Bert Kramer wint grote Bukh-Burg Quiz!

Bert Kramer heeft met geruime voorsprong de Bukh-Burg Quiz gewonnen. Hij kan binnenkort op een goede fles wijn rekenen. Gefeliciteerd!

Zijn antwoorden op de eerste 2 stellingen zijn voortreffelijk:
“Bij stelling 1 kies ik voor B…..Kc4

A….g5 biedt wellicht mogelijkheden ten koste van materiaal om de toren op g4 te mobiliseren. Een pion achter in een toreneindspel hoeft niet fataal te zijn, echter je schept zo wel een mijnenveld van mogelijkheden. En wat dat betreft op mijn leeftijd beginnen je hersens te krimpen, vandaar! De zwarte toren staat wel zeer onbeweeglijk, echter dekt pion g6 en valt pion g3 aan. Kortom hij doet iets. Als de witte koning gaat lopen dan zal de toren de dekking van g3 over moeten nemen. Waar moet de toren heen, wat kan de witte koning doen? Welnu…..Kc4.
Bij stelling 2 kies ik voor A. Tc2 . De zwarte toren op a1 kan eventueel van achteren aanvallen. Dat is geen wet van Meden of Perzen maar d’ouwe Euwe deed in zijn boekjes van ’48 en ’50 (toen moest als ik goed heb je vader nog geboren worden) vaak aanbevelingen in die richting. Tc8 valt om dezelfde reden af. De pion naar h6 lijkt me prematuur. Blijft staan Tc3 maar bij schuiven over lijn 3 maak je eventueel slapende honden wakker d.w.z. de zwarte koning op e5 of zijn agricola op f5. Met een pion op f4 kun je gaan ruilverkavelen met e3 of g3 als onderpand. Voilà dit zijn mijn onderbondse overwegingen of het hout snijdt is een ander verhaal. Overigens vind ik jouw ‘schaakquiz’ een leuk en goed initiatief. Ik moest weer eens hele oude boekjes napluizen, en zo kwam ik aldus tot de conclusie een reeks welhaast elementaire denkfouten te produceren. Dat is in de onderbond schering en inslag met alle kwakende consternatie van dien wanneer de één bij winst zijn grootmeesterlijke inzichten gaat debiteren, waar de ander alle reden heeft daar hardop aan te twijfelen.
Groeten,
Bert Kramer”

Zie hieronder voor mijn analyse van de gehele partij:
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[Event “Haarlem”]
[Site “?”]
[Date “2012.08.27”]
[Round “3”]
[White “Zherebukh, Yaroslav”]
[Black “Burg, Twan”]
[Result “1/2-1/2”]
[ECO “B12”]
[WhiteElo “2629”]
[BlackElo “2471”]
[PlyCount “178”]
[EventDate “2012.??.??”]
[SourceDate “2004.06.07”]1. e4 c6 $1 {For this tournament I put all the time that I had in learning the
Caro-Kann. I saw that Zherebukh, Nijboer and Klein all played the advance
variation in the Caro-Kann, so I decided to check the gambit variation 3..c5
deeply. As a starting point I used the file of JF, which was based on all the
games of Khenkin with this variation. I like about this variation that you can
really play for a win with it, and that it is a big advantage there to know it
better.} 2. d4 d5 3. e5 c5 $1 {My opponent never faced this before, so I had
to be ready for all variations.} 4. dxc5 Nc6 5. a3 $5 {Although this is played
in less than 1% of the games, I already gave it some analysis! The idea is
that c5 is firmly protected, and that the white bishop is on the long diagonal,
especially after the pawn on e5 is taken.} Nxe5 (5… e6 $5 6. b4 $6 (6. Nf3
Bxc5 7. b4 Bb6 8. Bb2 Nge7 9. Bd3 O-O 10. O-O Ng6 {Is the other way to play
for black. Ideas are Nf4 or to open the position with f5. See repertoire.} 11.
