Sarajevo supertournament (16-29.05)
| Player | Title | ELO |
Country |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | Pts | Rank | |
| 1 | Sokolov, Ivan | g | 2637 | BIH | 1/2 | 0 | 1/2 | 0 | 1/2 | 1 | 1/2 | 0 | 1/2 | 1/2 | 1/2 | 4.5 | 7 | |
| 2 | Short, Nigel | g | 2683 | ENG | 1/2 | 1/2 | 0 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 0 | 0 | 4.0 | 8-11 | |
| 3 | Morozevich, Alexander | g | 2748 | RUS | 1 | 1/2 | 1/2 | 1/2 | 1 | 0 | 1/2 | 0 | 1 | 1/2 | 1/2 | 6.0 | 4-6 | |
| 4 | Shirov, Alexei | g | 2751 | ESP | 1/2 | 1 | 1/2 | 1/2 | 1 | 0 | 1 | 1/2 | 1 | 1 | 1 | 8.0 | 2-3 | |
| 5 | Kasparov, Gary | g | 2851 | RUS | 1 | 1/2 | 1/2 | 1/2 | 1 | 1 | 1 | 1/2 | 1 | 1/2 | 1 | 8.5 | 1 | |
| 6 | Georgiev, Kiril | g | 2677 | BUL | 1/2 | 1/2 | 0 | 0 | 0 | 1 | 1/2 | 1/2 | 1/2 | 1/2 | 0 | 4.0 | 8-11 | |
| 7 | Movsesian, Sergei | g | 2668 | SZE | 0 | 1/2 | 1 | 1 | 0 | 0 | 0 | 1/2 | 0 | 1/2 | 1/2 | 4.0 | 8-11 | |
| 8 | Bacrot, Etienne | g | 2594 | FRA | 1/2 | 1/2 | 1/2 | 0 | 0 | 1/2 | 1 | 0 | 0 | 0 | 0 | 3.0 | 12 | |
| 9 | Adams, Michael | g | 2715 | ENG | 1 | 1/2 | 1 | 1/2 | 1/2 | 1/2 | 1/2 | 1 | 1 | 1 | 1/2 | 8.0 | 2-3 | |
| 10 | Gurevich, Mikhail | g | 2694 | BEL | 1/2 | 1/2 | 0 | 0 | 0 | 1/2 | 1 | 1 | 0 | 0 | 1/2 | 4.0 | 8-11 | |
| 11 | Topalov, Veselin | g | 2702 | BUL | 1/2 | 1 | 1/2 | 0 | 1/2 | 1/2 | 1/2 | 1 | 0 | 1 | 1/2 | 6.0 | 4-6 | |
| 12 | Bareev, Evgeny | g | 2709 | RUS | 1/2 | 1 | 1/2 | 0 | 0 | 1 | 1/2 | 1 | 1/2 | 1/2 | 1/2 | 6.0 | 4-6 |
See also: Genrih Chepukaitis review
DAILY ROUND REVIEW
After some short respite in the previous round the participants have again produced the resulting games. Even the draw in the game A.Morozevich vs.E.Bareev cannot be called peaceful. There happened very big complications and the both players were compelled to apply a lot of their fantasy. On the contrary, the game between the two compatriots Kir.Georgiev and V.Topalov was played relatively smoothly. White refused Benoni Defense in favour of the popular in early 80-s variation of the English Opening, but he got nothing but little troubles in the ending. Moreover, he was not able to hold the draw. M.Adams has won his first victory in this tournament. In some imperceptible way his pieces crept to the residence of White’s King and in spite of the full material balance his opponent, E.Bacrot resigned already on move 27. M. Gurevich coped also to reach his first win. Despite the three awful defeats in the first four rounds he did not part with the fighting spirit. With the brave piece sacrifice Black demolished White’s pawn center, developed the strong initiative and could get to the opponent’s King. Under the threat of the great material losses S. Movsesian had to resign. One of the brilliants in Round 5 was A. Shirov’s victory upon N. Short. White was gradually increasing the pressure using his superiority on the dark squares. In the far ending white succeeded to carry out the elegant combination started with 51.h5! Perhaps, Black could have defended better. For instance, instead of 53…Re7 more stubborn was 53... Kg7 to meet 54. Bxe6 Bxe6 55. Rxe6 Rxe6 56. Rxe6 with 56... Rh6, and the Pawn ending would not be suitable for White. In that case he would have had to look for the winning chances in the Rook ending after 57. Rb6. The point of White’s combination was the move 55.Rg2!! that brought Black in Zugzwang. After 55...Rg8, 56. Rf2 would be crushing, and in case 56... exf5 56. Rxf5+ Ke6 57.Rgf2 there would appear the terrible threat Rf5-f6#. After N.Short’s move Black was compelled to resign soon otherwise he would miss the Q-side Pawns. The game G. Kasparov - I. Sokolov has not seen any special struggle. White wins a quick and convincing victory.
Kasparov, G. - Sokolov, I [C42]
1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4 Nb4 9. Be2 O-O 10. Nc3 Bf5
The played Petroff Defense is considered to be one of the most reliable beginnings against 1.e2-e4. However, in the recent time White has got some achievements in this field. For example, at the event in Indonesia (finished in May, 2000) the other popular line 10…Be6 11. Ne5 f6 12. Nf3 c5 13. Be3 Rc8 14. dxc5 Bxc5 was met by 15. Bxc5! Rxc5 16. Qb3 a5 17. Rad1, and White succeeded to get the advantage in the game Khalifman. A – Karpov.A., (Bali, 2000). The fresh line 10... b6 was also successfully parried after 11. a3 Nxc3 12. bxc3 Nc6 13. cxd5 Qxd5 14. Re1 Bb7 15. Bd3 Rae8 16. c4 Qd8 17. d5 Kasparov. G – Olafsson. H., (Kopavogur, 2000).
11. a3 Nxc3 12. bxc3 Nc6 13. Re1
The other possibility is 13. cxd5 Qxd5 14. c4. Let me remind that a year ago at Bosna Super - 1999 A.Morozevich defeated A.Shirov with this line.
13... Bf6 14. Bf4 Ne7?!
This way is new but not successful. Here the prospective Kasparov’s opponent at the match in Autumn this year, V. Kramnik, used 14…Rc8 (Amber 1999, Monaco). This position also appeared in I.Sokolov’s games, for instance, 14... Na5 15. cxd5 Qxd5 16. Bf1 b6 17. Ne5 Anand - I Sokolov (Kopavogur, 2000), and white succeeded to win that game.
