Botvinnik Semi-Slav, The (Pedersen)
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BLACK'S 13TH MOVE ALTERNATNES 77<br />
19 'ii'xdS ltJb6 20 'ii'xcS+ cJi>g8 (D)<br />
Black's king is now relatively safe<br />
and with all his pieces in active positions<br />
he can easily claim compensation<br />
for the pawn. White's main problem is<br />
that he cannot just develop with, for<br />
example, 21 i.g2 or 21 f4 as this<br />
would run into 21...'iWxb2+ followed<br />
by ... ltJa4+. Hence, White must retreat<br />
the queen, when Black will increase<br />
the pressure with ... ltJa4 anyway.<br />
21 WVe3<br />
Others:<br />
a) 21 f4? 'ft'xb2+ 22 cJi>xb2 ltJa4+<br />
23 ~a3 ltJxc5 24 cJi>b4 ltJe4, and now<br />
Black wins after, for example, 25 i.g2<br />
a5+ 26 'ifi>xb5? ltJc3+ 27 cJi>xc4 :'c8+.<br />
b) 21 'iWd4 'iWxf3 22 'iff4 'ifxf4+ 23<br />
gxf4 :'e8 and Black is much better,<br />
Atalik-Ivanisevi6, Szeged 1997. White<br />
still has great difficulties getting his<br />
bishop out.<br />
21...ltJa4 22 :'d4 ltJxb2 23 :'f4<br />
'iVg7<br />
112-112 Bagaturov-Jaracz, Pardubice<br />
1994. A likely continuation is 24 'ug4<br />
l:tg6 25 :'xg6 fxg6 26 ii'e6+ ~h7 27<br />
'ifh3+ cJi>g8 28 ii'e6+ with a draw by<br />
perpetual check.