g3 d4 $1) 6… a5 $1) 6. b4 g6 {This line I liked the most for black. Also to
put the bishop on the diagonal, and to develop healthy.} 7. Bb5+ Nc6 $146 (7…
Bd7 {This was played by Landa and Asrian, but I thought white can get an edge.}
8. Qxd5 Bxb5 (8… Bg7 9. Bxd7+ Qxd7 10. Qxd7+ $14) 9. Qxe5 Nf6 10. Nc3 Bc6 11.
Nf3 Bg7 12. Bb2 O-O 13. Rd1 $14 {Some compensation, but I thought it was not
enough.}) 8. Bb2 Nf6 {The consequence of the novelty is that he has the
oppurtunity to take on f6.} 9. Bxf6 (9. c4 {The main line of my analysis.} Be6
10. Nf3 Bg7 11. Ng5 Qd7 12. O-O O-O 13. Nxe6 Qxe6 14. Re1 (14. Nd2 Rfd8 15. Re1
Qf5 16. Nf3) 14… Qf5 15. Nd2 Rfd8 16. Nf3 dxc4 17. Qc1 Nd5 18. Bxg7 Kxg7 19.
Bxc4 (19. Qxc4 a5) 19… Nf4 20. Qc3+ f6 21. b5 Qg4 22. g3 Rd3 $1 $11) (9. Nf3
Bg7 10. O-O O-O 11. c4 Be6 12. Nbd2 Qc7 13. Qb3 Rad8 14. Rfe1) 9… exf6 {I
think in general this structure is quite fine, only I have to be careful that
my bishops will not be totally hemmed in.} 10. Nc3 Be6 11. Nge2 Bh6 {I
preferred to keep my pawn on f6, thereby controlling the square on e5 and
keeping space for my bishop on e6. The blacksquared bishop I sneakily wanted
to activate via f4.} (11… Bg7 12. O-O O-O 13. Qd2 (13. Qd3 f5 14. Bxc6 bxc6
15. Nd4 Qc7 16. f4 Rfe8 17. Rfe1 a5 {Looks like black has simply too much
counterplay. And let’s face it, the white knight are also not completely happy.
The black pawns are taking all squares of the knights. Also black can try
someday to transfer the bishop from e6 to a6.}) 13… f5 14. Bxc6 bxc6 15. Nd4
Qc7 16. f4 {For such positions I was worried, because my bishop on e6 is
buried. But computer likes it for black..} Bc8 $1 {Here black managed to give
good life to the bishop.} 17. a4 (17. Rfe1 Ba6) 17… a5 $1) 12. Nd4 Rc8 13.
Qf3 O-O 14. Bxc6 bxc6 15. O-O Re8 16. Rad1 Kg7 {To prepare Qc7 and Bf4, to
bring pieces to e5.} 17. Nce2 Qc7 18. h3 (18. Nxe6+ fxe6 19. c4 {I thought
this would be a dream for me, but maybe it can become weak.}) 18… Bd7 {
Planning to bring my rook to e4..} 19. Nc3 (19. c4 {The opening of the centre
was not something where me and my bishops were particularly afraid of.} dxc4
20. Qc3 Kg8 21. Qxc4 f5 {Switching to the other plan again. With the open
centre the bishops are strong.}) 19… Re5 (19… Be6 {I preferred to improve
my pieces over a wait and see strategy. However, moves like b5 I should have
an answer too.}) (19… Bf4 $5 {This was my plan, but somehow I was worried
that my bishop would not be really safe on e5 because of g3 f4.} 20. Qd3 Bh2+
21. Kh1 Be5 22. Nce2 f5 23. f4 Bf6 {And the monster is preserved. I think I
still disliked it because of the bishop on d7, but looks like this is not such
a big problem as I thought.}) (19… Qf4 20. Qd3 Qc7) 20. b5 {This is always a
critical move in this opening. It tries to break blacks centre and sometimes
it can even move onwards to c6, but also the white structure on the queenside
is irreparably damaged. Especially c5 has a hard time to find a defender.} cxb5
$2 {Now things go wrong for me..} (20… Qb7 21. Rfe1 (21. bxc6 Bxc6 22. Nxc6
Rf5 $1 $15 (22… Qxc6 23. Rxd5 Rxd5 24. Nxd5 Qe6 $11))) (20… Qd8 $1 {
Protecting d5.} 21. bxc6 Bxc6 22. Nb3 (22. Qg3 Kg8 23. f4 Re8 24. Nxc6 Rxc6 25.
Rxd5 Qa5) 22… Kg8) (20… Qa5 21. a4 a6 $5 22. Nb3 Qd8 23. b6 Bf5 {Not ideal
to allow such a pawn on b6..}) 21. Nxd5 Qd8 22. c6 Be6 (22… Rxc6 23. Nb4 (23.
