Showing posts with label Smyslov. Show all posts
Showing posts with label Smyslov. Show all posts

Sunday, 10 January 2021

Garry Kasparov's Forgotten Weapon Against The Queen's Gambit (part 13)

Vasily Smyslov (2600) - Kasparov (2710)
Candidates Final, Game 12 (Vilnius, USSR) 1984
1.d4 d5 2.Nf3 c5 3.c4 e6 4.cxd5 exd5 5.g3 Nf6 6.Bg2 Be7 7.0-0 0-0 8.Nc3 Nc6 9.Bg5 cxd4 10.Nxd4 h6 11.Be3 Re8 12.a3 Be6 13.Nxe6!?
Smyslov is again the first to vary. White gets the bishop-pair, but strengthens d5.
13...fxe6 14.Qa4 Rc8 15.Rad1!?
It might be thought this rook would go to c1, and the king's rook to d1, but Smyslov plans to attack the black centre by f4-f5 and so wants the king's rook on the f file.
15...Kh8 16.Kh1 a6 17.f4 Na5 18.f5 b5!?
The c4 square will be occupied later. My main analysis engines Stockfish12 and Komodo11.01 reckon White is slightly better after 18...Nc4 19.Bc1 Qd6 20.fxe6 b5 21.Qb3.
19.Qh4 Ng8
The engines reckon 19...Nc4?! 20.Bxh6+ Nh7 (20...gxh6? is worse, eg 21.Qxh6+ Kg8 22.Qg6+ Kh8 23.fxe6 with a winning attack) 21.Bxg7+!? Kxg7 22.Qg4+ Kh8 23.fxe6 is good for White, who gets three pawns and attacking chances for a knight.
20.Qh3
The engines prefer 20.Qg4!?
20...Nc4 21.Bc1 Bg5 22.fxe6 Bxc1 23.Rxc1 Ne3 24.Nxd5!
Offering the exchange is the only way to get equal chances, according to the engines.
24...Nxf1 25.Rxf1 Rf8 26.Nf4
A usually reliable rule-of-thumb is that the side the exchange down should avoid trading rooks, but here the engines reckon 26.Rxf8!? Qxf8 27.Bf3 is at least as good as the text.
Position after 27.Bf3
26...Ne7 27.Qg4?
Correct, according to the engines, is 27.Qh5, which prevents Black's next.
27...g5 28.Qh3 Rf6 29.Nd3 Rxf1+ 30.Bxf1 Kg7
Position after 30...Kg7
The difference in the two diagrams is that Black's knight and queen have gained activity while White's knight and bishop have fallen back. This turns a drawn position into one winning for Black, according to the engines.
31.Qg4 Qd5+ 32.e4
Not 32.Bg2?? Rc1+ 33.Nxc1 Qd1+ 34.Bf1 Qxf1#.
If 32.Kg1?! then 32...Rc4 33.Qh3 (otherwise Black picks up the e6 pawn with ease) Qd4+ 34.Kh1 Qe4+ 35.Kg1 Qe3+ 36.Kh1 Re4 and the e6 pawn still falls.
32...Qd4 33.h4 Rf8 34.Be2 Qe3 35.Kg2 Ng6 36.h5?!
Possibly better, but also losing, is the engines' 36.e7 Re8 37.hxg5 hxg5, after which White cannot save the e7 pawn.
36...Ne7 37.b4 Kh7 38.Kh2
White's other pieces cannot move without losing material.
38...Rd8 39.e5
Or 39.Nc5 Rd2 etc.
39...Rxd3 40.Bxd3+ Qxd3 0-1

Saturday, 9 January 2021

Garry Kasparov's Forgotten Weapon Against The Queen's Gambit (part 12)

