how to play chess endgames book

54 HOW TO PLAY CHESS ENDGAMES
1 c4!!
Without this move, White can make no progress.
1 ••. dxc4
l...bxc4 2 b5 axb5 3 Ab7 +-.
2 d5 Ad8 3 Ab6 @e7 4 Axc7 Axc7 5 Ab7
Ab8 6 Axa6 L7 7 Axb5 c3 8 L4 @d8 9
@b3 Ad4 10 @c4 Ae5 11 b5 @c8 12 b61-0
Of course, a breakthrough does not always
lead automatically to the promotion of a pawn.
In the following example a breakthrough is the
only possibility for White to try to win:
a) 9 ... g2+? IO@gl @h7 ll@h2@g7 I2h5
gxh5 13 f5 h4 14 f6+@f7 151:!h8 +-.
b) 9 ... 1:!b3? 10 @g2 @h7 11 @h3 g2+ 12
@xg2@g7 13 h5 +-.
10 @gl @g7 11 h5!
The only way. In such positions a passed h-
pawn is no use at all.
11 ... gxhS 12 rs h4 13 f6+ (D)
B
2.22
M.Stean - G.Sosonko
Hastings 1975/6
Despite the two extra pawns, at first glance it
seems impossible for White to improve his position.
His rook is passive and his king cannot
rush to its assistance, since Black would then
bombard the king with checks. Stean finds the
only practical chance, which resides in a pawn
breakthrough on the kingside.
1 f4 !!el+ 2 @d5 l'.!bl 3 @d41:!b2 4 @d3
1:!b3+ 5 @c21:!b6 6 g4!?
Unfortunately White cannot play this with
his king on h3, since after@h3 Black could always
pin the g3-pawn with .. J!b3.
6 .•. hxg47@d2
Before White proceeds on the kingside, his
king must first deal with the black passed
pawns.
7 ... g3 8 @e21:!b2+ 9 @fl @h71
Not:
13 ••• @f7!
13 ... @h7? 14 f7 l!bl+ (14 ... h3 )51:!h8+@g6
16 b8'& +-) 15 @g21:!b2+ 16 @h3 1:!h2+ 17
@g4 g2 18 @h5 ! g I~ I 91:!h8+ <.&xh8 and now,
as usual with so much firepower available, the
first check is decisive: 20 f8~+ @h7 21 ~h6+
@g8 22 b8~+ @f7 23 Wt'bf8#.
141:!h81:!bl+ 15 @g2 I!b2+ 16@h3 .a.b2+
17@g4 g218 @f5
181:!f8+ @g6 19 l!g8+ @xf6 20 @h5 gl\%'
21 1:!xgl I!b2 =.
18 ... gl~ 19 !'rh7+ @g8 20 1:!g7+ Wfxg7 21
b8'&+ ~f8 22 ~xh2 ~c8+ 1/i-111
Naturally the breakthrough can sometimes
be used to create counterplay.
In the following diagram, Leko seized the
chance to create a passed pawn:
1 f4! l'.!e3+ 2 Wf2 gxf4 31:!bS l:l:b3
3 ... l:l:g3 4 !'rf8 1:!xg4 5 b6 1:!g7 (5 @c6 6
1:!c8+ @xb6 7 Ihc4 =) 61:!xf4 @c5 (6 1:!b7 7
b3 =) 7 l:l:f3 @b4 (7... d5 8 b3 =) 8 @e3 @c5 9
@d2 @xb6 IO b3 =.
4 b6?!
Since the black rook is already controlling
the b-pawn, it would have been better to allow