15. Qb3 b6 16. cxd5 Nxd5
There was not other move. After 16... Qxd5 17. Bc4 Qd8 18. Ne5 Black would run into problems with the square f7.
17. Be5!
The strong move, interrupting the coordination of Black’s pieces.
17... Bg4?
Black had here the very difficult choice, and his mistake is quite understandable. The immediate Bishop’s retreat 17…Be7 would be strongly met by 18.Nb5. In case of the swap 17... Bxe5 Black would come to the unpleasant ending after 18. Nxe5 Qd6 19. Bf3 Rad8 20. Bxd5 Qxd5 21. Qxd5 Rxd5 22. Nc6. In case of the relatively more reliable 17... c6 18. c4 Nc7 Black probably would not like 19. Rad1 Ne6 20. Qe3 with the rather disturbing threat of the break in center d4-d5.
18. Rad1 Be7 19. h3 Bh5
The swap 19... Bxf3? Was not acceptable for Black. After 20. Bxf3 it would not be possible to keep the Knight in center with the move 20... c6 because of 21. c4, with the hopeless position for Black.
20. g4!
This resolute move virtually terminates the game in White’s favor.
20... Bg6 21. Bg3 Nf6
It is hard to make a good advice for Black. After 21...c6 22. Ne5 Rc8 23. Ba6 he would miss the exchange.
22. Ne5 Ne4
There was no escape after 22... Be4 23. Bc4 Bd5 because of 24.g5 Bxc4 25.Qxc4 Nd5 26. Nc6 Qd7 27. Qxd5!, and White would win the piece.
23. Bf3 Nxg3 24. Nc6 Qd6 25. Nxe7+ Kh8 26. Bxa8. Black resigned.
After the sixth round there
were no changes in the top half of the tournament table. The reason was that the
majority of the games ended in draws, although those results could have been
different. For instance, G. Kasparov, as black against Short, with the help of
his opponent succeeded to get a very pretty Sicilian endgame. However, in the
further part of the game he was playing less resolutely and missed a good
deal of his advantage, and tenacious Short managed to hold the material balance.
On the control move the both opponents changed with the mistakes in the time
pressure, and came to the equal Rook ending. The other leader, A.Shirov played
Black against A. Morozevich and was a bit suffering in Petroff Defense, but
everything finished luckily for the Spanish grandmaster. E. Bareev who was half
a point behind the leaders played as White against M. Adams. In the English
Opening Bareev got more spacious position, but after that Black managed to
promote the principal advance d6-d5 following
with the exchange sacrifice and captured the initiative play upon the light
squares. Still, E. Bareev was able to maintain the balance with his resourceful
play. V. Topalov as White was
trying his best to defeat Movsesian who was yet at the bottom. In King’s
Indian line White has strategically overplayed his opponent, but before the time
control he misused the advantage in the complications. After that arose the
ending which White could hardly win in spite of his “two-Bishop advantage”.
Seeking after win, White overstepped the sensible limits, and Black’s Pawn
slipped to the queening rank. Still, Black has made it too hastily (75…Nd5!
would win instead of 75…h2). In the end Black’s Queen could not cope with
two White’s Bishops. The draw without any significant struggle was fixed just
in the game I. Sokolov – Kir. Georgiev. The only resulting game in that round
was one of M. Gurevich vs. E. Bacrot
Gurevich, M.- Bacrot, E. [A26]
1. c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O O-O 7.d3 d6 8.Rb1 a5 9.a3 Re8
In Round 4 the game E. Bareev-E. Bacrot (Sarajevo, 2000) saw here 9...h6, but after 10.b4 axb4 11.axb4 Be6 12.b5 Ne7 13.Qb3 c6 14.Ba3 Black ran into the certain troubles. Perhaps, that made the French grandmaster to use the other approved line.
10.Bg5
White is going to eliminate one of the main defenders of the squares d5 and e4 to enforce the pressure along the diagonal a8-h1
10...h6 11.Bxf6 Bxf6 12.b4 axb4 13.axb4 Bg7 14.b5 Ne7
The retreat into the center - 14...Nd4 would bring Black the certain problems after 15.Nxd4 exd4 16. Nd5 since it would be not easy to get rid smoothly of the Knight d5.
15.Qb3
The natural move 15. Nd2 is out of fashion because of 15...e4! 16.Qc2 ( bad is 16.Ncxe4? in view of 16...f5) 16...e3! 17.fxe3 Nf5, and Black has a splendid play (R. Vaganian – J. Lautier, Manila, izt, 1990)
15...c6
Black is intending to build as soon as possible a barrier on the diagonal a8-h1 against White’s Bishop.
16.Nd2 Be6 17.Rfc1 d5 18.Qb4
In case of the immediate pawns swap 18.bxc6 bxc6 19.cxd5 cxd5 White would have no advantage as it was shown in the game K. Bischoff – J. Smejkal, Munich, 1988.
18...Bf8
A good waiting move. Black continues to keep the tension in the center. Earlier 18...dxc4 was tried, and after 19.bxc6 bxc6 20.Nxc4 Nd5 21.Nxd5 cxd5 22.Nb6 Rb8 23.Qc5 White managed to get a bit more pleasant play in the game J. Hickl – S. Kindermann Altenkirchen, 1999.
19.Qb2 Bg7 20.Qc2 Kh7
The position is equal, and Black is still waiting, virtually staying motionless. Yet his last move has a bit uncovered the Pawn f7 to give the opponent the cause to start the actions.
21.Nb3!
A brave move. White sacrifices a Pawn to send his Knight to c5.
21... dxc4
The extra Pawn is worth taking. If Black tried to cover c5 with 21...Qd6, then after 22.bxc6 bxc6 23.cxd5 cxd5 24.Nb5 White’s Knights would torture Black’s Q-side.
22.dxc4 Bxc4 23.Nc5 cxb5
Black is trying to cause further simplifications. After 23...Qc7 24.bxc6 bxc6 25.Rb7 Qa5 26.N3e4 Black would have much troubles to eliminate the activity if White’s pieces. Another opportunity was 23...b6, but after 24.N5a4 Bd5 ( in case 24...Nf5 25.bxc6 Nd4 26.Qd1 Nxe2+ 27.Nxe2 Qxd1+ 28.Rxd1 Rxa4 29.Nc3 the passed pawn "c" would bring Black a lot of problems in future) 25.Rd1 Qb8 26.bxc6 Bxg2 27.Kxg2 Nxc6 28.Nxb6 Nd4 29.Qe4 White would also keep the slight initiative.
