how to play chess endgames book

152 How TO PLAY CHESS ENDGAMES
the infiltration by the black rook on the d-file
(for more examples of such a transformation of
one advantage into another, see the next section).
18 .i.xgS?!
18 @e3 was more tenacious and should be
answered by Tartakower's I 8 ... @g6 +, since
18 ... lle8+ ?! 19 @f21:!.xel? would be a mistake:
20 @xel .i.xf4 21 gxf4 @e6 22 @f2 @d5 23
@e3 .i.fl 24 h4 @c4 25 @d2 and Black is unable
to penetrate; for example, 25 ... b5 26 @e3
b4 27 cxb4 cxb4 28 axb4 @xb4 29 @d4 =.
18 ••• hxg519@e3@f6 (D)
This deprives the white pieces of the important
support-point d4 and in particular restricts
the knight further.
6 .tgs r6 1 .tr4 wr1 s n gs
Steinitz uses his whole army to gain ever
more space.
9 1:!.xd8 1:!.xd8 10 .i.e3 h6
Now all Black's pawns are on dark squares.
The next step is to advance the f-pawn to f4.
111:!.el rs 12 f4 .tf6 13 g3 as!
With the aid of the deadly threat of rolling up
White's queenside with ... a4-a3, the knight will
be forced back further.
14 lt::lcl a4 15 a3 .i.c4 16 @f2 (D)
B
16 ... gxf4
16 .. J!d5 with the idea of ... b5-b4 was the alternative.
17 .bf4 .i.gS!
The strongest defender will now be exchanged,
after which it will be hard to prevent
20 h4?
This loses by force, but White seems to be in
a bad way in any case; for example, 20 1:!.h I
We5 21 fig! f4+ 22 ~f3 li.d5+ 23 @f2 (23@e2
@e4 24 gxf4 gxf4 25 fig7 .i.c4+ 26 Wei f3 27
h4 @e3 281:l.e7+ ~f4 291:l.g71:l.d6 30 h5 ~e3
31 fie7+ .i.e6 -+) 23 ... 1:!.h8 24 ~el+ @d6 25
gxf4 gxf4 26 c4 .i.c6 27 lt::ld3 ~xh3 -+ or 20
fig! @e5 21 h4 f4+ 22 gxf4+ gxf4+ 23 ~f3
.i.d5+ 24 @e2 @e4 -+.
20 ... gxh4 21 gxh4 1:!.e8+ 22 @f2 1:!.xel 23
@xel@eS!
23 .. .f4? allows the knight to slip away: 24
lt::le2 @f5 25 h5 @g5 26 h6 .i.d3 27 @f2 b5 28
c4 b4 29 lt::lc I li.g6 30 @f3 ==.
24 lt::le2 .ixe2 25 @xe2
In spite of the outside passed pawn, the pawn
ending is an easy win for Black owing to the
greater activity of his king.
25 ...@f4 26 c4 @g4 27 @e3 f4+ 28 @e4 f3
29@e3 @g3 0-1