KASPAROV won with white in game nine of his Candidates final against Vasily Smyslov, meaning he led 3-0, with six draws, when game 10 began.
Smyslov (2600) - Kasparov (2710)
Candidates Final, Game 10 (Vilnius, USSR) 1984
1.d4 d5 2.Nf3 c5 3.c4 e6 4.cxd5 exd5 5.g3 Nf6 6.Bg2 Be7 7.0-0 0-0 8.Nc3 Nc6 9.Bg5 cxd4 10.Nxd4 h6 11.Be3 Re8 12.a3 Be6 13.Kh1 Bg4 14.f3 Bh5 15.Nxc6!?
Smyslov varies from 15.Bg1 of game eight.
15..bxc6 16.Na4
As usual in the Tarrasch, White's capture on c6 radically changes the play. Instead of targeting the d5 pawn, White now targets the c6 pawn and the c5 square, the latter becoming an outpost for white pieces.
16...Qc8!?
Taking control of the c8-h3 diagonal before it can be occupied by White's light-square bishop. That in turn suggests White could have played 16.Bh3?!, but then Black has a pleasant choice between 16...Bxa3 and 16...c5.
17.Bd4 Qe6
Supporting c6 from a flank, pressurising e2 and freeing c8 for possible occupation by a black rook.
18.Rc1 Nd7 19.Rc3 Bf6 20.e3 Bg6
Thanks to a rook being on c3, White can meet 20...Bxd4 with 21.Qxd4 or 21.exd4.
21.Kg1!?
It is surprising, at least at first glance, that Smyslov can find nothing better than bringing the king closer to the centre. An obvious plan is to double on the c file by 21.Qc1, or 21.Qd2 with Rfc1 to come. But Smyslov presumably decided there is little to be gained thereby as long as a black bishop covers c2.
21...Be7 22.Qd2 Rab8 23.Re1
As an anonymous ChessBase annotator points out, 23.Bxa7 does not win a pawn, viz 23...Ra8 24.Nc5 Qd6 25.Nxd7 Rxa7 26.Nc5 Bf6 27.Rcc1 Qe5, when Black is getting his pawn back and has excellent play.
23...a5 24.Bf1 h5 25.Rec1
25.Bd3?! Bxd3 26.Qxd3 h4 leaves the white king's position looking draughty.
25...Ne5!? 26.Bxe5 Qxe5 27.Rxc6 Bf6 28.R6c5
Not 28.R6c3? d4 29.exd4? Qxd4+ 30.Qxd4 Bxd4+.
But Stockfish12 and Komodo11.01 reckon the position is an example where greed is good and that White should hang on to his extra pawn with 28.Kf2!?, although they believe Black has sufficient compensation.
28...Qxe3+ 29.Qxe3 Rxe3 30.Rxd5 Rxf3 31.Be2 Re3 32.Bxh5
White re-establishes his pawn advantage and gets rid of the black bishop-pair, but after ...
32...Bxh5 33.Rxh5 g5!
... White's pieces are uncoordinated.
34.Nc3!?
34.Rc2 Kg7 35.g4? runs into 35...Re4.
Counterplay with 34.Rc5!? Re2 35.Rxa5 divides the engines. Stockfish12 reckons 35...Rd8 36.Kf1 Rc2 37.Ke1 Kg7 wins for Black, but Komodo11.01 is less sure.
34...Rd8!?
After 34...Rxb2 35.Nd5 Bd4! 36.Rxg5+ Kh7 37.Kh1 Rxa3 Black seems a little better thanks to having bishop-v-knight on an open board with rival passed pawns.
35.Rc2 Kg7 36.Kg2?!
Presumably played with the idea of g4 and Rh3, but this is easily foiled, so 36.Kf2 is probably better.
36...Kg6 37.g4 Rd4 38.h3 ½–½
The final position - should Kasparov have played on, or was Smyslov better?
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Maybe the match situation influenced Kasparov's decision, as Black seems better. One likely continuation given by the engines goes 38...Rdd3 39.Ne2 a4 40.Nc1 Rd1 41.Ne2 Rb3 42.Nc3 Bxc3 43.bxc3 Rd3 44.h4 gxh4 45.Rxh4 Rxa3, when Black has got his pawn back and is better coordinated. However, this is a long line and there are many alternatives along the way.

Friday, 8 January 2021

Garry Kasparov's Forgotten Weapon Against The Queen's Gambit (part 11)