24.Nxb5 Bxb5 25.Rxb5 Nf5?
After this move Black unexpectedly misses a pawn. Preferable would be 25...Ra7. In case of 26.Nxb7 (any swaps are in Black’s favour, and 25. Rd1 Qc7 26. Rd7 is well met by 26...Ra1+) 26...Qd7 Black can parry 27. Rc5 Rxb7 28. Rd1 with the important intermediate move 28...Nd5! and after 29.Rcxd5 Qe7 he would have real chances to balance the position gradually.
26.Rxb7 Rc8
The two terrible threats Rb7-d7 и Rb7xf7 could not be parried simultaneously. After 26...Nd4 27.Qc4 the both threats are actual and in case 26...Qf6 27.Bd5 Nd6 28.Ne4 Nxe4 29.Qxe4 Rf8 30.Rc6 Black would also come to the disaster.
27.Rxf7 Nd4 28.Qa2 Re7 29.Rxe7 Qxe7 30.Nd3 Rxc1 31.Nxc1 e4
Black is trying to disclose the diagonal a1-h8 for his Bishop.
32.Qb1 e3 33.f4
Of course, White has no sense to swap. The Pawn e3 will become the source of Black’s troubles.
33...Qc7 34.Kf1
White is not going to miss the stroke 34...Qxc1! followed by 35...Nxe2+
34...Kh8
Black gets out his King out of harm, although he could have demanded here the immediate swap of the Queens - 34...Qc2.
35.Nd3
At this moment White could have prevented the further simplifications with 35.Be4!. The opposite-coloured Bishops on board just promote the attack against Black’s King.
35...Qc2 36.Qxc2 Nxc2
Black make the safe life for his King with the swap of the Queens. To reach the full happiness he ought to swap the Knights, but White is not going to permit it.
37.Be4 g5 38 Nc5 Nd4 39.fxg5 hxg5 40.Bb1 Bf8?!
Here Black does not find the right places for his pieces. The ideal arrangement for Black would be the position of his Knight on e5 and Bishop on d4. Still, it would be not so easy to reach since the pawn g5 could be missed on the way to that arrangement. Black could try to apply that idea with 40...Nc6 41.Bf5 Ne5 (bad is 41...Bd4? because of 42.Ne4) 42.Kg2 Bf8, to meet 43.Ne4 or 43.Ne6 by 43...Be7, with the following transfer of his King to the Pawn g5.
41.Nd7 Bg7 42.Be4 Nb3 43.Bd5 Nd4
In case Black did not admit White’s King to the Pawn e3 with 43...Nd2+ 44.Kg2 Bd4, he would have had the great problems with the Pawn g5 after 45.Kh3 Kg7 46.Kg4 Kh6 47.Nf8.
44.Nb6
44...Nf5?
Black has to leave the squared4 for his Bishop in view of the threat Nb6-c4, but among the several possible retreats he has chosen not the best for the Knight. After 44...Nb5 45.Nc4 Bd4 White’s King could not reach the pawn e3 so easy.
45.Nc4 Bd4 46.Kg2 Kg7
Black could temporarily prevent White’s King coming to the center with 46...g4 47.Be6 Nh6, but still after 48.h3 gxh3 49.Kxh3 White’s King would inevitably stretch to the Pawn e3. Still, in that case the reduction of the pawns number would be in Black’s favour.
47.Be6 Ne7
After 47...Kf6 48.Bxf5 Kxf5 49. Nd6 (immature would be 49.Kf3 in view of 49...g4+) 49...Ke5 50.Nb5 Bc5 51.Kf3 White would capture the Pawn e3.
48.Kf3 Kf6 49.Ke4 Ba1 50.Bd7 Bc3 51.Nxe3
The aim has been achieved.
51...Ba1 52.Ba4 Bb2 53.Nc4 Ba1 54.Nb6 Bb2 55.Kf3 Bd4 56.Nd7 Kf5 57.Bc2 Ke6 58.Nf8. Black resigned.
The loss of the third Pawn is inevitable for him.
Round 7
After Round 7 the tournament at last has got its single leader - A.Shirov who defeated E.Bareev in the complicated and interesting fight not reckoning with the material sacrifices. The other prospective winner of the tournament, G. Kasparov as White, did not succeed to pass A. Morozevich without any loss. In Wiener variation of the Queen's Gambit the World Champion #13 sacrificed several Pawns but the gift was too lavish. If Black were not too modest and did not part with his Knight for nothing (18...Qh4! instead of 18... Qg5 or intermediately 19.... Rc8!? and after 20. Kb1 - 20... Qa4 21.b3 Bxb3), the tournament could have seen the loudest sensation. But the game itself ended in a draw with in view of the inevitable perpetual check. Of the other games, the faultless M. Adams' victory over M. Gurevich should be mentioned. M. Adams was presented with a Pawn, and he realized it elegantly in the Rook ending. V. Topalov could overstep the 50%-barrier and climb up to the level of "+1". He proposed E.Bacrot to choose between the Pawn and the exchange, and captured the initiative up to the end of the game. I. Sokolov won his first victory at the tournament. S. Movsesian voluntarily agreed to play against I. Sokolov the position with the isolated Pawn, but got no counter play and gradually appeared in the hopeless situation. The game of Kir. Georgiev vs.N.Short looked rather dull in comparison to the others. White had not got anything special after the beginning and was trying for long to find some chances for win, but Black did not want to make any mistake. So, the draw was agreed.
Shirov A. - Bareev E. [B12]
1. e4 c6 2. d4 d5 3. e5 Bf5 4. c3 e6 5. Be3 Qb6 6. Qb3 h5
The opponents are playing rather a smooth line in Caro-Kann. With his last move Black is trying to conquer some space at the K-side. As a rule, decisions of such kind are taken later on, after White's advance f2-f4. It should be mentioned that two years ago at Russia championship Bareev preferred 6... Nd7. After 7. Nd2 Ne7 8. f4 Rc8 9. Ngf3 c5 10. dxc5 Nxc5 11.Qxb6 axb6 12. Bb5+ White managed to get an advantage (Aseev K. - Bareev E. St Petersburg, 1998). A Shirov recently was to play against the similar line with 6... Ne7 at his successful tournament, Amber 2000. After 7. Nd2 Bg6 8. f4 Nd7 9. Ngf3 a5 10. Qxb6 Nxb6 11. a4 Nf5 12. Bf2 h5 13. g3 Nd7 (13... Be7 was seen in Gelfand B. - Karpov A. Monaco, active, 2000) 14. Be2 f6, with mutual chances, Shirov A. - Anand V. Monaco (blindfold), 2000.