Nxc6 Bxc6 24. Ne7 Bxf3 25. Rxd8 Rxe7 26. gxf3 Rc7 27. Rfd1 Rxc2 28. R1d7 $14 {
I thought the main problem of such endings was that I cannot protect f7..})
23… Rc4 24. Ndc6 Bxc6 25. Nxc6 Qc7 26. Nxe5 fxe5 27. Qa8 $14) (22… Bf5 23.
Ne3 $1) (22… Be8 23. Ne3 $1 Qe7 24. Ng4 Re4 {In fact this was my original
idea, but if fails on Nxf6!} 25. Nxf6 $1 $18) 23. Nf4 Qe8 24. Ndxe6+ fxe6 25.
Rd7+ Kh8 26. Nd3 (26. Rfd1 $1 {I thought this would win easily for him. The
main problem is that he even can sacrifice his knight or queen, since c7 and
Rd8 wins extremly many material.} Rf5 27. c7 Bxf4 (27… Rxf4 28. Qb7) 28. Rd8
$18 Bxc7 29. Rxe8+ Rxe8 30. Qb7) 26… Rf5 27. Qe4 Rd5 28. Rxd5 exd5 29. Qxe8+
Rxe8 30. Re1 Rc8 (30… Rxe1+ 31. Nxe1 Bf4 32. Nd3 Bd6 33. Nb4 a5 34. Nxd5 b4
35. a4 $1) 31. Re6 Kg7 (31… Kg8 $1 {The idea is that the king approaches,
together with Bf8 ideas. White has big difficulties to protect c6, and the
resulting endgames are almost never a problem for black.} 32. Rxf6 (32. Nb4 Kf7
33. Rd6 Bf8 34. Rd7+ Ke6 $15) (32. Rd6 Bf8) 32… Bf8 33. Nb4 Be7 $18 34. Re6
Kf7 $11 {One of the main pointes. The rook is chased away, and then the
transition into a rook endgame is fine.}) 32. Rd6 Kf7 (32… Kg8 $1 {
Suprisinly, its still very good. It also avoids checks.}) 33. Rxd5 (33. Rd7+
Ke8 34. Nb4 Bf8 35. Nxd5 Rxc6 36. Rxa7 Rxc2 37. Nxf6+ $14) 33… Rxc6 34. Nb4
Rc7 35. Rxb5 Bf8 36. g3 h5 37. h4 Ke6 (37… Bxb4 38. axb4 Rxc2 39. Rb7+ Ke6
40. Rxa7 Rb2 41. Rb7 Kf5 {Interesting endgame.. we had something similar with
Chuchelov.. but there the pawn was still on f7.. probably it is still holdable,
but complicated. I believe to play f6 g5 and to give the rook somewhere for
the pawn was one of the modern ideas of holding this endgame. I preferred to
simply bring my king.}) 38. Nd5 Rd7 {With few seconds on the clock, I found it
hard to think.} (38… Rxc2 $5 39. Nf4+ Kd7 40. Rb7+ Ke8 (40… Kc6 41. Rxa7
Bc5 42. Nd3 Bxa7 43. Nb4+ Kb5 44. Nxc2 Bc5 45. Kf1 Kc4 46. Ke2 $14) 41. Nxg6
Bc5 42. Nf4 Bxf2+ 43. Kg2 Be3+ 44. Kf3 Bxf4 45. Kxf4 Rc4+ 46. Kf5 Ra4 47. Kxf6
Rxa3 $11) 39. Nf4+ Kf7 40. a4 Rc7 41. Ra5 Bd6 42. Nd5 Rxc2 43. Rxa7+ Ke6 44.
Ne3 Rc1+ 45. Kg2 Bc5 {The rook endgames with only the a-pawn and the rook
behind it are a draw quite easily.} 46. Ra6+ Ke5 47. Ra8 $1 Bxe3 48. Re8+ Kd5
49. Rxe3 Ra1 50. Rf3 f5 51. Rf4 (51. Rb3 Rxa4 52. Rb6 {Comparable to the game.}
) 51… Kc5 52. Kf3 Re1 53. Kg2 Ra1 54. Kh2 Rb1 {I saw that when I allow the
king to the queenside I have to depart anyway some day with the rook from the
a-file, so I decided this would be a more appropiate moment.} (54… Ra2 55.