KASPAROV, in games four and six of his Candidates final against Vasily Smyslov, was happy to defend the black side of an Orthodox Queen's Gambit Declined.
In both those games Smyslov played Nf3 on move two, ruling out an Exchange Variation with Nge2.
By the time Kasparov had black again, he was leading the match 2-0 with five draws.
Smyslov (2600) - Kasparov (2710)
Candidates Final, Game 8 (Vilnius, USSR) 1984
1.d4 d5 2.Nf3 c5!? 3.c4
This is the most-popular continuation in ChessBase's 2021 Mega database. Attempting to refute 2...c5!? with 3.dxc5!? is not very popular. The main line runs 3...e6 4.e4!? Bxc5 5.exd5 exd5 6.Bb5!? Nc6 7.0-0 Ne7 8.Nbd2!?, reaching a position in Mega21 where it is normally White to move. Black is fine.
3...e6 4.cxd5 exd5 5.g3 Nf6 6.Bg2 Be7 7.0-0 0-0 8.Nc3 Nc6 9.Bg5
How should Black proceed from this Tarrasch tabiya?
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9...cxd4
This is the main move, but Stockfish12 prefers 9...c4 (Komodo11.01 disagrees), when the main line continues 10.Ne5 Be6 11.Nxc6 (the engines prefer 11.f4!?) bxc6 12.b3 Qa5!? 13.Na4 Rfd8 14.e3 with a position the engines reckon slightly favours White, but there are plenty of promising alternatives for both sides along the way.
10.Nxd4 h6 11.Be3 Re8 12.a3
Korchnoi's novelty - used by Smyslov in the drawn game-two of this match.
12...Be6 13.Kh1 Bg4!?
In game two of the match Kasparov played 13...Qd7. A club player who chose the text might be criticised for losing one (at least) tempo, but Kasparov's idea, I believe, is to inhibit f4.
14.f3
Not 14.f4? Bxa3!
White can also hit the bishop with 14.h3, when if, as in the game, 14...Bh5, White has 15.Nf5, eg 15...Bf8 16.g4!? Bg6 17.Nxd5 Bxf5 18.gxf5 Nxd5 19.Qxd5 Qf6, when the engines reckon Black does not have quite enough compensation for a pawn.
14...Bh5 15.Bg1 Qd7 16.Qa4 Bc5 17.Rad1
If 17.Nxc6 then 17...Bxg1.
17...Bb6 18.Rfe1 Bg6 19.Qb5
The natural follow-up to 14.f3 is to get in e4, but it may be too early here, eg 19.e4!? dxe4 20.Nxc6 Qxc6 21.Qxc6 bxc6 22.fxe4 can be met by 22...Ng4!, when the knight gets a fine blockading square at e5.
19...Rad8 20.e3!?
Now both white bishops are obstructed by white pawns. The engines prefer 20.Na4 Bxd4 21.Bxd4 with what they reckon is an equal position.
20...Qd6 21.Nce2?!
The engines prefer 21.Bf2 and if, as in the game, 21...Ne5, then 22.Na4, when 22...Bxd4 23.exd4 Nc4 24.Rxe8+ Rxe8 25.Bf1 is level according to Komodo11.01, although Stockfish12 prefers Black.
21...Ne5 22.Qb3!?
Smyslov had presumably intended 22.Nf4, after which the engines give 23...Bh7 24.Qb3 Ba5 25.Re2 g5!? 26.Nh3 Nc6!?, when they reckon Black has the upper hand.
22...Ba5 23.Nc3 Nd3 24.Re2 Nc5 25.Qa2 Bxc3 26.bxc3 Qa6?!
This seems to give away much of Black's advantage. The engines prefer 26...Bd3 27.Red2 Bc4.
27.Red2 Na4
It is too late to redeploy the bishop, ie 27...Bd3?? 28.Rxd3 Nxd3 29.Bf1.
28.Qb3 ½–½
Stockfish12 reckons Black is much better after 28...Nb6!? 29.Bf1 Nc4 30.Bxc4 dxc4 31.Qb2 Nd7 (intending ...Ne5), but Komodo11.01 gives Black only a slight edge.

Thursday, 7 January 2021

Garry Kasparov's Forgotten Weapon Against The Queen's Gambit (part 10)