7. Nd2 Nh6
The position after 7.Nd2 was played in practice, but Black has made the new move.
8. Be2 h4 9. h3 Be7 10. Ngf3 Nd7 11. O-O Bg6 12. Bg5
The negative consequences of early prophylaxis with h7-h5 are now being sound.
12... Nf5
The ending after 12... Qxb3 13. axb3 would be a concession on Black's part, but his position in that case would be as passive as solid.
13. Bxe7 Nxe7
14. Qa3!
On the previous move Black had the last opportunity to swap the queens. His refusal permits White to struggle in the middle game. Also, it important that Black's Rooks are disconnected and castling is hardly possible. While the position is closed the bad cooperation of Black's pieces is not so appreciable, but it can become the decisive matter if the play discloses.
14... Nf5
After 14... c5 Black could establish the tension in the center but 15. Nb3 (the proper move 15. c4 is still not possible in view of 15... cxd4) would make him play 15... c4 (after 15... Rc8, 16. c4 is already possible) 16. Nbd2 Qc7 17. b3 b5 18. Qb2, and White will open the Q-side with a2-a4.
15. Rac1 a5
Black is compelled to stay motionless. The last move is intended to indirectly prevent c3-c4. The sharp move15…c5?! Would be bad for Black because of 16. Qa4 Rd8 (not 16... Qxb2? in view of 17. Bb5, and Black's Queen is in the trap) 17. dxc5 Qxc5, and the position is getting disclosed.
16. Rfe1 Ne7 17. Bd1
The essence of the prophylaxis with a7-a5 would be understandable in case of immediate 17. c4. Then Black would have 17... Qb4.
17... Ra7
Since any Black's action is harmful for him (for instance in case 17... c5? 18. Ba4 Nc6 19. c4 Black will commit the great troubles), Black is waiting for White's activity.
18. Bc2
White, in his turn is not going to hurry. The swap of the light-coloured Bishops will be only in his favour.
18... Nf8 19. Ng5 Bxc2 20. Rxc2 Nf5
21. c4!!
This move starts the grandiose idea. White sacrifices the Pawn just to disclose the play. Besides, Black has the opportunity to take it with a tempo. Still, White's plan should be correct for at least 99% thanks to the ugly position of Black's Rook a7.
21... Nxd4
After the swap of the light-coloured Bishops 21... Qb4 doesn't work because of 22. Qd3, but here the eager move 22... dxc4 23. Rxc4 Qxb2 would be easily refuted with 24. d5!. The other capture of the Pawn - 21... Qxd4 would result in opening of the play and White's strongest attack after 22. Ndf3 Qb6 23. cxd5 exd5 24. e6.
22. Rcc1 Rh5
Black's pieces are misplaced on the diagonal a7-g1 and it is not easy to take them away luckily from this position. For example, 22... Qb4 would be strongly met with White's Queen transfer to the K-side by 23. Qe3 c5 24. a3 Qb6 25. Qf4. After 22... Nd7 or 22... Nf5 White would answer 23. cxd5 exd5 24. e6. The defensive move 22... Ra6 would permit White to develop the decisive attack by 23. Qd3 Rh5 24. c5 Qxb2 (after 24... Qd8 it is possible 25. Nxf7) 25. Rb1 Qc2 26. Qxd4 Rxg5 27. Rxb7 Qg6 28. Ne4.
23. Qe3 Ne2
Black is trying to get rid quickly of the active White's Knight g5. After 23... Ra6 24. Qf4 Nf5 25. cxd5 White would develop the initiative. In case of 23... Ng6 (not permitting the Queen to f4) it would be possible 24. cxd5 exd5 25. Nxf7! Kxf7 26. e6+ Kg8 27. Nb3, taking back the sacrificed piece. After 23... Nd7 24. cxd5 cxd5 (The same positions would arise in case 24... Nf5 25. Qf4) 25. Rc8 Ke7 26. Qf4 Nf5 Black should take into consideration with the idea to advance 28.g4!, for instance 27... Qxb2? ïîéòè 28. g4! In case 27... Qd4, White would play just 28. Qc1 with a good compensation for the pawn.
24. Qxe2 Rxg5 25. Nf3 Rh5 26. cxd5 exd5 27. e6
27. Nd4!? would look more natural, for example 27…g6 28. Qg4 Ra8 and just now 29. e6.
27... fxe6
In case of 27... Nxe6 28. Nd4 Rh6 29. Qe5 Black would have to parry the two unpleasant threats: 30. Nf5 è 30. Qxg7.
28. Nd4 Rh6 29. Nf5 Rf6
After 29... Rh7, 30. Qe5 would be strong, and if 29... Rg6, then 30. Qh5 is good.
30. Nxg7+ Kd7 31. Rc3 Qb4 32. Qe3 b6
32... d4 would be met with 33. Rd1.
33. a3!
Again White is ready to sacrifice his material.
33... Qe7
After 33... Qxb2 34. Rb3 d4!? the play would become the exchange of blows - 35. Rd1! (the Queen must not leave e3 because of vulnerability of the square f2) 35... Kc8 36. Rxd4 Qa1+ 37. Kh2 Rxg7 38. Rxb6 and White has the decisive attack despite he is a piece down. Those who doubt, please, you are welcome to send your messages to: gmchess @ comset.net.
34. Qxb6 Rc7 35. Rec1 e5
35... Qxg7 is prohibited because of 36. Rxc6.
36. Nh5
White does not look for the easy ways. After 36. Nf5 following with 37. Nxh4 he would get the extra Pawn in the luxurious position. After the move in the game White's Knight will appear into the unpleasant company of the Black's pieces.
36... Rh6 37. b4 axb4 38. axb4 Qg5
The Knight is tabooed: 38... Rxh5 39. Rxc6.
39. b5 c5 40. Qa5 Ne6
Perhaps, Black had better make a threat of mate with 40... Rg6. After 41. g4 hxg3 (in case of 41... Qxh5 42. b6 Rxg4+ 43. Kf1! White would have the decisive attack) 42. Nxg3 Ne6 43. b6 Rb7 White's task would appear to be a bit more difficult.
41. b6 Rb7
42. Qa6!
White is preparing the decisive blow upon Black's position trying to involve Black's King onto c6, under attack of all White's pieces, and the Knight h5 is of no importance.
