Botvinnik Semi-Slav, The (Pedersen)

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132 THE BOTVINNIK SEMI-SLAV (the simple 21 'it'xh4+!? is also worth considering) 2l...ttJc5 22 'it'xh4+ f6 23 ~h3 ± Peek-Savchenko, Groningen open 1993. b) 14 ... l:.b7! 15 d5 (Piket suggests 15 0-0-0 b4 16 lbd5 'it'g6 17 'it'xg6 fxg6 18 ~h3! with an initiative for White) 15 ... ~g7! (15... b4 16 dxe6 'it'xe6 17 ~xc4 'it'xe4+ 18 lbxe4 l:.c7 19 lbaS, followed by 0-0-0, gives White compensation) 16 l:.dl (16 dxe6 'it'xe6 17 'it'xe6+ fxe6 18 0-0-0 is better, after which White can claim some sort of compensation in view of a number of weak black pawns) 16 ... 0-0 17 d6!? l:.b6 18 lbe7+ 'it'h8 and White's attack is lost in the sands. 13 dxe5 "ilie7 14 i.g2 14lbe4? can be met by 14 ...'it'b4+. 14 ... ~b7 150-0-0 i.g7 (D) 16l:.d6! A major improvement on the previously played 16 f4. White sacrifices a second pawn in return for a rapid mobilization of all his forces. Black will have to accept the pawn offer to punish White for omitting f4, but the result is a difficult defence. After 16 f4 0-0 17 l:.d6 :ad8 18 l:.hd 1 l:.xd6 19 exd6 'it'd8 20 lbe4 'it'aS 21 'it'bl, Bronstein-Botvinnik, USSR Ch (Moscow) 1951, Black should play 21...h3! 22 ~xh3 c5 23 lbxc5 ~d5 with excellent play for Black in view of his two very powerful bishops - Botvinnik. 16 ... hxg3 16 ... 0-0 17 l:.hdl :ad8 18 'it'd2 l:.xd6 19 exd6 'it'f6? (19 ... 'it'd8 is more profound, but the advantage of White's move-order is shown after 20 d7!, when the strong passed pawn holds up the majority of Black's forces) 20 lbe4 'it'g6 21 d7 l:.d8 22 'it'f4 ± Peek-Van Linde, Groningen open 1997. 17 hxg3 "ilig5+ 18 f4 "ilixg3 19 "ilid2 b4 20 lbe4 c3!? 20 ... 'it'g6 21lbc5 c3 22 bxc3 bxc3 23 'it'f2 gives White the advantage. 21 bxc3 bxc3 22lbxc3 :b8 22 ... ~f8 23 :d3 ~a3+ 24 ~dl 'it'g6 25 l:.d7 ±. 23 l:.d3 'it' g6 24 lbe4 White has a terrific attack. While White is simply invading the d-file, Black's queen is merely a spectator from the kingside and can even be subjected to an attack after :g3. B) 11 ~e2lbd7! There is no need to delve into the alternatives for too long. The textmove has an obvious indication of being the best move in the position:

WHITE GAMBITS: 9 exf6!? 133 White has to react to the attack against what is currently his most powerful piece, namely the eS-knight. Here is a short survey of the alternatives: a) 1l ... ..td6? 12 ttJe4 ..tb4+ 13 ~f1 'fie7 14 a3 J.aS 15 ..thS ± Petursson-Isler, Bern 1992. b) ll.....tb4 12 ..to ..tb7 13 0-0 .ixc3 14 bxc3 a6 IS 'ue1 'ug8 16 ..thS 'ug7 17 ttJg4 'fie7 18 'fid2 ±. The h6- pawn is under attack, and Black reacted naturally to this with 18 .. J:tgS, attacking the bishop on hS, but was met by the blow 19 l::txe6! 'it'xe6 20 'ue1 in Dietze-SchOn, Bundesliga 198617. c) 1l.....tg7 12 a4 b4 13 ttJe4 'fIe7 140-00-0 IS f4 ':d8 16 ..txc4 f5 17 ttJcS ':d6 18 'ii'b3 ~h7 19 ':ae1 with strong pressure, Moskalenko-Shabalov, USSR 1988. d) 1l...h3 12 ..thS! (Black has to be very careful when and where to open the g-file; in this case it only helps White's attack) 12 ... hxg2 13 ,Ug1 'uh7 14 ..to ..tb7 IS ttJxbS ..tb4+ 16 ~e2 'ii'e7 17 ':xg2 ~f8 18 'it'c2 'uh8 19 'it'e4 with a substantial advantage to White, Ivanisevic-N.Pedersen, Zagan jr Wch 1997. e) 11.. . ..tb7 12..tO a6 13 0-0 (13 a4 ttJd7 14 ttJxd7 rJi>xd7 transposes to Line C2) 13 ... ttJd7 14 ..txc6 ..txc6 IS ttJxc6 ..td6 16 f4 'it'fS 17 'flo ttJf6 18 a4 with a slight advantage to White, Fiister-Egri, Hungary 1945. 12 ttJxc6 The only critical approach. Continuing in sacrificial style with 120-0 ttJxeS 13 dxeS 'fixeS 14 ..tf3 ..tb7 IS 'ue1 is dubious since Black defends well with lS ...'fid616 ttJxbS 'ilkxdl17 'uexd 1 cxbS 18 ..txb7 'ub8 19 ..tc6+ ~e7, as in the game Ree-Hamann, Netanya 1968. 12 ....ib7 13 ..tf3 a6! (D) w The key element in Black's defence. The bS-pawn is defended, thereby stabilizing the queenside. Black can then continue the completion of his development with ... J.g7 and ... 0-0, while ttJe4 by White at any stage can be met safely by ... 'fIf4 or ... 'fIfS. 14 0-0 J.g7 15 a4 b4 16 ttJe4 'ilkf4 17 'ilkc1 'fic7 Black only needs to avoid playing 17 ... 'fIxc1? 18 ttJd6+ ~f8 19 'uaxc1 ..txc6 20 ..txc6 'ua7 21 'uxc4 ±. 18 'it'xc4 ..txc6 19 ':ac1 ':c8! Simple and strong. 19 ... 0-020 'fIxc6 'ilkxc6 21 'uxc6 (Barlov-Karaklajic, Yugoslavia 1987) 21...,Ua7 is good enough for an equal position but nothing more. 20 'ilkxb4!? ..tf8 21 'fic3

