg5 Rg8 15. f4 (15. Bxf6
Bxf6 16. Kh2 {/\Ng6-h4/f4~/=->g<->}) 15... exf4 16. Bxf4 Bxh3 17. c5 (17. e5 $5
) 17... Ng6 18. Bh2 Nh4 19. Ba4+ Kf8 20. Qd2 Rg6 21. Kh1 Rxg2 (21... Bxg2+ $2
22. Nxg2 Nxg2 23. Qf2 $16) 22. Nxg2 (22. Qh6+ $2 Kg8 23. Qxh4 Rxh2+ $1 {
[%csl Rh4][%cal Rf6g4]}) 22... Bxg2+ 23. Kg1 Ng4 (23... Bxf1 $2 24. Qh6+ Kg8
25. Qxh4 Bb5 26. Bc2 {[%cal Yc2h7,Rh4h7] /\e5->+-}) 24. Qf4 Ne5 $1 (24... Bxf1
25. Rxf1 Ne5 26. Qh6+ Kg8 27. Bxe5 dxe5 28. Rxf7 Bxc5+ 29. Kh1 Kxf7 30. Qxh7+
Kf8 31. Qh6+ Kf7 32. d6 cxd6 33. Bb3+ Ke8 34. Be6 Qe7 35. Nd5 Qf8 36. Qh5+ Kd8
37. Qxh4+ Ke8 38. Nc7# {Yates}) 25. Qh6+ Kg8 26. Bxe5 dxe5 27. Rxf7 Bxc5+ (
27... Kxf7 28. Qxh7+ Kf8 29. Qh6+ Kf7 30. d6 cxd6 31. Bb3+ Ke8 (31... d5 32.
Nxd5 Bxc5+ 33. Kh2 Ke8 34. Qg7 Bxe4 35. Nf6+ Qxf6 36. Qxf6 $18) 32. Be6 $18)
28. Kh2 Kxf7 29. Qxh7+ Kf8 30. Qh8+ Kf7 31. Qh7+ Kf8 32. Qh6+ Kf7 33. d6 cxd6
34. Qh7+ Kf8 35. Qh8+ Kf7 36. Qh7+ Kf8 37. Qh6+ Kf7 38. Bb3+ Ke8 39. Be6 Nf3+
$8 40. Kxg2 Qg5+ 41. Qxg5 Nxg5 42. Bf5 Kf7 43. Rf1 Kg7 44. Nd5 a5 45. Kg3 Rf8
46. Rh1 Rg8 47. Rf1 Rf8 48. Rh1 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.11.01"]
[Round "21"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1-0"]
[ECO "E22"]
[Annotator "ChessBase"]
[PlyCount "97"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Bxc5 6. Nf3 d5 (6... b6 7. Bg5
Bb7 8. Rd1 O-O 9. e3 Be7 10. Be2 Na6 11. O-O Nc5 12. Qc2 Nce4 13. Bxf6 Nxf6 14.
e4 d6 {Piket,J-Karpov,An/Roquebrune 30' (10) 1992/1/2-1/2 (72)}) 7. cxd5 exd5
8. Bg5 Be6 9. Bxf6 gxf6 10. O-O-O (10. Qxb7 Nd7 $44 {@}) 10... Nd7 11. Nd4 $1
$16 (11. Nxd5 Rc8 12. Kb1 Bxf2 {[%csl Rc2][%cal Ye6f5,Rf5b1]}) 11... O-O 12. e3
Rc8 13. Kb1 Ne5 14. Nxe6 $18 {Alekhine considered this move for 30 minutes.}
fxe6 15. Be2 (15. f4 $2 Ng4) (15. Nxd5 $2 exd5 16. Rxd5 Qb6) 15... Kh8 (15...