42... Nd8
After 42... Kc6 White would reach his aim with 43. Qa8 Rg6 (after 43... Rhh7 White would have the sufficient reply 44. Qc8 Kd6 45. Rxc5) 44. Rxc5 Nxc5 45. Qc8 Kd6 46. Qxc5 Ke6 47. Qc6 Kf5 48. Qc8 Ke4 (if 48... Re6, then 49. Rc6) 49. Qc2 Kd4 50. Rd1, and White is mating.
43. Rxc5 Rhxb6 44. Rxd5+ Ke7 45. Qa3+ Kf7 46. Qf3+ Kg6 47. Rc4
Black resigned. White's Rook will transfer onto g4 with the decisive effect.
Round 8
The main game of the round was by all means one of the tournament leader, A.Shirov vs. his nearest pursuer G.Kasparov. Their consistency in upholding their principles foreboded the dispute in one of the sharpest variations of Sicilian Defense with 6. Be3. The beginning looked very promising but the game in whole was not an event. A.Shirov decided not to tempt fate, caused a series of simplifications and bring the play to the ending where White's pieces activity sufficiently compensated for some defects of his pawn structure. When Black's passed h-Pawn was inevitably to leave the board, the draw was agreed. The other two participants - A.Morozevich and M.Adams, took this draw into consideration. A.Morozevich as White succeeded to beat the Bulgarian grandmaster Kir.Georgiev, moved him down to 50%-level. M.Adams had a more difficult task. He played as Black against the other Bulgarian - V.Topalov. The opponents passed through the corridor of the beginning and reached the position where the result depended very much on the home preparation. It appeared that M.Adams was more successful. So, it was he who won that game. Thus, three rounds before the end of the tournament Bosna Super, half a point behind the leader are the three participants: G.Kasparov, A.Morozevich and M.Adams. E.Bareev and M.Gurevich probably were still touched with the recollections if the previous round. They made just the two their own moves (earlier only 14.b5 was seen in practice) and preferred to part in peace. I.Sokolov and E.Bacrot started the chess dispute in Queen's Gambit on the merits and flaws of "Carlsbad " structure. Black has got rid of the weak c6-Pawn and convinced the opponent that the play is equal. N.Short has not yet won any victory. The same can be said about his opponent S.Movsesian. Alas, their game was not a success either.
Topalov V. - Adams M. [C89]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3
V.Topalov demonstrates he is ready to start the theoretical dispute on Marshall Attack, one of the sharpest variations in Ruy Lopez.
8... d5
Adams accepts the challenge.
9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Re4 g5!
This move is well known and very strong. Black takes under control the square h4. About a year ago the English grandmaster tried 15... Bb7?!, but after 16. Rh4 Qe6 17. Nd2 f5 18. Qh5! h6 19. Nf3 Black committed the troubles (Leko P. - Adams M. Dortmund, 1999).
16. Qf3
16. Bxg5? is bad because of 16... Qf5, and the Rook and the Bishop are attacked
16... Bf5 17. Bc2 Bxe4
Black simply takes the exchange. The ingenious move 17... Bf4!? according to J Nunn would lead to some White's superiority after 18. Nd2 Nf6 19. Re1 Bxc2 20. gxf4.
18. Bxe4 Qe6 19. Bxg5 f5
20. Bxd5?
This is the case when the new move is worse than the old one. Frankly speaking it is a pity - to give up the light-coloured Bishop. The frequently tried move 20.Bd3 looks more consistent. In case of 20... f4 Black would be compelled to play the ending with the two pawns compensating White for the exchange after 21. Qe4 Qxe4 22. Bxe4. Or perhaps M. Adams was going to try the recommendation of his compatriot J. Nunn: 20... h6! 21. Bd2 21...Ra7 following with Rg7 and f5- f4.
20... cxd5
Black takes the Bishop with the Pawn, and it looks correctly since f5-f4 would gain more effect when Black's Queen is on e6. After 20... Qxd5 21. Nd2 21... f4?! White would reply 22. Qg4.
21. Nd2 f4 22. Bxf4
White is going with the stream that will bring him to the very difficult ending. The attempt to resist to the fate with 22. g4 Ra7 ( 22... Rae8 looks here too smooth) 23. h3 Rg7 24. Bh4 h5 25. g5 Be7 would lead to the loss of the Pawn.
22... Bxf4 23. gxf4 Ra7 24. Kh1 Re7
Black improves his control under e-file. After 24... Raf7 25. Rg1+ Kh8 26. Qe3 White would have been playing.
25. Rg1+ Kh8
The Black's Queen invasion to e2 is threatening.
26. Nf1
26... Qe4!
Here 26... Qe2 27. Qg2 Qxb2 28. Ne3 would be not reasonable since White would get some counter play. But after the Queens swap White's position becomes hopeless.
27. Kg2
White could not resist after 27. Qxe4 Rxe4 28. Ne3 Rexf4 either.
27... Qxf3+ 28. Kxf3 Re1 29. Rh1 Re4 30. Nd2 Rexf4 31. Ke3 Rxf2 32. a4 Rg2
Black refused to play 32... bxa4, perhaps in view of 33.c4.
33. axb5 axb5 34. b3 Rff2 35. Nf3 Rb2 36. b4 Rgc2 37. Kd3 Rf2 38. Ke3 Rbe2 39. Kd3 Ra2 40. Ke3 Rae2 41. Kd3 Re4 42. Ne5
More stubborn was 42. Nd2, but it would change nothing about the game result. After 42... Rh4 43. h3 Rg2 44. Nf1 (in case of 44. Nb1 Rg3 45. Kc2 Rhxh3 46. Rxh3 Rxh3 47. Na3 Rg3 48. Nxb5 h5 Black' pawn "h" would easily queen in contrast to White's pawn "b") 44... Re4 45. Nd2 Rg3 46. Kc2 Ree3 White would not agonize too long.
42... Rfe2
White resigned. The only defense from the mate is 43.Ng4, but after 43... h5 this defender would not live long.