KASPAROV faced former world champion Vasily Smyslov in the final of the Candidates in Vilnius, then part of the USSR but now the capital of Lithuania.
Smyslov (2600) - Kasparov (2710)
Candidates Final Game 2 (Vilnius) 1984
1.d4 d5 2.Nf3 c5!? 3.c4 e6 4.cxd5 exd5 5.g3 Nf6 6.Bg2 Be7 7.0-0 0-0 8.Nc3 Nc6
Once again we reach the starting tabiya of the Tarrasch Defence, albeit from a slightly unusual move-order.
9.Bg5 cxd4 10.Nxd4 h6 11.Be3 Re8 12.a3!?
As played by Korchnoi against Kasparov in the semi-finals.
12...Be6 13.Kh1!?
Smyslov's new idea (Korchnoi played 13.Qb3). The plan is probably to expand on the kingside with f4 and, after moving the dark-square bishop, e4. Also possible, again after moving the dark-square bishop, is f3 to support the push e4.
13...Qd7!?
Kasparov switched to 13...Bg4 in later games. The text is a general developing move while also envisaging a possible exchange of light-square bishops with ...Bh3, but Smyslov immediately puts a stop to the latter idea.
14.Nxe6 fxe6 15.f4 Red8!?
A surprising redeployment that is quite liked by Komodo11.01. More natural-looking is 15...Rad8, but Kasparov is saving this rook for the open c file.
16.Bg1 Rac8 17.Qa4 Kh8 18.Rad1 Qe8 19.e4 d4! 20.Ne2
Not 20.Bxd4? b5! 21.Nxb5 Nxd4 22.Rxd4 Rxd4 23.Qxd4 Qxb5, when Black has won a knight for two pawns.
20...Bc5 21.Qb5 Bb6 22.h3 e5 23.fxe5 Nxe5 24.Qxe8+ Rxe8 25.Nxd4
Who stands better and by how much?
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White is a pawn up and has the bishop-pair, but the e pawn is weak and the b2 pawn even weaker. Komodo11.01 and Stockfish12 reckon White has a slight edge.
25...Nc4 26.e5!?
White has no good way to defend b2 (26.Rd1?? Nd2) and instead offers his isolani in order to activate his light-square bishop and possibly create a queenside pawn-majority.
26...Rxe5 27.Bxb7 Rc7
The problem for White is he still has no good way to protect b2.
28.Rc1 Nxb2 29.Rxc7 Bxc7 30.Nc6 Re2 31.Nd4
If 31.Nxa7 then 31...Bxg3.
31...Re5 32.Nf5 Bb6 33.Nxh6! Ra5 34.Bxb6 axb6 35.Nf5
35.Rf3 defends the a pawn temporarily, but Black can reply 35...Nc4.
35...Rxa3
The tactical flurry is over, and it is Black who has emerged with the only queenside pawn. But White has the only bishop in a position with rival pawn-majorities, and the engines reckon the ending is equal.
36.Kh2 Nc4 37.g4 Ra7 38.Bh1 Ne5 39.g5 Nh5 40.Re1 Ra5 41.Nd6 ½–½

Friday, 11 September 2020

Champion Of Champions (part 14)

HERE is the updated tournament bracket after the first semi-final.

Round of 16               Quarter-Finals          Semi-Finals                      Final
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)
                                    v................................Tal
8.Tal (+8.5)
v----------------------------Tal (+79.5)
9.Petrosian
                                                                      v.....................................Botvinnik
6. Botvinnik (+66)
v----------------------------Botvinnik (+18.5)
11. Fischer
                                    v.................................Botvinnik (+406.5)
13. Kasparov
v----------------------------Alekhine
4. Alekhine (+21.5)

3. Capablanca
v----------------------------Kramnik (+118)
14. Kramnik (+12)
                                     v................................Kramnik
5. Euwe
v----------------------------Karpov
12. Karpov (+11.5)
                                                                       v.....................................
7. Smyslov (+18)
v----------------------------Smyslov (+11.5)
10. Spassky
                                     v................................Smyslov
15. Anand
v----------------------------Lasker
2. Lasker (+50.5)

Semi-Finals
Match Two: Kramnik v Smyslov
Game One
Vladimir Kramnik - Vasily Smyslov
Bogo-Indian
1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+
There are 41 examples of Smyslov playing the Bogo-Indian in ChessBase's 2020 Mega database, compared with 40 for the Queen's Indian: 3...b6.
4.Bd2
Five examples of Kramnik playing this compared with four for 4.Nbd2.
4...a5
This is as far as we can go as Kramnik has not faced 4...a5 in Mega20
The analysis engines Stockfish11 and Komodo11.01 give White an averaged advantage of +47.5

Game Two
Vasily Smyslov - Vladimir Kramnik
Spanish Berlin
1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.0-0 Nxe4 5.Re1 Nd6 6.Nxe5 Be7
We have reached exactly the same position as in game one of the quarter-final Smyslov - Lasker, which had to be called here as Smyslov did not face 6...Be7
White's advantage in this position, according to the averaged evaluations of Stockfish11 and Komodo11.01, is 34.5 - not enough for Smyslov to overturn Kramnik's score in the first game of this semi-final.
Here is the updated tournament bracket.

