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Alan Tate vs Jonathan Pein
Tradewise Gibraltar (2018), Catalan Bay GIB, rd 8, Jan-30
King's Indian Defense: Fianchetto Variation. Kavalek Defense (E62)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Aug-13-19
Premium Chessgames Member
  g15713: Part 1

E. 1
Black to move. Last: 43.Rb5 White begins to tighten his grip
<"you put someone back on his heels">


click for larger view

Black in return played meekly 43...Ra6?
A serious positional mistake. The Black rook will now be passively placed, and this will decide the outcome of the game.

Game continuation:

44. Kg2 Kg7 45. Kf3 Rf6+ 46. Kg2 Ra6 47. g4 Kg6 48. Kg3 Kg7 49. Rf5 Kg6 50. Rc5 Kg7 51. h4 gxh4+ 52. Kxh4 Rf6 53. Kg3 Ra6 54. Rb5 Kg6 55. Rc5 Kg7 56. Rd5 Kg6 57. Re5 Kg7 58. Rh5 Kg6 59. Rd5 Kg7 60. Rf5 Kg6 61. Kg2 Kg7 62. f3 Kg6 63. Kg3 Kg7 64. Kg2 Kg6 65. Kf2 Ra8 66. Kg3 Ra6 67. Kf2 Ra8 68. Kf1 Ra7

E. 1.1
White to move. Last: 68...Ra7


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White has a strong outpost on f5 for his rook which ties up Black completely but to make progress White has to bring his king to the queenside.

69. Ke2 Re7+ 70. Kd3 Rd7+ 71. Ke4 Re7+ 72. Kd4 Rd7+ and now
73. Kc4! leads to diagram E. 1.3 and not 73. Kc5? which allows Black to draw with either 73...Rb7 or Rd3

E. 1.2
Black to move. Last: 73.Kc5


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Stockfish analysis:

1) =0.00 (31 ply) 73...Rb7 74.Kc6 Rb4 75.Rxa5 Rf4 76.Kb6 Rb4+ 77.Kc5 Rf4 78.Ra6+ Kg5 79.a5 Rxf3 80.Rd6 Kxg4 81.Rd4+ Kg3 82.Ra4 Rf5+ 83.Kb4 Rf4+ 84.Kb3 Rf3+ 85.Kb2 Rf2+ 86.Kc3 Rf3+ 87.Kd2 Rb3 88.a6 Rb8 89.Ra3+ Kf4 90.a7 Ra8 91.Ra1 h5 92.Ke1 f5 93.Kf2 Ke4 94.Ra4+ Kd5 95.Kf3 h4 96.Rxh4 Rxa7

2) =0.00 (47 ply) 73...Rb7 74.Kc6 Rb4 75.Rxa5 Rf4 76.Ra8 f5 77.gxf5+ Rxf5 78.Rg8+ Kh7 79.Rg4 h5 80.Rg1 Rxf3 81.a5 Rf6+ 82.Kb7 Rf7+ 83.Kc8 Rf8+ 84.Kd7 Kh6 85.Ra1 Rf6 86.a6 Rxa6

3) =0.00 (47 ply) 73...Rd3 74.Kb5 h5 75.Rxh5 Rxf3 76.Kxa5
(leads to diagram E. 1.4 with Black to move)
76...Rg3 77.Kb5 Rxg4 78.Rh8 Rg5+ 79.Kb6 Re5 80.a5 Re6+ 81.Kb7 Re7+ 82.Kb8 Re6 83.Rg8+ Kf5 84.Kb7 Re7+ 85.Kc6 Re6+ 86.Kc5 Re5+ 87.Kb4 Re4+ 88.Kb3 Re3+ 89.Kc2 Re2+ 90.Kd3 Ra2 91.Ra8 Kg4 92.a6 Ra3+ 93.Kc4 f5 94.a7 Kf4 95.Kb5 Ra1 96.Kb4 Kf3 97.Kb5 Kf4

Game continuation went:

73. Kc5? Re7? 74. Kb5 Re3 75. Kxa5 h5 76. Rxh5 Rxf3
(leads to diagram E. 1.4 with White to move)
77. Rf5 Rg3 78. Rf4 f6 79. Kb5 Kg5 80. Re4 f5 81. gxf5 Rf3 82. Rc4 Kxf5 83. a5 Ke6 84. a6 Ra3 85. Ra4 Rb3+ 86. Kc4 Rb8 87. a7 Ra8 88. Kb5 Kd7 89. Kb6 Kc8 90. Rd4 1-0

E. 1.3
Black to move. Last: 73.Kc4 White gains a vital tempo to win


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Stockfish 25-minute analysis:

1) +4.85 (38 ply) 73...Rc7+ 74.Kb5 Ra7 75.Kb6 Ra8 76.Rd5 Rb8+ 77.Kxa5 Kf6 78.Rb5 Re8 79.Rf5+ Ke6 80.Kb6 Kd7 81.Rxf7+ Ke6 82.Rh7 Kd5 83.a5 Re6+ 84.Kb5 Re1 85.a6 Rb1+ 86.Ka5 Kc6 87.Rf7 Ra1+ 88.Kb4 Rb1+ 89.Kc3 Rb8 90.Kc4 Rc8 91.Rf6+ Kc7 92.Rxh6 Kb8+ 93.Kb5 Ka7 94.Rh7+ Kb8 95.g5 Rf8 96.Kb6 Ka8