Kg1 Ra3 56. Kf1 Ra1+ 57. Ke2 Ra3 58. Kd2 Ra1 59. Kc2 Ra3 60. Kb2 Rd3 61. Kc1
Rb3 62. Kd2 Ra3 63. Kc2 Ra1 64. Kb2 Rf1 65. a5 Kb5 66. Kc3 Rc1+ 67. Kd4 {To
allow the king like this is slighty risky, but probably still a draw.} Kxa5 68.
Ke5 Kb5 69. Kf6 Rc6+ 70. Kg5 Kc5 71. Rf3 Kd4 72. Re3 Rc2 73. Kxg6 Rxf2 74. Rb3
f4 75. gxf4 Rxf4 76. Kxh5 Ke5 $11) 55. Rf3 Ra1 56. Rc3+ Kd5 57. Rb3 Rxa4 58.
Rb6 Rg4 $6 {This is a very risky move and unnecessary. Better to sacrifice a
pawn for activity then put a rook like this. Main risk is of course that white
plays f2-f4. My idea was to provoke f3 and only then to play f4.} (58… Ke4 $1
59. Rxg6 (59. Kg2 f4 60. Rxg6 fxg3 61. Kxg3 $11 (61. fxg3 Ra2+ 62. Kh3 Ra5 {
And know he cannot win the h-pawn. After Rg5 the pawn endgame is just draw.}
63. Rg5 Rxg5 64. hxg5 Kf5 65. Kh4 Kg6)) 59… Kf3 60. Rg5 (60. Rf6 Ra5 61. Rh6
Ra2) 60… f4 61. Rxh5 Ra2 (61… Kxf2 62. g4 (62. gxf4 Kf3 63. f5 Kg4) 62…
f3 63. Rg5 Ra2 64. h5 Kf1+ 65. Kg3 f2 66. Rf5 Kg1 67. h6 f1=Q 68. Rxf1+ Kxf1
69. g5 Rg2+ 70. Kf4 Rh2 $11) 62. Rf5 Rxf2+ 63. Kh3 Ke4 64. g4 Rf3+ 65. Kh2 Rg3
66. Rg5 Kf3 67. h5 Rg2+ 68. Kh3 Rg1 $11) 59. f3 (59. f4 $5 {Now the rook is
completely cut off. Also with rook and the king he can bring me into zugzwang.
I have to play ..g5 at the right moment, it seems..} Kd4 (59… g5 $6 {Trying
to break immediately.} 60. hxg5 h4 61. gxh4 Rxf4 62. Kg3 Rg4+ 63. Kh3 Ke5 (
63… Rg1 64. Rb5+ Ke6 65. Rb4 Ke5 (65… Rd1 66. Kg2 Rd2+ 67. Kf3 Rd3+ 68. Kf4
Rh3 69. Rb6+ Kf7 70. Rh6) 66. Kh2 Ra1 67. h5 Ra2+ 68. Kg3 Ra3+ 69. Kh4 Ra1 70.
Rb2) 64. Rb5+ Ke6 65. Rc5 Rg1 66. Rc4 Ke5 (66… Rb1 67. Kg2 Rb3 68. h5) 67.
Kh2 Ra1 (67… Rd1 68. h5 Rd2+ 69. Kg3 Rd3+ 70. Kh4 Rd1 71. Rc2) (67… Re1 68.
h5 Re2+ 69. Kg3 Re3+ 70. Kh4 Re1 71. Rc2 Kf4 72. Rf2+ Ke5 73. Rh2 f4 74. h6 Kf5
75. h7 Re8 76. Kh5) 68. h5 Ra2+ 69. Kg3 Ra3+ 70. Kh4 (70. Kf2 Ra2+ (70… Rh3
71. h6 Rh2+ 72. Kg3 Rh5 73. Rc8 Rxg5+ 74. Kh4 Rg1 $11)) 70… Ra1 71. Rc2 $3 {
The idea is to give some vertical checks! White sacrifices a pawn, but when
the black king is cut off he has a problem!} (71. Rc3 Ra4+ 72. Kh3 Rg4 73. Rg3
Kf4 $1 74. Rxg4+ fxg4+ 75. Kg2 Kxg5 $11) 71… Rh1+ (71… Ra4+ 72. Kh3 Rg4 73.