Round of 16               Quarter-Finals          Semi-Finals                      Final
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)
                                    v................................Tal
8.Tal (+8.5)
v----------------------------Tal (+79.5)
9.Petrosian
                                                                      v.....................................Botvinnik
6. Botvinnik (+66)
v----------------------------Botvinnik (+18.5)
11. Fischer
                                    v.................................Botvinnik (+406.5)
13. Kasparov
v----------------------------Alekhine
4. Alekhine (+21.5)

3. Capablanca
v----------------------------Kramnik (+118)
14. Kramnik (+12)
                                     v................................Kramnik (+13)
5. Euwe
v----------------------------Karpov
12. Karpov (+11.5)
                                                                       v.....................................Kramnik
7. Smyslov (+18)
v----------------------------Smyslov (+11.5)
10. Spassky
                                     v................................Smyslov
15. Anand
v----------------------------Lasker
2. Lasker (+50.5)

Wednesday, 9 September 2020

Champion Of Champions (part 12)

HERE is the tournament bracket after three quarter-finals.

Round of 16               Quarter-Finals          Semi-Finals
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)
                                    v................................Tal
8.Tal (+8.5)
v----------------------------Tal (+79.5)
9.Petrosian

6. Botvinnik (+66)
v----------------------------Botvinnik (+18.5)
11. Fischer
                                    v.................................Botvinnik
13. Kasparov
v----------------------------Alekhine
4. Alekhine (+21.5)

3. Capablanca
v----------------------------Kramnik (+118)
14. Kramnik (+12)
                                     v................................Kramnik
5. Euwe
v----------------------------Karpov
12. Karpov (+11.5)

7. Smyslov (+18)
v----------------------------Smyslov
10. Spassky
                                     v................................
15. Anand
v----------------------------Lasker
2. Lasker (+50.5)

Quarter-Finals
Match Four: Smyslov v Lasker
Game One
Vasily Smyslov - Emanuel Lasker
Spanish Berlin
1.e4
As noted before, 1.e4 was played in 454 of the games in ChessBase's 2020 Mega database in which Smyslov had white, compared with 425 games for 1.d4.
1...e5 2.Nf3 Nc6 3.Bb5 Nf6 4.0-0 Nxe4 5.Re1
Very modern!
5...Nd6 6.Nxe5 Be7
Smyslov did not face 5...Be7, so this is as far as we can get
The analysis engines Stockfish11 and Komodo11.01 give White an averaged advantage of +34.5.

Game Two
Emanual Lasker - Vasily Smyslov
Spanish Closed
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4
Lasker played the text almost three times as frequently as the move often associated with him, 3.Bxc6.
4...Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.c3 d6 9.d4!?
Lasker played this four times, compared with two for 9.h3.
9...Bg4 10.Be3 exd4 11.cxd4 Na5 12.Bc2 c5
Smyslov played the text and 12...Nc4 twice each, scoring a win and a loss with the latter but a win and a draw with 12...c5, which is therefore chosen on tiebreak.
As far as we can go - Lasker did not face 12...c5
The engines give Lasker an averaged advantage of +23 - not enough to overcome Smyslov's score from game one.
Here is the updated tournament bracket.

Round of 16               Quarter-Finals          Semi-Finals
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)
                                    v................................Tal
8.Tal (+8.5)
v----------------------------Tal (+79.5)
9.Petrosian

6. Botvinnik (+66)
v----------------------------Botvinnik (+18.5)
11. Fischer
                                    v.................................Botvinnik
13. Kasparov
v----------------------------Alekhine
4. Alekhine (+21.5)

3. Capablanca
v----------------------------Kramnik (+118)
14. Kramnik (+12)
                                     v................................Kramnik
5. Euwe
v----------------------------Karpov
12. Karpov (+11.5)

7. Smyslov (+18)
v----------------------------Smyslov (+11.5)
10. Spassky
                                     v................................Smyslov
15. Anand
v----------------------------Lasker
2. Lasker (+50.5)

So the semi-finals can be thought of as an all-Soviet affair, although Kramnik might argue with that description.

Friday, 4 September 2020

Champion Of Champions (part seven)

HERE is the tournament bracket after six matches.

