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(1) Smyslov,V - [+]
64, 1938
[Nunn,John]
1.f5
gxf5
2.Bh3
Re8
The only move, otherwise the c-pawn is quickly decisive; for example [2...fxe4
3.Bxe6
fxe6
4.c7
Rc8
5.Rd8+
or; 2...c3
3.exf5
Bxa2
4.c7
] 3.exf5
[Not 3.c7?
Bc8
4.Bxf5
Ke7
and Black defends.] 3...Bc8
4.f6!
The key move, offering a piece to paralyse Black. 4...Bxh3
5.c7
a5
[5...Kg8
6.Rd8
Rf8
leads to more or less the same conclusion, since Black's king and rook are again immobilised; for example 7.Kc2
Bf5+
8.Kc3
Be6
9.a3
a5
10.a4
; 5...c3
6.Rd8
Bf5
is an attempt to prevent the white king attacking the c-pawns, but Black also falls into zugzwang in this line: 7.a4
a5
8.Kd1
c2+
9.Kc1
c4
10.Kd2
c3+
11.Kc1
and both Black pawns fall] 6.Rd8
[6.a4?
is wrong as White will need a tempo with the a-pawn later: 6...Kg8
7.Rd8
Rf8
8.Kc2
Bg4
9.Kc3
Be6
and White has no waiting move] 6...a4
7.Kb2!
[Not 7.Kc2?
a3
8.Kc3
Be6
and White has no tempo move.] 7...Be6
8.Kc2
This triangulation puts Black is in zugzwang. If he moves his bishop then White plays Kc3 followed by a3. 8...a3
9.Kc3
Black loses all his queenside pawns after which White wins using the a-pawn. 1-0
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