Nc6 16. Nxd5 exd5 (16... Na5 $1 $13) 17. Rxd5 Qb6 18. Rxc5+ $18) (15... Nf7 16.
f4 f5 17. g4 $40) 16. f4 $1 Nc6 17. f5 Bxe3 18. fxe6 d4 19. Nd5 Qe8 (19... Na5
$2 20. e7 $18) (19... Bh6 20. Bb5 {[%csl Rd4] ><d4}) 20. Nxe3 dxe3 21. Qxe3 Ne5
22. Qh3 Rc6 (22... Rc7 $142) 23. Bb5 $18 Qg6+ 24. Ka1 Rc7 25. Bd7 Rd8 26. Rc1
Rxc1+ 27. Rxc1 Qg5 28. Rd1 Nc6 29. a3 Qe5 30. Qf3 Rb8 31. Qf2 {[%cal Rd1e1] /
\Re1+-} (31. Bxc6 bxc6 32. Qxc6 $4 Qxb2#) 31... Ne7 32. Re1 Qg5 33. Qxa7 Rg8
34. Qd4 Rg6 35. g3 Qa5 36. Rf1 Kg7 37. Rc1 Qe5 38. Qb4 (38. Qxe5 $18) 38... Nd5
39. Qxb7 Kh6 40. Qb3 Rg8 41. Rc5 Qe1+ 42. Ka2 Ne7 43. Qf3 Rg6 44. Qf4+ Kg7 45.
Qd6 Ng8 46. Ba4 Kh8 47. Rc8 Rg7 48. e7 Qxe7 49. Qxe7 (49. Qxe7 Rxe7 50. Bb3 Rg7
51. Rxg8+ Rxg8 52. Bxg8 Kxg8 53. a4 $18) 1-0

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.11.03"]
[Round "22"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "0-1"]
[ECO "C76"]
[Annotator "ChessBase"]
[PlyCount "78"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 (5. c4 Bd7 6. Nc3 Nf6 7. d4 Nxd4
8. Bxd7+ Qxd7 9. Nxd4 exd4 10. Qxd4 Be7 $10 {[%cal Ye8g8,Yh8f8] /\11... 0-0}) (
5. Bxc6+ $142) 5... Bd7 6. d4 g6 7. Bg5 {? Bogoljubow} f6 8. Be3 Nh6 9. O-O (9.
b4 Bg7 10. Bb3 Qe7 11. O-O Nf7 12. Bd5 exd4 (12... O-O $2 13. dxe5 fxe5 14. Ng5
Ncd8 15. Nxf7 Nxf7 16. Bxb7 $18) 13. Nxd4 O-O 14. Nd2 Kh8 15. Nxc6 bxc6 16. Bb3
Ne5 17. Bd4 a5 $1 {N} (17... f5) 18. bxa5 (18. h3 $2 a4 $1 19. Bc2 c5 20. bxc5
dxc5 21. Bxe5 Qxe5 22. Rc1 Bh6 $17 {Mokry,K}) (18. f4 $5 c5 $8 19. bxc5 dxc5
20. Bf2 Ng4 21. Qe2 Nxf2 $13) 18... c5 (18... Rxa5 $5) 19. Bxe5 Qxe5 20. Rc1
Bh6 $10 {Kindermann,S-Mokry,K/Trnava/1987}) 9... Bg7 10. h3 (10. Nbd2 Ng4) (10.
dxe5 $5 Nxe5 (10... fxe5 11. Bg5) (10... dxe5 11. Bc5)) 10... Nf7 11. Nbd2 O-O
$10 12. dxe5 (12. Re1 Qe7 13. Bc2 Ncd8 14. Nf1 Ne6 15. Qd2 Kh8 16. N3h2 (16. b4
) 16... Rg8 (16... Nfg5 17. Ng3 {/\ Ne2, f4->}) 17. Ng3 h5 18. Ne2 Raf8 19. f4
Bh6 $1 20. Nf3 $6 (20. fxe5 Bxe3+ 21. Qxe3 fxe5 22. d5 Qg5 23. Qxg5 Nexg5 $10)
20... g5 21. fxg5 fxg5 22. Ng3 Nf4 23. dxe5 dxe5 24. Nf5 Bxf5 25. exf5 g4 $1
26. hxg4 $17 {Sokolov-Salov/Leningrad/1987} (26. Nxe5 $1 Qxe5 27. Bd4 Nxh3+ 28.
gxh3 gxh3+ 29. Kh1 Bxd2 30. Bxe5+ Nxe5 31. Rxe5 Bf4 $15)) 12... dxe5 (12...