Round 9
The tournament leader, A.Shirov has retained his position. He succeeded as Black to defeat Kir.Georgiev. Shirov's nearest pursuers G.Kasparov, M.Adams and A.Morozevich, have also tried to advance, but not all of them succeeded. G.Kasparov playing smoothly in the Rook ending managed to outwit E.Bareev just before the first control and won a victory. M.Adams as White against I.Sokolov played the Open variation in Ruy Lopez and was able to exploit the opponent's risky move h7-h5, and grasped the strong initiative with the exchange sacrifice. In the following play White's passed Pawns at the K-side became so sound that I. Sokolov was compelled to resign. A.Morozevich played as Black vs. S.Movsesian, who was trailing in the tournament table at that moment. In that game Morozevich was pressing very much towards a win and overstepped all the limits. Seeking after complications Black sacrificed the exchange but he did not get any proper compensation and lost the game. That was the first defeat of Morozevich at the tournament. V.Topalov's fate in the tournament reminds of driving on a swing. His losses and wins alternate with each other. In Round 9 he had the raise. The Bulgarian grandmaster as black managed to beat M.Gurevich. The game of E. Bacrot vs. N. Short was the only one ended in a draw. During all the game White was standing more pleasant but was not able to increase his superiority.
Georgiev. Ki - Shirov. A. [D17]
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5
The main line of Slav Defense is one of the tough arguments for the system Black has used. 6. e3 would lead to a slower play.
6... e6 7. f3 Bb4 8. e4 Bxe4 9. fxe4 Nxe4 10. Bd2 Qxd4 11. Nxe4 Qxe4+ 12. Qe2 Bxd2+ 13. Kxd2 Qd5+ 14. Kc2 Na6 15. Nxc4 O-O
This is the most natural way. Black is going just to complete the development. Three month before in Kramnik, V. - Shirov, A. (Linares, 2000) the other known move - 15... b5 - was tried. After 16. axb5 Nb4+ 17. Kc3 cxb5 18. Rd1 Qc5 19. Qe5 Nd5+ 20. Rxd5 b4+ 21. Kb3 Qxd5 22. Be2 black was to run across certain troubles.
16. Qf3 Qc5 17. Be2 Nb4+ 18. Kb1 Rad8 19. Rc1 Rd4
Black would like to transfer his Queen to the diagonal b1-h7, but it is not easy to do it now. After 19... Qg5 20. Qg4! Qc5 21. Ra3 Rd4 22. Qh5 (Beliavsky, A. - Shirov, A. (Belgrade, 1997) white has got an advantage.
20. Ra3 Rfd8 21. a5
It is a novelty. After this move Black cannot support his Knight b4 with the a-Pawn. But White should be ready to pay for it: Black pieces could in some cases touch the separated Pawn a5. In case of 21. g4 Qg5 22. Rb3 a5 23. h4 Black forced the draw: 23... Qg6+ 24. Ka1 Nc2 25. Ka2 Nb4 26. Ka1 Nc2 (Van Wely, L.-Kramnik, V., Wijk-aan-Zee, 1999) The practice also saw here 21. Re3 Qg5.
21... Qg5 22. Rb3 Qg6+
22... c5! looked stronger, because after 23. Qxb7 Qg6+ 24. Ka1 Black would have a very strong reply 24... Qc2!, and it is impossible 25. Rxc2? in view of 25... Rd1+ with the mate.
23. Ka1 Qg5
Black has already missed the proper moment for c6-c5. Here 23... c5 would be met with 24. Ne5.
24. Qe3 Qb5
Black doesn't want to swap the Queens without any necessity or profit.
25. Qc3 c5 26. Ra3 Qd7 27. Qf3 Qe7 28. Re3
Perhaps Black was going to prepare the advance of his e-Pawn, and White is trying to prevent this idea.
28... b5!
White has prevented the break in he center but missed the blow at the Q-side.
29. axb6 axb6 30. Na3
Not 30. Nxb6?? because of 30... Qa7+.
30... Rd2
Black ought to properly use the profits of his position. In addition to the invasion to the second rank he could have prepared the advance 31…e5 with 30…Nd5!? (for instance, after 31.Rd3 or 31.Re4). Perhaps, Black has taken the wrong decision refused from the e-Pawn advance intended three moves ago.
31. g3 Qd7 32. h4 Qd4 33. Rec3 Qe5
After 33... Qd5 White needn't swap the queens on d5 and can propose the Queens swap with 34. Bc4 in more favourable situation.
34. Bb5 Rh2 35. Nc4 Qc7
This is the full confession. Black was prohibited to play 35... Qd5? Because of 36. Qxd5 exd5 37. Nxb6 Rb8 38. Rxc5, and the weakness of the last rank would be decisive.
36. Kb1 Rd5 37. Ra3 h5 38. Qe4
38. Rf1 was also possible. After 38... Kh7 (38... f6 is weaker because of 39. Ra8 Rd8 Kh7 40. Qe4 as well as 38... Rf5 in view of 39. Qa8 Kh7 40. Rxf5) 39. Ne3 (if 39. Qe4 g6 40. Nxb6, then 40... Rf5 would be unpleasant) 39... Qe5 40. Rc3 Rdd2 41. Nc4 Black would have the amazing 41... Rde2!, and taking Black's Queen would lead to the perpetual check.
38... g6 39. Ne3 Rdd2 40. Nc4 Rd4 41. Qa8 Kg7 42. Qa7
White is playing win. If he liked he could have forced the draw by 42. Ra7 Qxg3 43. Rxf7 Kxf7 44. Qe8 Kg7 (44... Kf6?? 45. Qf8#) 45. Qe7+ Kh6 46. Qf8+ with the perpetual check.
42... Qxa7 43. Rxa7 Rg2 44. Ra3
White is defending while he could have attacked by 44. Ne5!? To make Black's Rook to transfer to defense with 44... Rf2.
44... Nd3 45. Rf1
45... Nxb2
There was no need in playing for combinations. After 45... f5!? His position would have been just more pleasant.
46. Ne3
46. Nxb2 is answered with 46... Rb4, but 46. Ne5! looked stronger. After 46... Rd1+ (46... Rb4 doesn't work in view of 47. Kc1! Rxb5 48. Ra7) 47. Rxd1 Nxd1 48.Nc4 White would be OK.
46... Rxg3 47. Ra7?
White commits a blunder and misses the five Pawns for the piece. After 47. Kxb2 Rb4 48. Kc2 Rxb5 49. Nf5 (49.Ra7!? is also possible with a draw) exf5 50. Rxg3 he could have gained the Rook for the same price.
47... Rxh4 48.Raxf7 Kh6 49. R7f3
Perhaps White should have played 49. Kxb2 Rxe3 50. Be8 to try to hit the Pawn g6.
49... Rxf3 50. Rxf3 Rb4 51. Be8 Nd3+ 52. Ka2
White is not able even to move his King into the center: 52. Kc2? Ne1+.