Rg2) 72. Kg3 f4+ (72… Rxh5 73. Re2+ Kd6 74. Kf4 $18) 73. Kf3 Rxh5 74. Kg4 Rh7
75. Re2+ Kd6 76. g6 Re7 77. Rf2 $18) (59… Kc4 {Crossing the 3rd rank doesn’t
help. Especially not for a ..g5 break.} 60. Kg2 Kc3 61. Kf2 Kc2 62. Ra6 Kc3 63.
Ra3+ Kd2 64. Re3 Kd1 65. Rd3+ Kc1 66. Ke1 Kb2 67. Kd2 Ka2 68. Kc2) 60. Rb3 Ke4
61. Kg2 Kd4 (61… g5 62. fxg5 f4) 62. Kf2 Kc4 63. Ra3 Kd4 64. Ke2 Kc4 (64…
g5 65. hxg5 h4 66. Ra4+ Kd5 67. Ra5+ Ke6 68. gxh4 Rxf4 69. h5) 65. Kd2 Kc5 66.
Rd3 Kb4 67. Rc3 Kb5 68. Kc1 $5 (68. Kc2 Kb4 69. Kb2 g5 $1 {This seems a good
moment to make the g5 sacrifice. The black king is more active than whites.} (
69… Ka4 70. Rb3 g5 (70… Ka5 71. Kb1 Ka4 72. Ka2 Ka5 73. Ka3 Ka6 74. Ka4 g5
(74… Ka7 75. Ka5 Ka8 76. Ka6 $18) 75. hxg5 h4 76. gxh4 Rxf4+ 77. Rb4) 71.
hxg5 h4 72. gxh4 Rxh4 73. Rb8 Rxf4 74. g6 Rg4 75. Rg8) (69… Kb5 $5 {To get
in the 68.Kc1 variation. The advantage is that the black king now cannot get
cut off horizontally so easily.}) 70. hxg5 (70. fxg5 f4 71. gxf4 Rxf4 72. Rg3
Rf8 73. g6 Rg8 74. Rg5 (74. g7 Kc5 $1 {Before getting cut off on the 5th rank!}
) 74… Kc4 $2 (74… Rg7 $1 {Blocking the g-pawn. The more flexible option
for black.} 75. Kc2 Kc4 $1 76. Kd2 Kd4 $1 77. Ke2 (77. Ke1 Ke3 $1) 77… Ke4
78. Kf2 Kf4 79. Kg2 Ke4 80. Kg3 Ke3 81. Re5+ Kd4 82. Rxh5 Rxg6+ 83. Kf4) 75. g7
Kb4 (75… Kd4 76. Kb3) 76. Kc2 Kc4 77. Kd2 Kd4 78. Ke2 Ke4 79. Kf2 Kf4 80. Kg1
(80. Kg2 Ke3 $3 (80… Ke4 81. Kg3 Ke3 82. Re5+ $1 Kd4 83. Re7 Kd5 84. Kf4 Kd6
85. Ra7 Ke6 86. Kg5 $18) 81. Kg3 Ke4) 80… Ke4 $3 81. Kg2 Ke3 $3 82. Rxh5 (82.
Kg3 Ke4 83. Kf2 Kf4) 82… Rxg7+ 83. Rg5 Rf7 84. Rg4 Rf2+ 85. Kh3 Rf5 86. Rg5
Kf4) 70… h4 71. gxh4 Rxh4 72. Rc8 (72. Rg3 Rh7) 72… Rxf4 $1 (72… Rg4 73.
Kc2 Kb5 74. Rg8 Kc4) (72… Rh7 73. Kc2) (72… Rh2+ 73. Kc1 Rg2 (73… Rf2 74.
Kd1 Rxf4 75. g6) 74. Kd1 Kb5 75. Rf8) 73. g6 Rg4 74. Rg8 Rg2+ $1 75. Kc1 Kc3 $1
76. Kd1 Kd3 77. Ke1 Ke3 78. Kf1 Kf3 $11) 68… Kb4 (68… Ka5 69. Rb3) (68…
Ka4 69. Kb2 Kb5 70. Kb3) 69. Kc2 Kb5 70. Kb3 g5 $1 (70… Kb6 71. Kc4 Kc6 72.