fxe5 13. Bb3 h6 14. a4 {[%cal Yd2f1,Yf1e3,Ye3d5] /\Nf1, Bd2, Ne3, Nd5}) 13. Bc5
Re8 14. Bb3 b6 15. Be3 Qe7 16. Qe2 (16. Bd5 Rad8 17. Qe2 Nb8 {[%cal Yd7e6] /
\Be6}) 16... Ncd8 17. Bd5 Bc6 (17... c6 $2 18. Bxf7+ Nxf7 19. Bxb6) 18. c4 $2 (
18. Bxc6 Nxc6 19. Rfd1 $15) 18... Bxd5 19. cxd5 (19. exd5 f5) 19... f5 $1 20.
Nc4 Nb7 21. Rac1 Rad8 {[%cal Rf5e4] /\fe destroying the centre.} (21... Red8 $6
{[%csl Re7] ףe7} 22. exf5 gxf5 23. Bd4 $1 Rxd5 24. Rfe1 e4 25. Bxg7 Kxg7 26.
Ne3 $1 $16 {Alekhine}) 22. d6 Nbxd6 23. Nxd6 Rxd6 (23... Nxd6 24. Bg5 Bf6 25.
Bxf6 Qxf6 26. exf5 gxf5 27. Rxc7 $14) 24. Qxa6 Qd7 $1 {[%cal Rf5f4] /\f4} 25.
Rc2 c5 26. a4 f4 $1 27. Bd2 g5 {[%cal Yg5g4,Yd6g6] /\g4, Rg6->} 28. Qb5 $8 (28.
b4 g4 29. hxg4 Qxg4 $19 {with a mating attack. Alekhine}) 28... Qxb5 29. axb5
Rd3 $1 30. Ra1 Nd6 31. Ra6 Rb8 32. Bc3 (32. Nxg5 Bf6 (32... Nxb5 {[%cal Yb5d4,
Yb5d6] /\Nd4,Nd6}) 33. Nf3 Nxe4 {This is a winning position. Alekhine}) (32.
Rc3 c4 $1 33. Rxd3 cxd3 34. Ra3 Nxe4 35. Rxd3 Ra8 $1 36. Ra3 Rd8 $19) 32...
Nxe4 33. Bxe5 Bxe5 34. Nxe5 Rd1+ 35. Kh2 Nd2 $3 36. h4 (36. b4 $4 Nf1+ 37. Kg1
Ng3+ 38. Kh2 Rh1#) (36. g4 Re8 37. Nc6 Nf3+ 38. Kg2 Nh4+ {/\39... Re8-e1+-}) (
36. g3 Re8 37. Nc6 (37. gxf4 gxf4 38. Ng4 (38. Nd3 Nf3+) 38... Nf3+ 39. Kg2
Nh4+ 40. Kh2 Ree1 $18 {[%cal Re1h1] /\Rh1#}) 37... Nf3+ 38. Kg2 Ne1+ $19) 36...
Re8 $1 37. Nf3 (37. Ng4 Ree1 (37... Nf1+ 38. Kh3 h5 39. Nf6+ Kf7 40. hxg5 Ne3
41. Kh2 (41. Rc3 Rh1#) (41. Nxe8 Rh1#) 41... Nxc2 (41... Nf1+ 42. Kh3 Ng3 43.
Nxh5) (41... Ng4+ 42. Nxg4 hxg4 43. Rxb6 Ree1) 42. Nxe8 Kxe8 $19 {Euwe}) 38.
Kh3 Rh1+ 39. Nh2 h5 $1 40. hxg5 Nf1 41. Ra8+ Kg7 42. Ra7+ Kg6 43. Rg7+ Kxg7 44.
Rxc5 Rxh2#) 37... Nxf3+ 38. gxf3 Ree1 39. Kh3 h5 0-1

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.11.05"]
[Round "23"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1/2-1/2"]
[ECO "D46"]
[Annotator "ChessBase"]
[PlyCount "165"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 6. Nbd2 Be7 7. O-O O-O 8. e4
dxe4 9. Nxe4 b6 (9... Nxe4 10. Bxe4 Qc7 11. Bc2 {[%cal Yd1d3] /\Qd3->}) 10. Qe2
(10. b3 c5 11. Bb2 Bb7 12. Qe2 cxd4 13. Bxd4 (13. Nxd4 Nc5 14. Nxc5 Bxc5 15.