Round of 16               Quarter-Finals
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)

8.Tal (+8.5)
v----------------------------Tal
9.Petrosian

6. Botvinnik (+66)
v----------------------------Botvinnik
11. Fischer

13. Kasparov
v----------------------------Alekhine
4. Alekhine (+21.5)

3. Capablanca
v----------------------------Kramnik
14. Kramnik (+12)

5. Euwe
v----------------------------Karpov
12. Karpov (+11.5)

7. Smyslov
v--------------------------
10. Spassky

15. Anand
v--------------------------
2. Lasker

Round of 16
Match Seven: Smyslov v Spassky
Game One
Vasily Smyslov - Boris Spassky
Spanish Closed
1.e4
Preferred by Smyslov over 1.d4 in ChessBase's 2020 Mega database by 454 games to 425.
1...e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7
Spassky did not highly rate the Open Variation: 5...Nxe4.
6.Re1 b5 7.Bb3 d6 8.c3 0-0 9.h3 Nb8
As far as we can get as Smyslov, somewhat surprisingly, did not face Breyer's System
Stockfish11 and Komodo11.01 give Smyslov an averaged advantage of +57, which will be hard to overturn.

Game Two
Boris Spassky - Vasily Smyslov
Spanish Closed
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0
Another heavyweight Spanish, and this time Black leaves open the possibility of playing the Marshall Attack ...
8.c3 d6
... but there are no Smyslov games with 8...d5.
9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Nc6 13.d5 Nd8 14.Nf1
Spassky reached the position after 13...Nd8 three times as White, winning with the text but drawing with 14.a4 and 14.c4, so the text is chosen on tiebreak. It turns out not to have been faced by Symslov.
The deepest into a 'game' we have reached in the tournament before running out of played moves for one champion
The engines give Spassky an averaged advantage of +39 - good, but not enough to overturn Smyslov's advantage from game one.
Here is the updated bracket after seven matches.

Round of 16               Quarter-Finals
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)

8.Tal (+8.5)
v----------------------------Tal
9.Petrosian

6. Botvinnik (+66)
v----------------------------Botvinnik
11. Fischer

13. Kasparov
v----------------------------Alekhine
4. Alekhine (+21.5)

3. Capablanca
v----------------------------Kramnik
14. Kramnik (+12)

5. Euwe
v----------------------------Karpov
12. Karpov (+11.5)

7. Smyslov (+18)
v----------------------------Smyslov
10. Spassky

15. Anand
v--------------------------
2. Lasker

Friday, 17 July 2020

Champion Repertoire (part seven)