132 THE BOTVINNIK SEMI-SLAV<br />

(the simple 21 'it'xh4+!? is also worth<br />

considering) 2l...ttJc5 22 'it'xh4+ f6 23<br />

~h3 ± Peek-Savchenko, Groningen<br />

open 1993.<br />

b) 14 ... l:.b7! 15 d5 (Piket suggests<br />

15 0-0-0 b4 16 lbd5 'it'g6 17 'it'xg6<br />

fxg6 18 ~h3! with an initiative for<br />

White) 15 ... ~g7! (15... b4 16 dxe6<br />

'it'xe6 17 ~xc4 'it'xe4+ 18 lbxe4 l:.c7<br />

19 lbaS, followed by 0-0-0, gives<br />

White compensation) 16 l:.dl (16 dxe6<br />

'it'xe6 17 'it'xe6+ fxe6 18 0-0-0 is<br />

better, after which White can claim<br />

some sort of compensation in view of a<br />

number of weak black pawns) 16 ... 0-0<br />

17 d6!? l:.b6 18 lbe7+ 'it'h8 and<br />

White's attack is lost in the sands.<br />

13 dxe5 "ilie7 14 i.g2<br />

14lbe4? can be met by 14 ...'it'b4+.<br />

14 ... ~b7 150-0-0 i.g7 (D)<br />

16l:.d6!<br />

A major improvement on the previously<br />

played 16 f4. White sacrifices a<br />

second pawn in return for a rapid mobilization<br />

of all his forces. Black will<br />

have to accept the pawn offer to punish<br />

White for omitting f4, but the result is<br />

a difficult defence.<br />

After 16 f4 0-0 17 l:.d6 :ad8 18<br />

l:.hd 1 l:.xd6 19 exd6 'it'd8 20 lbe4 'it'aS<br />

21 'it'bl, Bronstein-<strong>Botvinnik</strong>, USSR<br />

Ch (Moscow) 1951, Black should play<br />

21...h3! 22 ~xh3 c5 23 lbxc5 ~d5<br />

with excellent play for Black in view<br />

of his two very powerful bishops -<br />

<strong>Botvinnik</strong>.<br />

16 ... hxg3<br />

16 ... 0-0 17 l:.hdl :ad8 18 'it'd2<br />

l:.xd6 19 exd6 'it'f6? (19 ... 'it'd8 is more<br />

profound, but the advantage of White's<br />

move-order is shown after 20 d7!,<br />

when the strong passed pawn holds up<br />

the majority of Black's forces) 20 lbe4<br />

'it'g6 21 d7 l:.d8 22 'it'f4 ± Peek-Van<br />

Linde, Groningen open 1997.<br />

17 hxg3 "ilig5+ 18 f4 "ilixg3 19 "ilid2<br />

b4 20 lbe4 c3!?<br />

20 ... 'it'g6 21lbc5 c3 22 bxc3 bxc3<br />

23 'it'f2 gives White the advantage.<br />

21 bxc3 bxc3 22lbxc3 :b8<br />

22 ... ~f8 23 :d3 ~a3+ 24 ~dl<br />

'it'g6 25 l:.d7 ±.<br />

23 l:.d3 'it' g6 24 lbe4<br />

White has a terrific attack. While<br />

White is simply invading the d-file,<br />

Black's queen is merely a spectator<br />

from the kingside and can even be<br />

subjected to an attack after :g3.<br />

B)<br />

11 ~e2lbd7!<br />

<strong>The</strong>re is no need to delve into the<br />

alternatives for too long. <strong>The</strong> textmove<br />

has an obvious indication of being<br />

the best move in the position:

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