Nf3 Qc7 16. Ne5 Rad8 17. Rad1 Rd6 18. Ng4 Nxg4 19. Qxg4 f6 20. Bc2 Qe7 21. Rxd6
Bxd6 22. Re1 e5 23. h4 Rd8 24. h5 Bb4 25. Rd1 Rxd1+ 26. Qxd1 Qd6 $10) 13... Qc7
$10) (10. Nxf6+ Nxf6 11. b3 Bb7 12. Bb2 c5 13. dxc5 Bxc5 14. Qe2 Bxf3 15. Qxf3
Bd4 16. Bxd4 Qxd4 17. Rfd1 Qc5 18. a3 {1/2-1/2 Lalic,B-Nogueiras,J/Saint John
op-1 1988}) 10... Bb7 11. Bf4 $6 (11. Rd1 $142 {Vidmar} Qc7 12. Bg5 (12. b3)
12... c5 13. Bh4 {[%cal Yh4g3] /\Bg3}) 11... c5 $1 $10 12. dxc5 $6 $15 (12.
Nxf6+ $10) (12. Rfd1 Nxe4 13. Bxe4 Qc8) 12... Nxe4 13. Bxe4 Bxe4 14. Qxe4 Nxc5
15. Qe3 Qd3 16. b4 $1 (16. b3 Rfd8 $17) 16... Qxe3 17. Bxe3 Nd3 18. a3 Nb2 (
18... Rac8 19. Rfd1 Rfd8 20. Rd2 Rxc4 $2 21. Rad1 $18) 19. Rac1 Rfc8 20. c5 (
20. Nd2 $142) 20... bxc5 21. bxc5 Na4 (21... Nd3 $2 22. Rc3 Nxc5 $2 23. Rfc1
$18) 22. Rc2 Nb6 $1 (22... Nxc5 $2 23. Rfc1 $16) 23. Rb1 Nd5 24. Bd4 f6 $1 {
[%csl Rc5][%cal Re6e5] /\e5 ><c5} 25. c6 a5 (25... Bxa3 26. Ra1 Bd6 27. Rxa7
Rxa7 28. Bxa7 Ne7 $17 {/=/+ Kotov}) 26. Bb2 Rab8 27. Rd1 Kf7 28. Nd4 g6 29. g3
Rb6 30. Kg2 a4 (30... e5 31. Nf5) 31. Re2 Nc7 (31... e5 32. Nf3 Ke6 33. Bxe5
$18) 32. f4 Rd8 33. Rc2 Rd5 34. Rdd2 Bd6 35. Nf3 Ke7 36. Rxd5 Nxd5 37. Kf2 Rb5
38. Bd4 $2 (38. Ke2 Rc5 39. Rxc5 Bxc5 40. Kd3 Kd6 41. Nd4 Bxd4 42. Bxd4 Kxc6
43. Kc4 $16 {/=/+ Kotov}) 38... Kd8 $1 (38... Bxa3 $2 39. Ra2 Rb3 $2 40. Rxa3
Rxa3 41. Bc5+ $18) 39. Nd2 (39. Rc4 $142) 39... Bxa3 40. Ra2 Bb4 41. Nc4 Bc3 $1
(41... a3 42. Nxa3 Ra5 43. Bb2 Nc3 44. Ra1 $17 {/=/+ Kotov}) 42. Bxc3 Nxc3 43.
Rc2 Nd5 44. Nd6 Rb3 $6 (44... Rb6 $142 45. Rc5 Ra6) 45. Rc5 {[%cal Yc5a5] /\Ra5
} Rb6 (45... Kc7 $2 46. Nb5+ $18) 46. Nb5 Nc7 47. Nxc7 Kxc7 $19 48. Ra5 Rb2+
49. Ke3 Rb4 $2 (49... Ra2 $1 50. Ra6 a3 51. Kd4 (51. h4 Ra1 52. Kf3 a2 53. Kg2
e5 $19) 51... Rxh2 52. Rxa3 Kxc6 53. Ra6+ Kd7 54. Ra7+ Ke8 55. Kc5 (55. Ra6 Kf7
56. Ra7+ Kg8 57. Ra6 Re2 $19) 55... Rd2 $1 56. Rxh7 Rd5+ 57. Kc4 Kf8 $19 {
Bogoljubow}) (49... Rxh2 $2 50. Rxa4 Kxc6 51. Ra6+ Kd5 52. Ra5+ Kc4 53. Ra6 $10
) 50. Ra6 e5 51. fxe5 fxe5 52. Kd3 h5 53. Kc3 Rg4 54. Ra5 Kxc6 55. Rxe5 Kd6 56.