52... Nf4 53. Nc2 Re4 54. Bc6 Nd5 55. Kb3 h4 56.Bb5 Kg5 57. Bd3 Rf4 58. Rh3 Kf6 59. Ne1 b5 60. Kc2
Black's Pawns at the Q-side have started. White must not play 60. Bxb5 because of 60... Rb4. The armada of Black's pawns should inevitably decide the game in his favour.
60... c4 61. Be2 g5 62. Rh2 e5 63. Kd2 b4 64. Kc1 c3 65. Nd3 Rd4 66. Nc5 Nf4 67. Bf3 Kf5 68. Bb7 e4 69. Nb3 Rd8 70. Kc2 e3 71. Ba6 h3 72. Rh1 g4.
White resigned.
Round 10.
Round 10 has given gave rise to the greatest sensation of the tournament. The leader, A. Shirov as white has lost to S. Movsesian. In that game Shirov obtained the initiative for the Pawn, but used his opportunities not in the best way and was defeated. G. Kasparov who had been half a point behind exploited the slip of the leader and in excellent style beaten as White Kir. Geprgiev in Sicilian Defense. In the two games rare nowadays Evans Gambit was played. However, neither A. Morozevich against E. Bacrot, nor N.Short against M.Adams succeeded anything but the draw with the seldom beginning. E.Bareev against V.Topalov were playing almost up to bare kings on board. White managed to get an extra Pawn, but Black in his turn possessed the two Bishops as a good compensation. Black brought the game to the ending where he was able to retain the balance even being two Pawns down. The game of I. Sokolov vs. M. Gurevich was rather short and appeared to be not interesting. Up to move 18 the opponents had been repeating the game of Ivanov S. vs. Chepukaitis G. (St. Petersburg, 2000). But I.Sokolov has not ventured to take the exchange, and the play soon became equal
Shirov A. - Movsesian S. [B85]
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e6 6. Be2 a6 7. O-O Nf6 8. Be3 Be7 9. f4 d6
The play has come to Scheweningen variation of Sicilian Defense with the moves transposition.
10. Qe1 O-O 11. Qg3 Nxd4 12. Bxd4 b5 13. a3 Bb7 14. Kh1 Bc6 15. Rae1 Qb7
This is the main line in this variation. The Spanish grandmaster also played against 15... Rae8. After 16. e5 dxe5 17. Bxe5 Qd7 18. Bd3 g6 19. Qh3 Nh5 20. Ne4 f6 21. Bc3 Bd5 Black retained the position (Shirov A. - Portisch L., Biel, izt, 1993).
16. Bd3 b4 17. Nd1
The line17. axb4 Qxb4 18. Ne2 was also tried many times. The game of Shirov A. vs. Ivanchuk V. (Linares 1993) was one of the examples.
17... bxa3
After 17... g6 18. Nf2 (bad is 18. axb4? because of 18... Nxe4) 18... bxa3 19. bxa3 Nh5 20. Qe3 Nxf4 21. Qxf4 e5 22. Ng4 White has developed the strong attack upon Black's King (Shirov A. - Benjamin J., Horgen, 1994).
18. bxa3 Rac8
The other move 18... Rad8 led to the complicated play with the mutual chances after 19. c3 g6 20. Nf2 Nh5 21. Qe3 f6 (Shirov A. - Kabatianski A., Germany, 1996)
19. Nf2
After 19. Ne3 Bxe4 20. Bxf6 Bxf6 21. Ng4 Bxd3 22. Nxf6+ Kh8 23. Rb1 Qe7 24. Qxd3 Qxf6 25. Qxd6 Rfd8 26. Qxa6 Rxc2 (Lautier J. - Movsesian S., Malmoe, 1999) White came into the problems.
19... Nh5 20. Qf3 g6
20... Nxf4!? Looks more natural, since after 21. Qxf4 e5 Black is absolutely OK.
21. Ng4 f6
22. f5
White starts the direct attack of Black's King and is ready to pay with the Paw n for it.
22... exf5
After 22... e5 23. Be3 White would get the advantage.
23. Nh6+ Kh8 24. Nxf5
White is destroying the pawn shelter of Black's King. In case of 24. Qe2?! Bxe4 25. Bxa6 Qc6 26. Bxc8 Rxc8 Black would stay not bad in spite of the exchange down, since the Knight is misplaced on h6.
24... gxf5 25. Qxh5 fxe4 26. Qg5 Rf7
26... exd3 is prohibited. After 27. Rxe7 Qxe7 28. Rxf6 White would win thanks to the opened check.
27. Bc4 Rg8
27... d5 does not work in view of 28. Bxa6! Qxa6 29. Rxf6 Bxf6 30. Bxf6 Rxf6 31. Qxf6 Kg8 32. Re3 and White would create the mating attack.
28. Qe3 d5 29. Bb3 Qd7 30. Rf4
After the immediate 30. c4 Rg6 (in case of 30... dxc4 31. Bxc4 Bd5 32. Bxd5 Qxd5 33. Rf4 White would retain the advantage) 31. Rd1 Qe6 32. cxd5 Bxd5 33. Bxd5 Qxd5 Black would keep the balance.
30... Rg4 31. Rf2 Kg8 32. c4 Qe6
Perhaps, 32... f5 is stronger, although after 33. Ref1 White would possess the compensation for the sacrificed Pawn.
33. cxd5?!
White takes off the tension in the center without any particular profit for him. Better was 33. Qh3 Rfg7 (after 33... f5 34. cxd5 Bxd5 35. Rxf5 Qxf5 36. Bxd5 Rf4 black could also play) 34. Bxf6 Bxf6 35. cxd5 Bxd5 36. Bxd5 (Black would be OK in case of 36. Ref1 R7g6 37. Bxd5 Qxd5 38. Rxf6 Rxf6 39. Qxg4+ Kf7) 36... Qxd5 37. Rxf6 h5 Black is inferior, but has not to lose the game.
33... Bxd5 34. Bd1 Rg5 35. h4?
This move is just the weakening of White's position. After 35. Rb2 у White would still have the compensation for the Pawn.
35... Rgg7 36. Bb2 Bd6 37. Rd2
In case of 37. Bh5 Rf8 38. Qh6 Be5 Black would have to win gradually, but after the move in the game he may win by force.
37... Rg3! 38. Bf3
If 38. Qd4, then 38... Rh3 39. Kg1 (or 39. gxh3 Qxh3 40. Kg1 Rg7, and Black wins) 39... Bh2 40. Kf1 (40. Kf2 Qf5) 40... Bc4 with the win for Black.
