how to play chess endgames book

142 How TO PLAY CHESS ENDGAMES
The zwischenschacn is often an important
weapon for the attacker. The immediate 1 '&xh4?
.l:td2 2 ~g3+ (2 h3 J:l.e5) 2 ... @h7 gives Black
good counterplay.
l ••• @f8 2 '&xh4 .l:te2 3 '&xf6 itJc4 4 "&h6+
@e7 s '&gs+ @f8 6 \Wes+ @g7 7 h4 .l:tdd2 8
\WgS+ @f8 9 @h2 itJe3
9 ... .l:txg2+? IO W/xg2 ltJe5 11 @h3 J:l.xg2 12
@xg2 +-.
10 WicS+ @g8 11 "&gs+ @f8 12 ~cs+ @g8
13 @g3 gxg2+ 14 @f4 ltJc4 15 hS .l:th2 16
.i.xc4 bxc417 a4 (D)
Queen and knight make an especially fearsome
duo in attack. The following example illustrates
Capablanca's Theorem, according to
which queen and knight are frequently a superior
tandem to queen and bishop:
7.10
V.Kupreichik-V.Gavrikov
USSR Ch (Frunze) 1981
17 ... J:l.h4+?
Now White will end up with two connected
passed pawns on the queenside. l 7 ... .l:tdg2 18
b5 c3 19 "&c8+ @h7 20 "&xc3 axb5 21 axb5
gh4+ 22 @e3 J:!.xh5 23 b6 ~h6 24 \':!Yd3+ ~hg6
offered better drawing chances.
18@g3 lldh219 ~g5+@f8 20 "&d8+@g7
21 '&gS+ @f8 22 \Wh6+ @e7 23 W/xa6 llxhS
24 as ll5h3+ 25 @£4 gh4+ 26 @e3 lla2 27
\We8 l:la3+ 28 @f2 e3 29 'fil'cS+ @d7 30 bS e2
3l@g3
31 "&xa3?! J:l.hl 32 \Wd3+ @e7 33 \We3+
@d7 34 \':!Yd2+ @e7 35 a6 c I°& 36 \':!Yxc I l!xc I
37 a7 +-.
31....l:tb4
3 i...J:l.ha4 32 \':!Yxc2 .l:txa5 33 b6 +-.
32 '11Hc6+!
Once again a decisive zwischenschach. After
the rash 32 \':!Yxc2? .l:txb5 33 ~d2+ @e6! White
cannot win either of the rooks.
32 ••• @dS 33 \':!Yxe2 llxbS 34 \':!Yd2+ 1-0
Oim resigned since one of his rooks is lost.
At first sight there does not seem to be much
danger, but Kupreichik has an expert understanding
of how to develop his initiative on the
light squares.
1 itJaS "&b4
After I .. .'&d3 2 '&xd3 exd3 3 @fl b6 4 LtJc4
+- Black loses a pawn.
I ... "&c8!? does not help either: 2 "&d5 '&g4 3
itJxb7 .i.xh4 4 lud.6 \Wf3+ 5 @gl .i.xg3 (D).
6 "&xf7+! (this liquidates into a won pawn
ending based on the outside passed pawns; not