Ra5 $1 Ke6 57. Kd3 h4 58. Ke2 Rb4 59. Kf3 Kf6 60. gxh4 Rxh4 61. Kg3 g5 62. Ra6+
Kf5 63. Ra5+ Kg6 64. Ra8 Rb4 65. h3 Rc4 66. Ra7 Kf6 67. Ra6+ Ke5 68. Ra5+ Kd4
69. Kg4 $1 Kc3+ 70. Kxg5 Kb4 71. Ra8 Rc5+ 72. Kg6 Ra5 73. Rb8+ Kc3 74. h4 a3
75. Rb1 Ra6+ 76. Kg7 a2 77. Ra1 Ra7+ 78. Kg6 Kb2 79. Rxa2+ Rxa2 80. h5 Kc3 81.
h6 Rg2+ 82. Kf7 Rh2 83. Kg7 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.11.10"]
[Round "24"]
[White "Bogoljubow, Efim"]
[Black "Alekhine, Alexander"]
[Result "1/2-1/2"]
[ECO "C13"]
[Annotator "ChessBase"]
[PlyCount "76"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 Nd7 8.
Qe2 (8. Bc4 Be7 9. Qe2 c6 10. O-O-O Qc7 11. Kb1 b6 12. h4 h6 13. Ng3 Bb7 14.
Ne5 Rf8 15. Nxf7 Rxf7 16. Bxe6 Rf8 17. Nf5 Bf6 18. d5 cxd5 19. Bxd5+ Kd8 20.
Nd6 Bxd5 21. Rxd5 a6 22. Rhd1 Ra7 23. Qe6 Be7 24. Nf5 {1-0 Short-Nikolaiczuk/
Dortmund (3) 1986}) (8. Bd3 $142 {/\c3, Qe2/Qc2, 0-0/0-0-0}) 8... O-O 9. O-O-O
Be7 $1 10. Kb1 b6 11. g4 Bb7 12. Rg1 c5 13. g5 (13. dxc5 Bxe4 14. Qxe4 Nxc5 $10
) 13... Qc7 14. Bh3 Kh8 15. Rg4 {[%cal Yg4h4] /\Rh4->} f5 $1 16. gxf6 Nxf6 17.
Nxf6 Bxf6 18. Bg2 Rad8 19. c3 (19. Qxe6 $2 Bc8) 19... cxd4 20. Nxd4 Bxd4 21.
cxd4 Bxg2 22. Rxg2 Qf7 23. Qe4 Qf6 (23... Qf5 24. Qxf5 (24. Re1 $2 Rxd4)) 24.
a3 Rd5 25. Rd3 Qf5 26. f3 h6 {[%cal Ye6e5] /\e5} 27. Kc2 Rc8+ (27... e5 28.
