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Botvinnik Semi-Slav, The (Pedersen)

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UHlMANN'S 16 :b1 53<br />

defence; if White could get his king to<br />

g5 and the pawn to f4 he would be<br />

winning; e.g., 33 ... ~e6?? 34 ~g5<br />

.ltc6 35 f4 .lte4 36 g4 .th7 37 h5 as 38<br />

~h6 .lte4 39 'i;g7 and White wins) 34<br />

~g5 .ltf3 35 ~f5 ~d5! 36 g4 ~d6 37<br />

h5 ~d5 38 ~f4 .ltd 1 39 ~g5.1tf3 40<br />

~f4 .ltdl 41 ~g5 .ltf3 42 ~f4 112-112<br />

Azmaiparashvili-Shirov, Madrid 1996.<br />

White cannot make progress as after<br />

42 h6? .lte4 43 f4 .lth7! White's king<br />

does not have access to h6 and thus<br />

White will even be losing.<br />

22 'it'xe4 .l:.de8<br />

Not 22 ... .l:.xh6? 23 'it'a8+ ltJb8 24<br />

'it'xb8+! winning.<br />

23 .ltg7! .l:.h5 24 .l:.dl (D)<br />

B<br />

B<br />

21 ... .ltxe4<br />

In comparison with note 'b3' to<br />

Black's 19th move above, 21.. . .ltxbl!?<br />

might still be feasible. <strong>The</strong> question is<br />

whether White has more than a perpetual<br />

check after 22 ltJd6+ ~c7 23 .ltf4<br />

~b6 24 ltJxc4+ ~b5 25 ltJd6+ 'it>b6.<br />

<strong>The</strong> only attempt, which could also be<br />

tried in the line with 19 ... .ltxe7, is 26<br />

a4 but 26 ... bxa3 27 ltJc4+ 'it'xc4 28<br />

'it'xc4 a2 29 exd8'it'+ .l:.xd8 gives<br />

White no real winning chances as the<br />

a-pawn is far too strong.<br />

24 ...'ii'b5<br />

White w

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