VASILY Smyslov tied a world championship match 12-12 against Botvinnik in 1954, beat him 12.5-9.5 in 1957 and lost the title back to Botvinnik the following year 10.5-12.5.
Although Smyslov was 'only' world champion for a year, his score in the three matches against Botvinnik was +18=34-17, a close-run mini-precedent for the Karpov-Kasparov marathon of 1984-90.
A repertoire based on Smyslov's games emphasises positional play.
White
Smyslov played 1.e4 and 1.d4 almost equally often, scoring 64% with both moves in ChessBase's 2020 Mega database.
But add in the games in which he began 1.c4, but quickly transposed to a 1.d4 opening, and you get a preponderance of closed games over open ones.
So start with 1.c4, with which Smyslov scored 72%, but if Black replies 1...Nf6 follow up with 2.d4. Most of his games continued 2...e6, with Smyslov generally avoiding the Nimzo-Indian in favour of 3.Nf3.
He liked to meet the Queen's Indian: 3...b6 with the counter-fianchetto 4.g3. In the mainline 4...Bb7 5.Bg2 Be7 6.0-0 0-0 7.Nc3 Ne4 he normally played the somewhat unusual 8.Nxe4!? Bxe4 9.Ne1 Bxg2 10.Nxg2, a line that English readers may not be surprised to learn became a favourite of grandmaster Keith Arkell. Against 4...Ba6 Smyslov scored 60% with 5.b3, meeting 5...Bb4+ with 6.Bd2.
He only met the Bogo-Indian: 3...Bb4+ three times, always playing 4.Bd2.
In the Queen's Gambit Declined: 3...d5 he scored 58% with 4.Nc3 but a much-more impressive 70% by making it a Catalan: 4.g3. In the latter he met 4...dxc4 with 5.Qa4+. But the main line in his games, reached by various move-orders, went 4...Be7 5.Bg2 0-0 6.0-0 dxc4, against which he always played 7.Qc2, scoring 69%, rising to 80% in the main line 7...a6 8.a4.
When Black kept the position closed with 6...c6 he scored 80% with 7.Qc2, rising to 100% when he met the main move 7...Nbd2 with 8.b3.
Against the Grünfeld: 2...g6 3.Nc3 d5 Smyslov generally continued 4.Nf3 Bg2 5.Qb3 (he also liked 5.cxd5 but did not score so well with it), meeting the main line 5...dxc4 6.Qxc4 0-0 with 7.e4. If Black kept the position closed with 5...c6, Smyslov continued 6.cxd5 Nxd5 (he did not face 6...cxd5, at least in Mega20) 7.e4.
Against the King's Indian: 3...Bg7 Smyslov scored 79% with 4.e4, rising to 88% when he met 4...d6 with 5.Nf3 0-0 6.Be2. If Black continued with the main move 6...e5, Smyslov's score rose to an amazing 94% with 7.d5.
Against 2...c5 Smyslov generally switched back to English lines with 3.Nf3 cxd4 4.Nxd4. He also reached this position from the English Symmetrical move-order 1.c4 c5 2.Nf3 Nf6 3.d4 exd4 4.Nxd4. He did not face the modern favourite 4...e5, Smyslov's opponents almost invariably continuing 4...e6 or 4...Nc6. Smyslov was happy to reach the same position against both moves, ie by 4...e6 5.Nc3 Nc6 or 4...Nc6 5.Nc3 e6. He then scored 90% by continuing 6.g3. If in the 4...e6 line Black met 5.Nc3 with 5...Bb4, Smyslov generally played 6.Bd2.
After 1.c4 g6 Smyslov scored 73% with 2.d4, the games almost always transposing to lines covered above.
After 1.c4 e6 he overwhelmingly preferred an immediate fianchetto with 2.g3, aiming for lines covered above. If Black went for a Dutch formation with 2...f5, Smyslov usually held off playing d4, instead going for a set-up involving Bg2, Nf3, 0-0 and b3, albeit from a small sample size.
However, against an immediate Dutch set-up, 1.c4 f5, Smyslov was happy to continue with 2.d4 and 3.Nc3, albeit again from a small sample size.
Black v 1.e4
Smyslov was happy to go down the mainline Closed Spanish: 1...e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3, feinting at, but never playing, a Marshall Attack with 7...0-0 8.c3 d6 (8...d5 would be a Marshall Attack9.h3. There are more than 35,000 games with this position in Mega20. Smyslov generally continued down the main line with 9...Na5 10.Bc2 Qc7 11.d4 Qc7 12.Nbd2, but here varied his play, scoring best (64%) with 12...Bd7 (see below for Smyslov using this system to score an important win at the 1953 Interzonal).
Clearly White has many deviations along the way. Important ones include the Modern Exchange: 4.Bxc6 dxc6 5.0-0, against which Smyslov scored 60% with 5...f6 6.d4 Bg4 7.dxe5 Qxd1 8.Rxd1 Bxf3 9.gxf3 fxe5.
Against the Anti-Marshall: 8.a4 he always pushed past with 8...b4.
If White omitted 9.h3 in the main line, Smyslov scored 62% with 9...Bg4.
Against the Italian Game: 3.Bc4 Smyslov scored 80% with 3...Bc5, rising to 83% when he met 4.c3 with a closed system starting with 4...Qe7.
He also liked ...Bc5 against the Scotch: 3.d4 exd4 4.Nxd4, but against the Scotch Gambit: 4.Bc4 he continued 4...Nf6.
In the Scotch Four Knights: 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 he went down the main line with 5...Bb4 6.Nxc6 bxc6 7.Bd3 d5  8.exd5 cxd5 9.0-0 0-0 10.Bg5 but then generally continued 10...Be6.
In the Spanish Four Knights: 4.Bb5 he usually continued 4...Bb4 5.0-0 0-0, and after 6.d3 he won the two times he played the conventional 6...d6 but drew in the two games he played the less-popular 6...Bxc3.
Against the Vienna: 2.Nc3 Nf6 with both 3.f4 and 3.g3 he played 3...d5.
Against the Bishop's Opening: 2.Bc4 he scored 60% with 2...Nf6, and he declined both times he faced the King's Gambit: 2.f4, drawing with 2...d5 and winning with 2...Bc5.
Black v 1.d4 and Others
Smyslov usually aimed for a Nimzo-Indian: 1...Nf6 2.c4 e6 3.Nc3 Bb4, scoring 62% when he met 4.e3 with 4...0-0. Against the main continuation 5.Bd3 he liked 5...c5, with most games continuing, as they still do, 6.Nf3 d5 7.0-0. Smyslov usually proceeded 7...dxc4, scoring 64% when he met 8.Bxc4 with the unusual 8...Qe7!? Against 5.Nge2, which is popular at club level because it avoids doubled c pawns, Smyslov scored 67% with 5...d5 6.a3 Be7.
Smyslov varied against 4.Qc2 but most common was the unusual, although it has been played by Carlsen, 4...d6. The main reply is 5.Nf3, which Smyslov twice met with 5...0-0 and twice with 5...Nbd7, scoring a win and a draw with each move.
Against 4.a3 Bxc3+ 5.bxc3 he scored 67% with 5...c5, and against 4.Nf3 he scored 60% with 4...b6.
He met 4.f3 with 4...d5, and 4.Bg5 with 4...h6 5.Bh4 c5.
Smyslov played both the Queen's Indian: 3...b6 and the Bogo-Indian: 3...Bb4+ against 3.Nf3, scoring much better with the latter.
After 3...Bb4+ 4.Bd2 he scored 64% with 4...a5.
Against 4.Nbd2 he usually played 4...c5 5.a3 Bxd2+.
Against 4.Nc3 he scored 60% with 4...b6.
After 1.d4 Nf6 2.Nf3 Smyslov scored 85% with 2...g6, generally meeting 3.c4 Bg7 4.Nc3 with 4...d5. This requires learning a lot about the Grünfeld, although some time is saved as the Grünfeld is part of the white repertoire presented here. However a more-practical approach for club players might be to play 2...e6, with which Smyslov scored a very respectable - to say the least - 72%. Virtually all Smyslov's opponents continued 3.c4, after which 3...Bb4+ is a Bogo-Indian.
He faced the Veresov: 2.Nc3 d5 3.Bg5 three times, scoring a win and two draws with 3...Nbd7.
Smyslov varied against the English: 1.c4 but scored best (72%) with his favourite reply 1...e5.
The commonest continuation was 2.Nc3 Nf6 3.Nf3 Nc6 4.g3, whereupon he scored 62% with 4...Bb4.
Against 2.g3, which today is very popular at club level, Smyslov scored 67% with 2...f5 3.Bg2 Nf6 4.Nc3 Bb4
The move 2.Nf3 always transposed to 2.Nc3 lines by 2...Nc6 3.Nc3.
Against 1.Nf3 Smyslov generally played 1...Nf6, when 2.d4 can be met by 2...e6 or 2...g6 depending on your choice in the move-order 1.d4 Nf6 2.Nf3. If White transposed to an English with 2.c4, Smyslov usually replied 2...b6, aiming for a Queen's Indian set-up. If White continued 2.g3, Smyslov scored 67% with 2...d5 3.Bg2 c6 4.0-0 Bf5.

