Kasparov vs. Petrosian

Kasparov vs. Petrosian

Bugojno 1982

Bogo-Indian Defense

1 d4 Nf6 2 c4 e6 3 Nf3 Bb4+ 4 Bd2 Qe7 5 g3 Bxd2+ 6 Qxd2 0-0 7 Bg2 d5

After 7...d5

These days this variation of the Bogo-Indian is played almost exclusively with the idea of …d6 and …e5. It is logical for Black to put his pawns on dark squares, given that he has exchanged off his dark-squared bishop. 8 0-0 dxc4 Black is aiming to liquidate all the central pawns, but the danger is that White’s g2-bishop will exert nagging long-term pressure against Black queenside. The alternative plan is to support the d5-point by, for example, 8…Rd8 9 Rc1 c6. Although Black position is solid, White has a small but long-term advantage due to his more active bishop. 9 Na3

After 9 Na3

9…c5? But this is definitely wrong. As explained above, the whole plan is liquidating the centre has its dangers for Black; to make matters worse, Black executes this plans in a way which costs valuable time. 9…Rd8 is better; for example, 19 Qc2 (or10 Nxc4 c5 11 Rfd1 Na6 with just an edge for White) 10…c5 11 dxc5 Qxc5 12 Rfd1 offers White no more than a slight advantage. 10 dxc5! 10 Nxc4 allows Black to transpose into the previous note by 10…Rd8. 10…Qxc5 After 10…Rd8 White can keep the advantage by either 11 Qe3 Nd5 12 Qd4 or 11 Qb4 Na6 12 Qxc4 Qxc5 13 Qxc5 Nxc5 14 Ne5. 11 Rac1 Nc6 12 Nxc4 Sooner or later Black will have to move his queen again’ this loss of time explains why his 9th move was a mistake. 12…Qe7

After 12...Qe7

12….Rd8 13 Qf4 Qe7 (if 13…Nd5? then 14 Qxf7+!) 14 Nfe5 Nxe5 15 Nxe5 gives White the same time type of pressure as in the game. 13 Nfe5 Nxe5 14 Nxe5 It is not at all clear how Black can develop his queenside pieces. 14…Nd5 15 Rfd1 Stepping up the pressure. 15 Bxd5 Rd8 lets Black off the hook. 15…Nb6 Black hopes to play …f6 and …e5, so as to develop the c8-bishop, but this plan doesn’t even get off the ground. 16 Qa5!

After 16 Qa5!

Despite White’s pressure, accuracy is necessary to prevent Black freeing himself. This moves stops 16…f6 on account of 17 Nc4 Nxc4 18 Rxc4 followed by penetration on c7. 16…g6 The immediate 16…Rd8 fails because of Black’s weak back rank: 17 Nc4! Rxd1+ (17…Nd5 18 Bxd5 exd5 19 Nb6 wins) 18 Rxd1 Nd7 19 Qc7 is decisive. The moved plays prepares …Rd8, this time owning to 18 Qc5! (there is now no capture on d1 with check) 18…Qxc5 19 Rxd8+ Qf8 20 Rxf8+ Kxf8 21 Rc7 and White wins. 17…Nd5 18 e4 Blocking the fianchettoed bishop, but only for a moment. Of course, White has no interest in winning a pawn on d5, as Black would gain some freedom – for more. 18…Nb6 18…Qb4? Loses to 19 Rxd5. 19 Bf1! Re8

After 19...Re8

Black was intending 19…f6, but now this move fails to 20 Nc4 Nxc4 (20…Bd7 21 Nxb6 axb6 22 Wxb6 Bc6 23 a3 gives White a pawn more with a good position) 21 Rxc4 b6 22 Wc3 Ba6 23 Rc7 since the d3-rook is defended. White’s prophylactic play reminds one of Petrosian! 20 Rdd1! Another useful move, activating the f1-bishop. Black is now totally paralyzed. 20…Rf8 20…Bd7 loses after 21 Nxd7 Nxd7 22 Rc7. 21 a3! Kg7 22 b3 White slowly but surely prepares a4-a5. 22…Kg8 23 a4 Rd8

After 23...Rd8

Or 23…Kg7 24 Wd2, followed by a5. 24 Qc5! 1-0 After 24…Qxc5 (if 24…Qe8, then 25 N4 wins) 25 Rxd8+ Qf8 26 Rxf8+ Kxf8 27 Rc7 it is only a question of how many pawns Black is going to lose.

Source from:

GAMBIT: John Nunn’s 101 Brilliant Chess Miniatures (Pages 50 - 51)

#KasparovVsPetrosian

#chess

#chessmatches

#chessbrilliancy

#chessminiature

#chessnovelty

#chesslesson

#chesstutorial

#chesstactics

#chesstechniques