how to play chess endgames book

160 How TO PLAY CHESS ENDGAMES
lt:lc6 11.d3 8 lt:lxd4 11.xe2 9 lt:lxe2 and it is not
clear whether Black can win.
21!d3 (DJ
Or:
a) 2 JJ.d.7 11.c33l!c211.xaS 411.xa411.c7 -+.
b) 2 11.xa4 il.c3 (2 ... l!a8 3 11.b3 !ixa5 4
11.xe6 fxe6 5 l!c2 !ia7 should also work) 3 lt:lc4
11.xc4 4 J!c2 1!38 -+.
E9.06 ***/
How did White increase his advantage?
E) Supporting Passed Pawns
Bishops are very strong in support of their own
passed pawns. since they can lend a hand both at
short range or from a distance. If all goes well,
they can simply escort the pawn all the way.
2 •.• 11.b2! 3 11.xa4?!
After 311.d7! !ia8 4 .Le6 (4 lt:lc6? 11.c4-+)
4 .. .fxe6 5 lt:lc4 a3 6 lt:lxa3 11.xa3 Black still
faces considerable technical difficulties, although
he should prevail in the end.
3 ... l!a8 4 JJ.d.7 J!xaS 5 c6 11.c4 6 c7 J!cS 7
!id2!ixc7 0-1
Exercises (Solutions on pages 316-17)
9.10
S.Beshukov - V.Filippov
Russia Cup (Perm) 1997
1....si.e6!
In order to win Black must keep his bishops:
a) I ... 11.c3? 2 lmb3 axb3 3 l!d 1 b2 (3 .. ..!k8
4 11.a4 =) 4 Sl.e4 and White should defend.
b) 1 ... J!c8 is not so convincing: 2 !id3 (2
lt:lxb3? !ixc6 3 lt:lcl J!xc5 4 lt:la2 +) 2 ... 11.c2 3
l!e3 11.d4 (3 ... 11.b2? 4 !ie2 a3 5 J!xc2 J!xc6 6
lt:lb3 =) 4l!e211.bl 511.xa4l!a8611.c211.xc2 7
E9.07 ***/
Where is Black's fatal vulnerability?