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(1) Khmelnetsky,I - Casteneda,N [B31]
US Open, 2002
1.e4
c5
2.Nf3
Nc6
3.Bb5
g6
4.Bxc6
dxc6
5.h3
Bg7
6.0-0
[ 6.d3
] 6...Nf6
7.d3
This is a very modern and very positional line for White. GM Garcia has had some trouble with it, losing quickly to GM Rowson at the World Open. Black has trouble effectively developing his bishops. 7...0-0
8.Nc3
Qc7
9.Be3
b6
10.Qd2
e5
11.Bh6
Eliminating the bishop pair. 11...Nh5
12.Ne2
f5!?
Actively played. Black risks his pawn structure to enhance his piece play. This seems better than the slow strangulation that often occurs in this line. 13.exf5
Bxf5
White cannot win a piece with g4 because of the loose Nf3. 14.Bxg7
Qxg7
15.Ng5
[ 15.Qe3
Rae8
16.Nc3
Nf6=
] 15...Qh6
16.Ne4
Nf4
The first of many times that Black will decline to trade queens. Here it is motivated by White&aposs superior pawn structure and Black&aposs strong pieces. 17.Nxf4
exf4
18.Rfe1
Rad8
19.f3
Qg7
20.Qc3
Rd4!?
Having solved the problem of his bishop and his pawn structure, black now presses for an advantage. 21.a4
Bxe4
22.Rxe4
Rxe4
23.Qxg7+
Kxg7
24.fxe4
Kf6
The strong king will more than compensate for White&aposs protected passed e-pawn. 25.Kf2
[ 25.a5
b5
] 25...Ke5
26.Kf3
Rd8
27.Rd1
Rd4
28.b3
a5
29.h4
Rd7
30.Kg4
h6
31.Kf3
b5
[ 31...Rg7
32.c3
] 32.Ra1
Ra7
33.c3?!
[ 33.Ra2=
] 33...Rd7
34.Ke2
Ra7
[ 34...c4?!
35.axb5
cxd3+
36.Kd2
cxb5
37.Rxa5
Kxe4
38.Rxb5
] 35.Kf3
Rd7
36.Rd1?!
[ 36.Ke2
] 36...g5!?
37.hxg5
hxg5
38.g3
[ 38.Kg4
c4
] 38...g4+!
39.Ke2
[ 39.Kxg4
Rg7+
] 39...bxa4?
[ 39...fxg3-/+
for example... 40.Rf1
g2
41.Rg1
bxa4
42.bxa4
Rb7
43.Ke3
Rb2
] 40.gxf4+
Kxf4
41.Rf1+
Kg3
42.bxa4
Kh2
43.Rf5
[ 43.Rf2+!
Kh3
44.Rf5
Rh7
45.Rxc5
g3
46.Kf1
Kh2
47.Rg5
Rf7+
48.Ke2
g2
49.Rh5+=
Kg1
50.e5
( 50.Rxa5
Rh7
51.Rg5
Kh2
52.Kf2
g1Q+
53.Rxg1
Rf7+
54.Ke3
Kxg1
55.d4
Kg2
56.d5
cxd5
57.exd5
Kg3
58.c4
Kg4
) 50...c5
51.d4
cxd4
52.cxd4
Rf2+
53.Ke3
Kf1
54.Rg5
g1Q
55.Rxg1+
Kxg1
56.d5
Rf1
57.e6
Re1+
58.Kd4
Kf2
59.Kc5
Kf3
60.d6
Re5+
61.Kc6
Rxe6
62.Kc7
Rxd6
63.Kxd6
Ke4=
] 43...Rh7
44.Rxc5
[ 44.Rg5
g3
45.Kf3
Rf7+
46.Ke2
g2
47.Rh5+
Kg1
48.e5
c4
49.dxc4
Rf4
; 44.Rf2+
Kh3
45.Rf6
g3
46.Rg6
g2
47.Kf2
Rf7+
48.Ke2
Kh2
49.Rh6+
Kg1
50.Rh8
Rf2+
51.Ke1
Ra2
52.Rh7
Rxa4
] 44...g3
45.Rxc6
g2
46.Rg6
g1Q
47.Rxg1
Kxg1-/+
The rook vs. 3 connected passed pawns is the final battleground. 48.e5
Kg2
49.Ke3
Rh3+
50.Ke2
[ 50.Ke4
Kf2
] 50...Kg3
51.Ke3
Rh1
52.d4
Kg4
53.Ke4
Ra1!
The first of three maximum length moves by the rook. It is hard to believe that Black has time to grab the a-pawn, but a passed pawn is very handy. Without the a-pawns on the board, the endgame would have been a draw. 54.c4
[ 54.e6?
Re1+
55.Kd5
Kf5
] 54...Rxa4
55.c5
[ 55.Kd5
Kf5
56.c5
Ra1
57.c6
a4
58.e6
Rh1
59.e7
Rh8
60.Kc4
Ke6
] 55...Ra1
56.c6
a4
57.Kd5
a3
58.e6
Rh1!
Black can impede both white pawns from the first rank. 59.e7
Rh8
60.Ke6
a2
61.d5
a1Q
62.d6
Qa8
63.c7
[ 63.Kd7
Qc8#
] 63...Qc6
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