Qxd5 (28. Qxf5 $10) 28... Rc8+ 29. Kd2 Qf4+ 30. Ke1 (30. Kd1 Qc1+ 31. Ke2 Rc2+
32. Rd2 Qxd2+ 33. Kf1 Rc1#) 30... Rc1+ 31. Rd1 Qe3+ 32. Re2 Qg1+ $40 {-+ Kotov}
) 28. Rc3 Rxc3+ 29. bxc3 Kg8 30. Kd3 Kf7 31. a4 Ra5 32. Ra2 Qh3 $1 33. Kc4 e5 (
33... Qf1+ 34. Kb4 (34. Qd3 $4 b5+ $19) 34... Rf5 35. Re2 $1 $13 (35. Qb7+ $6
Kf6 36. Qxa7 b5 $3 $40)) 34. d5 (34. dxe5 $4 Qe6+ $19) 34... Qd7 35. Qxe5 Rxa4+
36. Rxa4 Qxa4+ 37. Kd3 Qd1+ 38. Kc4 (38. Ke3 $4 Qe1+ 39. Kd4 Qxe5+ 40. Kxe5 Ke7
41. f4 b5 42. Kd4 Kd6 $19) 38... Qa4+ 1/2-1/2

[Event "World-ch13 Alekhine-Bogoljubow +11-5=9"]
[Site "GER/NLD"]
[Date "1929.11.11"]
[Round "25"]
[White "Alekhine, Alexander"]
[Black "Bogoljubow, Efim"]
[Result "1/2-1/2"]
[ECO "D30"]
[Annotator "ChessBase"]
[PlyCount "110"]
[EventDate "1929.09.06"]
[EventType "match"]
[EventRounds "25"]
[EventCountry "GER"]
[SourceTitle "MainBase"]
[Source "ChessBase"]
[SourceDate "1999.07.01"]
[SourceVersion "2"]
[SourceVersionDate "1999.07.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. e3 e6 5. Bd3 Nbd7 6. Nbd2 Be7 {Bogoljubow} (
6... Bd6 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Qc7 (10... Nf6 11. Bc2 c5
(11... h6 12. b3 (12. Bd2) (12. Be3) 12... c5 13. Bb2 cxd4 (13... b6 14. Qd3
Bb7 15. d5 $16) 14. Qxd4 Qe7 15. Rad1 Rd8 16. Qh4 Bc7 17. Rxd8+ Qxd8 18. Rd1
Qe7 19. Ne5 $16 Kf8 20. Ng4 Ne8 21. Bxg7+ $1 Nxg7 22. Nf6 $3 (22. Qxh6 $2 f5 $1
$17) 22... Qc5 (22... Bd8 23. Qxh6 Qxf6 24. Qh8+ $18) (22... Nf5 23. Bxf5 Kg7
24. Qg4+ $1 $16) 23. Nh7+ Ke8 (23... Kg8 24. b4 $3 Qb6 (24... Qe5 25. Rd8+ $1
$18) (24... Qxb4 25. Rd8+ $1 Bxd8 26. Qxd8+ Ne8 27. Nf6+ $1 Kg7 28. Nxe8+ Kg8
29. Nf6+ Kg7 30. Nh5#) 25. c5 $16) 24. Qf6 Qh5 25. h3 Qe5 26. Rd8+ $1 Bxd8 27.
Qxe5 f6 28. Bg6+ Kd7 29. Nf8+ {1-0 Meszaros,A-Farago,S/Budapest/989}) 12. Bg5
h6 13. Bh4 cxd4 14. Qxd4 g5 15. Rad1 Bxh2+ 16. Kxh2 Qxd4 17. Rxd4 gxh4 18. Ne5
b6 19. Rxh4 Bb7 20. Re1 Rfd8 21. Rf4 Rd2 22. Rxf6 Rxc2 23. Re3 Rf8 24. Rg3+ Kh7
{1-0 Csom,I-Bellon Lopez,J/Malaga 31/429 1981}) (10... h6 11. Bc2 c5 $6 {N} (
11... e5 12. b3 (12. a3 {N} f5 13. c5 Bc7 14. Bb3+ Kh8 15. Ng5 Nxc5 $8 16. dxc5
$1 Qxd1 17. Rxd1 hxg5 18. Bxg5 $14 {_|_ +/= Gagarin,V-Volodin,V/USSR 43/(535)
1987}) (12. Qd3 f5 13. c5 $1 (13. Qb3 {- 43/(535)}) 13... Bc7 (13... Be7 14.
