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Edgard Colle vs Vasja Pirc
Frankfurt (1930), Frankfurt GER, rd 11, Sep-??
Indian Game: Knights Variation. General (A46)  ·  0-1

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
0-1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

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Kibitzer's Corner
Oct-19-23  Straclonoor:


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This pawn ending was analysed by Nikolay Grigoriev

It won for black

Analysis by Stockfish dev-20230922-154b8d3e:

1. -+ (-#28): 47...Kc6 48.Kf2 h5 49.Kf1 h4 50.Kf2 Kb5 51.Kg1 g4 52.hxg4 e3 53.g5 f3 54.gxf3 h3 55.f4 h2+ 56.Kxh2 e2 57.Kh3 e1Q 58.c6 Kxc6 59.b5+ Kxb5 60.Kg4 Qe4 61.Kg3 Qe6 62.Kh4 Kc5 63.Kg3 Qxb3+ 64.Kg4 Qd3 65.Kh4 Qf3 66.f5 Qxf5 67.Kg3 a5 68.Kg2 a4 69.g6 Qxg6+ 70.Kf3 a3 71.Ke2 a2 72.Ke3 a1Q 73.Kd2 Qg2+ 74.Kd3 Qa3#

2. -+ (-#29): 47...h5 48.Kf2 Kc6 49.Kf1 h4 50.Kf2 Kb5 51.Kg1 g4 52.hxg4 e3 53.g5 f3 54.gxf3 h3 55.f4 h2+ 56.Kxh2 e2 57.Kh3 e1Q 58.c6 Kxc6 59.b5+ Kxb5 60.Kg4 Qe6+ 61.Kh5 Qf5 62.Kh6 Qxf4 63.Kg6 Qg3 64.Kf5 Qxb3 65.g6 Qg8 66.Kg5 Kc5 67.g7 Qxg7+ 68.Kf4 Qg2 69.Ke3 a5 70.Kf4 a4 71.Ke3 a3 72.Kd3 a2 73.Ke3 a1Q 74.Kf4 Qf6+ 75.Ke3 Qd4#

In position after 49 moves


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Grigoriev said that 50.g3 more resist then <50.Ke2> SF agree with him: 50.g3 - first line, 50.Ke1 - second

Analysis by Stockfish dev-20230922-154b8d3e:

1. -+ (-200.00): 50.g3 fxg3+ 51.Kg2 e3 52.Kxg3 Kc6 53.Kg2 a6 54.Kg3 Kb7 55.Kg2 Kc7 56.Kg3 Kc6 57.Kg2 Kd5 58.Kg3 Ke4 59.c6 e2 60.Kf2 Kd3 61.c7 Kd2 62.c8Q e1Q+ 63.Kg2 Qe2+ 64.Kg3 Qf3+ 65.Kh4 g3 66.Qd8+ Kc2 67.Qc7+ Kxb3 68.Qd6 g2 69.Qe6+ Kb2 70.Qe5+ Qc3 71.Qe2+ Kb3 72.Qxg2 Qh8+ 73.Kg4 Qg8+ 74.Kf3 Qa8+ 75.Kg3 Qxg2+ 76.Kxg2 Kxb4 77.Kf2 a5 78.Ke1 Kb3

2. -+ (-#22): 50.Ke1 g3 51.Ke2 a6 52.Ke1 f3 53.gxf3 e3 54.Kf1 Ke5 55.c6 Kd6 56.f4 Kxc6 57.f5 Kd6 58.f6 Ke6 59.f7 Kxf7 60.Ke2 g2 61.Kxe3 g1Q+ 62.Kd3 Kf6 63.b5 axb5 64.Kc3 Ke5 65.Kb4 Kd5 66.Kc3 Qd4+ 67.Kc2 Ke4 68.Kb1 Qd2 69.Ka1 Kd3 70.Kb1 Kc3 71.Ka1 Qb2#

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