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Frode Olav Olsen Urkedal vs Erik Fossan
Norwegian Championship (2017), Stavanger NOR, rd 1, Jun-30
Blumenfeld Countergambit: Dus-Chotimursky Variation (E10)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
May-15-21
Premium Chessgames Member
  g15713: <"Even with all pawns are one wing, an extra pawn offers winning chances."> Karsten Müller

F. 1.0
White to move at 43


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Stockfish gives the following analysis after 25-minute evaluation

1) +1.15 (53 ply) 43.h4 Qf1 44.f3 Kh7 45.h5 Qc1 46.Qe4+ Kg8 47.Qe6+ Kh8 48.Qe5 Qf1 49.Qe8+ Kh7 50.Qe3 Qb5 51.g4 Kh8 52.Kg3 Qb8+ 53.Kg2 Qd6 54.Qf2 Qd3 55.Qb2 Kh7 56.Qe5 Qd1 57.Qf5+ Kg8 58.Qe6+ Kh7 59.Kg3 Qg1+ 60.Kf4 Qc1+ 61.Qe3 Qc7+ 62.Ke4 Qc6+ 63.Kd3 Qb5+ 64.Kd2 Qb2+ 65.Ke1 Kg8 66.Qe8+ Kh7 67.Qe4+ Kh8 68.Qe2 Qb1+ 69.Kf2 Qb6+ 70.Kg2 Qc5 71.Qe8+ Kh7 72.Qe4+ Kg8 73.Qd3 Qc1 74.Qd5+ Kh7 75.Kg3 Qc7+ 76.Kh3 Qc3 77.Qe4+ Kh8 78.Qe8+ Kh7

Looks drawish

Game continued:

43. h4 Qb2 44. Kg2 Qe2 45. Qf5 Qa6 46. g4 Qc6+ 47. Qf3 Qe8 48. Qd5 Qc8 49. Qe4 Qd8 50. Kh3 Qb6 51. Qf5 Qa6 52. g5 Qf1+ 53. Kh2

F. 1.1
Black to move at 53


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Stockfish gives the following analysis after 25-minute evaluation

1) +0.25 (54 ply) 53...Qc4 54.Kg3 Qc3+ 55.Kg4 Qc4+ 56.Qf4 Qc8+ 57.Kf3 Qh3+ 58.Ke4 hxg5 59.hxg5 Qe6+ 60.Qe5 Qc6+ 61.Qd5 Qc1 62.f3 Qb1+ 63.Kf4 Qb8+ 64.Kg4 g6 65.f4 Qc8+ 66.Kf3 Qc2 67.Ke3 Kg7 68.Qd7+ Kf8 69.Qd8+ Kf7 70.Qf6+ Kg8 71.Qd4 Qb3+ 72.Ke4 Qe6+ 73.Kd3 Qb3+ 74.Ke2 Qc2+ 75.Kf3 Qb3+ 76.Kg2 Qe6 77.Kf2 Kf7 78.Qd3 Kg8 79.Qe3 Qc6 80.Qb3+ Kg7 81.Ke3 Qc1+ 82.Ke4 Qc6+ 83.Kd4 Qc7 84.Qe3 Qd7+ 85.Kc3 Qc6+ 86.Kd2

In line 1 above, position after 59. hxg5

F. 1.2


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Syzygy says it is a tablebase draw
'https://syzygy-tables.info/?fen=7k/...

For example, 59...g6 60. Qf8+ Kh7 61. Qf7+ Kh8 62. Qxg6 Qd3+ 63. Kxd3 Stalemate!

F. 1.3


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Actual game continued:

Black played 53...hxg5? <Qc4!> and White replied with 54. hxg5
Now 55. g6 is a serious threat

F. 1.4
Black to move at 54


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Syzygy says Black is losing
'https://syzygy-tables.info/?fen=7k/...

Game continued:

54...Qc4 55. g6 Kg8 56. Kg1 Qc1+ 57. Kg2 Qc4 58. Kg3 Qc3+ 59. Kh2 Qc4
60. Kh3 Qf1+ 61. Kg3 Qg1+ 62. Kf3 Qd1+ 63. Kg2 Qd8 64. Qe6+ Kh8
65. Qh3+ Kg8 66. Qh7+ Kf8 67. Qh8+ Ke7 68. Qxg7+ Ke6 69. Qf7+ Ke5
70. g7 Qa8+ 71. Kh2 1-0

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