Nxe5 Nxe5 15. dxe5 Qxd3 16. Bxd3 Bxc5 17. Bc4+ Kh8 18. e6 $1 Re8 19. Re1 $16)
14. dxe5 Nxe5 (14... Nxc5 15. Qc4+ Ne6 16. Be3 $16) 15. Qb3+ Kh8 16. Bf4 Nxf3+
17. Qxf3 Bxf4 18. Qxf4 Qf6 19. Rfe1 $1 $16 Qxb2 $6 (19... Be6 20. Re5 g5 $5 $16
(20... Rae8 21. Rae1 Qf7 22. h3 Bd7 23. Rxe8 Rxe8 24. Rxe8+ Qxe8 25. Bxf5 Bxf5
26. Qxf5 $18)) 20. Bb3 $16 {Sorokin,M-Shabanov,Y/USSR/1991}) 12... f5 $6 13.
dxe5 Nxe5 14. Bb2 Qf6 $2 {N} (14... Nxf3+ {- 52/(422)}) 15. Kh1 f4 16. h3 Bf5
17. Bxf5 Qxf5 18. Qd4 $1 {/^a1-h6, ><g7, Ne5} (18. Qxd6 $2 Nxf3) 18... Rfd8 $18
{Petrakov-Volodin/Russia/1992} (18... Rae8 19. Rae1 $18) (18... Rfe8 19. Rae1
$18) (18... Rad8 19. Nxe5 Bb4 20. Qxa7 Rd2 21. Nxc6 $18) (18... Rfd8 19. Nxe5
Bb4 20. g4 $1 fxg3 21. Qg4 Qc2 22. Nxc6 $1 $18 {Petrakov})) 12. b3 (12. Qd3 Nf6
13. Be3 Qc7 14. Rad1 b6 $14) 12... Qc7 13. Bb2 Rd8 14. Qe2 (14. dxc5 Bxc5 15.
Qe2 $14) 14... Nf8 15. Rad1 $14) 11. Re1 (11. Bc2 Re8 12. Qd3 Nf8 13. Re1 (13.
c5) 13... e5 14. dxe5 Bxe5 15. Bf4 $1 Bf5 16. Qxf5 Bxf4 17. g3 Bd6 18. c5 Be7
19. Ne5 $16) 11... c5 12. dxc5 $1 Bxc5 13. a3 Nf6 14. b4 Be7 15. Bb2 Qxc4 16.
Ne5 Qb5 17. Bd3 Qe8 18. Qf3 $16 {Bernard,Ch-Andruet,G/Lyon (open)/1988}) 7. O-O
O-O 8. b3 $5 (8. e4 $5) 8... b6 9. Bb2 Bb7 10. Qe2 c5 (10... Re8 $6 11. Rad1
Bf8 12. Ne5 $16 {/\ f4} Nxe5 13. dxe5 Nd7 14. f4 Nc5 15. Bc2 b5 16. Nf3 $1 {
/\ Bh7} h6 $1 (16... g6 $6 17. Ng5 $1 bxc4 18. bxc4 Ba6 19. Qg4 $1 Bxc4 20.
Nxh7 $1 Kxh7 21. f5 exf5 22. Rxf5 $18 d4 23. Rxd4 Be6 24. Rxd8 Raxd8 25. Qh4+
Kg8 26. Rxf7 $1 Kxf7 27. Qf6+ Kg8 28. Qxg6+ Bg7 29. Ba3 $1 {1-0 Franco,
Z-Tukmakov,V/Las Palmas/1992}) 17. cxb5 cxb5 18. Nd4 b4 19. Qh5 Qc7 20. Rf3 Ne4
21. Bxe4 dxe4 22. Rg3 Kh7 $16 {Tukmakov}) 11. Rfd1 cxd4 12. exd4 dxc4 13. bxc4
(13. Nxc4 {[%csl Rd8][%cal Yc4e5] /\Nce5->c-<->ףd8}) 13... Re8 14. Ne5 (14.
Rac1 $142 {[%cal Yd3b1] /\15.Bb1}) 14... Nxe5 15. dxe5 Nd7 16. Ne4 Qc7 17. Nd6
$5 (17. Nf6+ $6 Nxf6 $1 18. exf6 Bxf6 19. Bxf6 gxf6 20. Qh5 Qc6 $1 21. Qxh7+
Kf8 22. f3 Ke7 23. Bg6 Rf8 {[%cal Yc6c5,Yc5g5] /\24... Qc5, 25... Qg5}) (17.