38... Rxf3
38... Rfg7 would also bring the easy win.
39. Qxf3
39. gxf3 would be met by 39... Qh3 40. Kg1 Rg7.
39... exf3 40. Rxe6 Bxe6 0-1
White resigned.
Round 11.
The last round has settled everything properly. G.Kasparov has defeated S. Movsesian in the sharp and fascinating game and guaranteed himself the first place with 8,5 points of 11. His nearest pursuers A. Shirov and M. Adams were trying hard to do their best in the last round. A. Shirov played as Black with E.Bacrot and tried rather a seldom beginning for such kind of a tournament - Budapest Gambit to fight only for win. That game came to the sharp position with the different-sided castles in which Black has started the attack against White's King with 19…c6. Shirov has carried out that attack on the full wind and won a victory. M. Adams as White against A. Morozevich continued their beginning dispute in one of the lines in French Defense. That dispute was started at the tournament in Wijk-aan-Zee in January 2000. Up to Black's move 11 the opponents had been repeating the game of Almasi Z. - Timman J. (Pamplona, 2000). A. Morozevich was the first to decline, but he was not able to reach the full equality. White has got the extra pawn, brought his Knights to the shelter of Black's King and crushed it in a couple of moves. So, A. Shirov and M. Adams shared the second and the third places and appeared two points ahead the other participants. Near the finish of the tournament the Bulgarian grandmaster Kir. Georgiev finally missed his play. Playing as White against E.Bareev he ran across the crushing attack and lost the fourth game successively. V.Topalov and the Bosnian grandmaster I. Sokolov were playing the Queen Gambit and gradually swapping pieces after pieces till the game came to the draw. The same result has been fixed in the game of M. Gurevich vs. N. Short. The latter is the only participant who has no wins in the tournament.
Movsesian S. - Kasparov G. [B80]
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6
Black is going to the path of Scheveningen Variation. In Round 8 against A.Shirov G.Kasparov chose another move - 6... Ng4.
7. f3
With his last move White supports the Pawn e4 and intends to throw away the Knight f6 from his important defending position with the advance g2-g4-g5. There is one more sharp line - 7.g4 frequently and successfully tried by A. Shirov.
7... b5 8. Qd2
This natural move permits black without any problem to develop his pieces at the proper positions. The immediate 8. g4 is tougher. The idea of this move is to prevent the transfer of the Knight b8 onto b6 at this moment. The two month before, the game Anand V. - Kasparov G. (Kopavogur, active, 2000) saw 8... Nfd7 9. Qd2 Nb6 10. a4 with the complicated position with the mutual chances. It is a sort of a riddle, what Black would do after 10. O-O-O. Let us add that after 10…Bb7 11. Nb3! Nc6 12. Qf2 (Bologan V. - Akopian V., Stratton Mountain, 1999) White managed to get the advantage.
8... Nbd7 9. O-O-O Bb7 10. g4 Nb6 11. Qf2
Taking his Queen from d2 White himself provokes the typical "Sicilian" exchange sacrifice on c3.
11... Nfd7 12. Kb1 Rc8 13. Bd3
13... Rxc3!
With this exchange sacrifice Black annihilates one of the defenders of the White King, demolishes its pawn shelter and - what is also important - simplifies realizing the advance of d6-d5 since White's control over the center will become less after the sacrifice.
14. bxc3 Qc7 15. Ne2 Be7 16. g5 O-O 17. h4 Na4
This is the improvement. The game Zagrebelny S. - Lingnau C. (Berlin, 1993) saw here immediate 17... d5, but after 18. h5 dxe4 19. Bxe4 Bxe4 20. fxe4 White's light-coloured Bishop entered the play and Black had to pay for it with a more active piece.
18. Bc1
In case of 18. h5 Black would probably react, as in the game 18…Ne5 since it would have been wrong to part with the Knight after such its long route just to win the Pawn.
18... Ne5 19. h5
After 19. f4 Black would prepare 19... Nxd3 20. cxd3 and there - a very strong move 20... d5.
19... d5
This is the proper move to include into the play the idle dark-coloured Bishop.
20. Qh2
In case 20. exd5 Bxd5 White's light-coloured Bishop will not enter the play since 21.Be4 would be met with 21…Bc4.
20... Bd6 21. Qh3 Nxd3
Black is going to prepare b5-b4. After the immediate 21... b4 Black would have to take into consideration 22. exd5 Nxd3 23. Rxd3.
22. cxd3
22... b4!
Black is disclosing the files at the Q-side where White's King is hidden.
23. cxb4
This move opens the new ways for Black's pieces, but after 23. c4 dxc4 24. g6 Be5 25. h6 cxd3 26. Rxd3 Rc8 (in case of 26... Qc4 Black should have to consider 27. gxf7 and if è 27... Rxf7, then 28. Rd8+) 27. gxh7 (after 27. gxf7 Kxf7 28. Rd2 Nc3 29.Nxc3 bxc3 30. Rc2 Qb6 31. Ka1 g6 Black would carry out the killing transfer Bb7-c6-a4) 27... Kh8 28. Rd2 (in case 28. hxg7 Bxg7 29.Rd2 b3! 30. axb3 Qe5 31. Nd4 Nc3 Black would win at once) 28... g6 Black's attack would bring him a success.
23... Rc8 24. Ka1 dxe4
24... Bxb4 with the idea of 25…Bc3 was also possible.
25. fxe4 Bxe4 26. g6
26. dxe4 is not allowed in view of 26... Be5 27. Nd4 Bxd4 28. Rxd4Qxc1 29. Rxc1 Rxc1#.
26... Bxh1 27. Qxh1 Bxb4 28. gxf7 Kf8 29. Qg2
After 29. Bb2 Nxb2 30. Rc1 (there is no 30.Kxb2 because of 30... Qc2) 30... Bc5 31. d4 (or 31. Kxb2 Qe5) 31... Nd3 32. Rc2 Qxf7 33. dxc5 Qf6 34. Nc3 Nxc5 Black would win.
29... Rb8 30. Bb2
If 30. Bd2, then even 30…Bxd2 31. Rxd2 Qa5 32. Rd1 Qb4 would be sufficient for the win.
30... Nxb2 31. Nd4 Nxd1 32. Nxe6 Kxf7 (0-1)
White resigned. After 33. Qxg7 Kxe6 34. Qxc7 Bc3 Black wins.