2) +4.97 (38 ply) 73...Ra7 74.Kb5 Ra8 75.Kb6 Kg7 76.Rd5 Kf8 77.Rxa5 Rb8+ 78.Kc5 Ke7 79.Rb5 Rc8+ 80.Kb4 Kd6 81.a5 Rd8 82.Rf5 Rb8+ 83.Ka4 Rf8 84.a6 Kc7 85.Rb5 f5 86.Rxf5 Rh8 87.Rf6 Kb8 88.Kb5 Ka7 89.Rf7+ Ka8 90.Kc5 Rd8 91.Rh7 Rc8+ 92.Kb6 Rb8+ 93.Ka5 Rc8 94.Rxh6 Rg8 95.Kb6 Rb8+ 96.Kc5 Rc8+ 97.Kd5 Rf8 98.Ke4 Rg8 99.Kd4 Ka7 100.Kc5 Rg5+ 101.Kb4 Rd5 102.Kc4 Rg5 103.Rf6 Rg7 104.Rh6 Rc7+ 105.Kd5 Rg7

3) +5.22 (37 ply) 73...Rd1 74.Kb5 f6 75.Kxa5 Rb1 76.Ka6 Kf7 77.a5 Ke6 78.Rb5 Rd1 79.Ka7 Rd7+ 80.Rb7 Rd3 81.Rb6+ Kd7 82.Kb7 Rc3 83.Rxf6 Rc7+ 84.Kb6 Rc3 85.a6 Rb3+ 86.Kc5 Rc3+ 87.Kb5 Rb3+ 88.Ka4 Rc3 89.Rxh6 Rc8 90.Kb5 Rc3 91.a7 Rc8 92.Rf6 Ra8 93.Ra6

E. 1.4
A critical position if White moves first he wins otherwise Black can draw


click for larger view

According to FinalGen:

White to play wins by moving his rook along 5th rank by:
Rb5 or Rc5 or Rd5 or Re5 or Rf5

Black to play draws by Rg3 or Rf4

To be continued

Aug-17-19
Premium Chessgames Member
  g15713: Part 2

Going back to E. 1
Black to move. Last: 43.Rb5 White begins to tighten his grip


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Instead of game continuation 43...Ra6? Black's correct play is to
immediately activate his rook with 43...Rd1+!

44.Kg2 Ra1 45.Rxa5 Kg7 46.Ra8 Kf6
Black activates his king.

E. 1.5
White to move. Last: 46...Kf6


click for larger view

Black's rook is very active, both watching the a-pawn and menacing White's kingside.

Look at a similar game between Tal vs. Gipslis and one between Akopian vs. Georgiev

'Tal vs Gipslis, 1983

'Akopian vs Kiril D Georgiev, 1999

Stockfish 25-minute analysis:

1) +1.41 (44 ply) 47.a5 h5 48.a6 h4 49.a7 Ra3 50.g4 Kg7 51.Kf1 Ra2 52.f3 Kh7 53.Ke1 Kg7 54.Kd1 Kf6 55.Kc1 Ra6 56.Kb2 Rb6+ 57.Kc3 Rb7 58.Kd4 Rd7+ 59.Kc5 Re7 60.Kb6 Re6+ 61.Kc7 Re7+ 62.Kc6 Ke5 63.Kb6 Re6+ 64.Kb7 Re7+ 65.Ka6 Re6+ 66.Ka5 Re7 67.Kb5 Kf6 68.Ka6 Re6+ 69.Ka5 Re7 70.Kb5 Ke5 71.Kc6 Kf6 72.Kd6 Re6+ 73.Kd5 Re5+ 74.Kd4 Re7 75.Kc4
leads to diagram E. 1.6

3) +1.16 (44 ply) 47.Kf3 h5 48.a5 h4 49.a6 Ra3+ 50.Kg2 Ra2 51.Kf1 Ra1+ 52.Ke2 Ra2+ 53.Kd1 Ra1+ (53...Rxf2=) 54.Kd2 Ra2+ 55.Kc3 g4 56.hxg4 h3 57.Kb3 h2 58.Rh8 Rxa6 59.Rxh2 Kg5 60.f3 Ra1 61.Kb4 Kg6 62.f4 Rg1 63.Rh3 Rb1+ 64.Kc5 f6 65.Kd5 Ra1 66.Ke4 Ra2 67.Kd4 Ra3 68.Kc5 Kg7 69.Kc6 Kg6 70.Kb5 Kf7 71.Kc4 Kg7 72.Kb4 Rf3 73.Kb5 Rb3+ 74.Kc6 Ra3

E. 1.6
Black to move. Last: 75.Kc4


click for larger view

Once White advances his pawn to a7 then his king will not be able to find shelter on the queenside.

Stockfish 1-minute analysis:

1) =0.00 (44 ply) 75...Re7 76.Kd4 Rd7+ 77.Ke4 Re7+ 78.Kd5 Re5+ 79.Kd4 Re7 80.Kc4 Ke5 81.Kb5 Kf4 82.Kb6 Re6+ 83.Kc5 Re7 84.Kc6 Kxf3 85.Kb6 Re6+ 86.Kc7 Re7+ 87.Kd6 Rb7 88.Kc6 Re7

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#07 43...Ra6? passive play loses while 43...Rd1+! draws
from g15713's favorite Rook endgames Part II by g15713


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