Ng3 $14) 17... Bxd6 18. exd6 Qc6 19. Qg4 e5 20. Qg3 Rad8 21. Be2 Re6 22. Bf3
Qc8 23. Bxb7 Qxb7 24. Rd5 Rg6 25. Qh3 (25. Qh4 Re8) 25... Qc6 26. Rc1 Re8 $2 (
26... Rxd6 27. Rcd1 Nf8 $1 (27... Nf6 28. Rxd6 Rxd6 29. Rxd6 Qxd6 30. Qc8+ Qf8
31. Qxf8+ Kxf8 32. Bxe5 $10) (27... Rxd5 $2 28. Rxd5 $16 {[%csl Rd7] פd7}) 28.
Qd3 Rg6 $1 29. Bxe5 (29. Qxg6 Rxd5 $19) 29... Rc8 $17 {Kotov}) 27. Rcd1 h6 28.
g3 Ree6 29. Qh4 $1 Kh7 (29... Rxd6 30. Qd8+ Kh7 31. Rxd6 Rxd6 32. Rxd6 Qxd6 33.
Bxe5 Qxe5 34. Qxd7 Qa1+ 35. Kg2 Qxa2 36. Qf5+ Kg8 37. Qc8+ Kh7 38. Qf5+ $10 {
Kotov}) 30. Qe4 Qa4 $1 (30... Rxd6 31. Bxe5 Rde6 32. f4 Nxe5 33. f5 Nf3+ 34.
Qxf3 $10 {Kotov}) (30... Nf6 31. Qd3) 31. R5d2 Nc5 $5 32. Qf5 Nd7 $8 33. Qxf7
Rgf6 34. Qh5 Qxc4 35. Rc1 Qxa2 36. Qd1 {[%cal Rc1c7,Rb2e5,Rc1a1] /\37.Rc7, 37.
Be5, 37.Ra1} Qa5 (36... Qa6 37. Rc7 Rf7 38. Qc2+ {[%cal Rc2c6] /\39.Qc6}) 37.
Ra1 (37. Qc2+ Kh8 (37... g6 $2 38. Qc7) 38. Qc8+ Rf8 39. Qxd7 Qxd2 40. Qxe6
Qxf2+) 37... Qc5 38. Rxa7 Rf7 (38... Rxd6 39. Qb1+ Kh8 40. Ba3 $18 {Kotov} Qxa3
41. Rxa3 Rxd2 42. f3 $18) 39. Qg4 $2 $138 (39. Qb3 $1 Ref6 40. Qd3+ Kg8 (40...
g6 41. Ba3 Qc6 42. Rc2 Qf3 43. Qxf3 Rxf3 44. Rcc7 $16) 41. Ba3 Qc6 42. Rc2 Qf3
43. Qxf3 Rxf3 44. Rcc7 $16) 39... Rg6 40. Qd1 (40. Qe4 $2 Nf6 41. Qa8 Rxa7 42.
Qxa7 Ne4 43. d7 Rd6 44. Re2 Qd5 $17 (44... Rd1+ 45. Kg2 Qc6 46. d8=N Rxd8 47.
f3 Rd2 $19)) 40... e4 $1 {[%cal Re4e3] /\e3!} 41. Qb3 (41. Bd4 $142 Qf5 (41...
Qxd6 $2 42. Be3 $18) 42. Be3 $14) 41... Rf3 42. Qd5 (42. Qd1 e3 43. Bd4 Rxf2
44. Bxc5 Rxd2 45. Qe1 Nxc5 $10 {Kotov}) 42... Qxd5 43. Rxd5 Rd3 44. Bd4 $2 (44.
Rf5 Rdxd6 45. Rf7 Nf6 46. Bxf6 Rdxf6 47. Rxf6 Rxf6 48. Re7 $10 {Kotov}) (44.
Rxd3 $2 exd3 45. Rxd7 d2 $19) 44... Nf6 $1 45. Bxf6 (45. d7 $2 Nxd5 46. d8=Q
Rd1+ 47. Kg2 Nf4#) 45... Rxd5 46. Be7 Rgxd6 (46... e3 47. fxe3 Rd2 48. Kf1 $1
Rxh2 49. Ra4 $1 $16 {[%csl Gd6] o^d6}) 47. Bxd6 Rxd6 48. Re7 Rd4 49. Kf1 Rb4
50. Re6 Kg8 51. Ke2 Kf7 52. Rc6 h5 53. h4 Ke7 54. Ke3 b5 55. Rb6 Kf7 1/2-1/2

