A59: Benko/Volga Gambit: White castles by hand
1.d4
Nf6
2.c4
[2.Nf3
e6=
]
2...c5
3.d5
White wins space
3...b5
[3...g6
4.Nd2=
]
4.cxb5+/=
a6
5.bxa6
g6
6.Nc3
Bxa6
7.Nf3
Bg7
8.e4
Bxf1
9.Kxf1
d6
Covers e5
10.g3
0-0
11.Kg2
White king safety dropped
11...Nbd7
12.Qe2
Nb6
White has an active position [12...Rb8
13.h3+/=
]
13.a4
White has a new backward pawn: b2. Black has a cramped position
13...Qc8
14.a5
Qa6
15.Qxa6
[15.axb6
is much weaker 15...Qxe2
(15...Qxa1?!
16.e5
dxe5
17.Nxe5=/+
) 16.Rxa8
Qc2-/+
]
15...Rxa6
16.Ra2
[16.axb6?
is a blank shot 16...Rxa1
17.Bg5
Rxh1
18.Kxh1
Rb8-+
]
16...Nc4?
[>=16...Nbd7!?
17.Bg5
h6+/-
]
17.Ra4+-
Ne5
18.Nxe5
dxe5
19.Be3
Nd7
20.Rb1
Rc8?
[>=20...f5+-
]
21.b4
cxb4
22.Na2
Rca8
[22...Raa8
23.a6
f5
24.exf5
gxf5
25.Nxb4+-
]
23.Nxb4
Rxa5
24.Rxa5
Rxa5
25.Nc6
Ra8
26.Rb7
Nf6
27.Nxe7+
Kf8
28.f3
[>=28.Nc6!?
makes it even easier for White 28...Nxe4
29.d6
Nxd6+-
]
28...Ke8
29.Nc6
Nd7
30.f4
f6
31.Ra7
Rxa7
32.Bxa7
[Less advisable is 32.Nxa7
f5
33.exf5
gxf5+/-
]
32...Bf8
33.fxe5
fxe5
34.Bb8
[34.Kf3
Bd6+-
]
34...Nxb8
35.Nxb8
Bd6
[35...Bb4
36.Nc6
Bc3
37.Kf3+-
]
36.Nc6
Kf7?
[>=36...Bc7+-
]
37.Kf3
Kf6
38.h3
[38.Ke3!?
and White can already relax 38...g5
39.Kd3
Kf7+-
]
38...h5
[38...Bc5
39.Ke2
h5
40.Kd3+-
]
39.Nd8
[39.Ke3
keeps an even firmer grip 39...Bc5+
40.Kd3
Bf2+-
]
39...Bb4
[39...Ke7
40.Ne6+-
]
40.Ne6
[>=40.Ke2+-
]
40...g5??
terrible, but the game is lost in any case [>=40...Ba5+-
]
41.g4
h4
42.Ke3
Be7
43.Kd3
Kf7
44.Kc4
Ke8
45.Nc5
Bd6
[45...Kd8+-
otherwise it's curtains at once]
46.Nb7
Ba3
47.d6
Kd7
[47...Bb2
is one last hope 48.Nc5
Ba3+-
]
48.Kd5
Bb2
49.Nc5+
[49.Nc5+
Ke8
50.Ke6+-
] 1-0