Rd3 g5 73. hxg5 h4 74. gxh4 Rxh4 75. Kd4) 71. hxg5 (71. fxg5 f4 72. gxf4 Rxf4
73. Rg3 Kc6 74. g6 Rf8 75. Rg5 $11 {In this variation the black king is not
cut off.}) 71… h4 72. gxh4 Rxh4 73. Rg3 (73. Rc8 Rxf4 74. g6 Rg4 75. Rg8 Rg3+
76. Kc2 Kb6 77. g7 Kb7) (73. Rf3 Rg4 74. Kc3 Kc5 75. Kd3 Kd5 76. Ke3 Rg1 77.
Rh3 Ra1) 73… Kc6 $1 (73… Rh7 74. Re3 Kc6 75. Re5 Rf7 76. Kc4 Kd6 77. Kd4
Rf8 78. Ra5 Ke6 79. Ra6+ Ke7 80. Ke5 $18) (73… Kc5 $2 74. g6 Rh8 75. Rg5 Rg8
76. Rxf5+) 74. g6 Rh8 75. Kc4 Kd6 76. Ra3 Rc8+ 77. Kd4 Ke7 78. Ra6 Rb8 $11)
59… Ra4 60. Rxg6 f4 $2 (60… Ke5 61. Rg5 Ra2+ 62. Kh3 Ra3 63. f4+ (63. Rxh5
Rxf3 64. Kg2 Ra3 {This endgame is ofcourse not worrying at all.} 65. g4 Kf4 66.
g5 Kg4 67. Rh8 Ra6 68. Rh6) 63… Ke4 64. Rxh5 Kf3 $1 $11) 61. gxf4 (61. Rg5+
$1 Ke6 (61… Kd4 62. gxf4 (62. Rf5 Ke3 (62… fxg3+ 63. Kxg3 Kd3 64. Rxh5 $18)
63. Rxf4 Rxf4 64. gxf4 Kxf4 65. Kg2) 62… Ke3 63. Kg3 Ra1 64. Re5+ $18) 62. g4
Ra2+ (62… hxg4 63. fxg4 Ra2+ 64. Kh3 Ra3+ 65. Kg2 Ra2+ 66. Kf3) 63. Kh3 (63.
Kg1 hxg4 64. fxg4 f3 65. Kf1 Rg2 66. h5 Kf6 67. Rg6+ Ke5 68. h6) 63… Rf2 64.
Rxh5 Rxf3+ 65. Kh2 Rf2+ (65… Rg3 66. Rg5) 66. Kg1 Rb2 67. Rf5) (61. g4 hxg4
62. Rg5+ (62. fxg4 Ke4) 62… Kd4 $1) 61… Rxf4 62. Kg3 Ra4 63. Rh6 Ke5 64.
Rxh5+ Kf6 65. Rb5 Rc4 66. Ra5 Rb4 67. Ra6+ Kf7 68. h5 Rb1 69. Kg4 (69. Ra7+ Kf6
70. h6 Kg5 71. h7 Rh1 72. Rc7 (72. f4+ Kf5) 72… Kf5 73. Rg7 Rh6 74. Rf7+ Kg5
75. Kf2 Kg6 76. Ra7 Kf5 $11) 69… Kg7 70. f4 (70. Rg6+ Kf7) 70… Rg1+ 71. Kf5
Rf1 72. Rd6 Rh1 73. h6+ Kh7 74. Ke5 Re1+ 75. Kf6 Ra1 76. Kf5 Rf1 77. Kg5 Rg1+
78. Kf6 Ra1 79. f5 Kxh6 80. Ke7+ Kh7 $8 (80… Kg5 81. f6 Ra7+ 82. Kf8 $1 Ra8+
83. Kg7 $1 Ra7+ 84. f7) (80… Kg7 81. f6+ Kh7 82. f7) 81. f6 Ra7+ 82. Rd7 Ra8
83. Rb7 Kg6 84. Rd7 Rb8 85. Rd6 Rb7+ 86. Ke6 Ra7 87. Rd8 Ra6+ 88. Rd6 Rxd6+ 89.
Kxd6 Kxf6 {After the first 3 rounds I realized that luck was with me this
tournament, and that I should use this to score my first GM-norm! I came under
big pressure this game, but I kept fighting. Still some inaccuracies, but
finally it was enough to hold a very difficult position.} 1/2-1/2
%%%pgn%%%

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