Here is Smyslov using his pet system in the Spanish.
Zdravko Milev - Smyslov
Interzonal (Bucharest) 1953
Spanish Closed
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 d6 8.c3 0-0
Smyslov usually reversed Black's last two moves.
9.h3 Na5 10.Bb3 c5 11.d4 Qc7 12.Nbd2
Considering how massively popular this position became, it is perhaps surprising that its first appearance in Mega20 is in a 1905 game.
12...Bd7
The main line continues 12...cxd4 13.cxd4 Nc6 14.Nb3 a5 15.Be3 a4 16.Nbd2 Bd7, which occurs 777 times in Mega20, with White scoring 58%.
13.Nf1 Rfe8!?
Smyslov scored two wins and two draws with this move. Black has major alternatives in 13...cxd4, 13...Nc4 and 13...Rac8.
14.dxe5
Ľubomír Ftáčnik in Mega20 likes 14.b3!?
14...dxe5 15.Nh2
More popular today is 15.Ne3 but the text had appeared in two previous Smyslov games.
15...Rad8 16.Qf3 Be6 17.Ne3
The previous year, in round eight of the USSR Championship, Smyslov lost to Vasily Byvshev after 17.Ng4 Nxg4 18.Nxg4 h6!? 19.Ne3 Bg5 20.Nd5 Bxd5 21.Bxg5 hxg5, when Black was perhaps a little weak on the light squares (1-0, 64 moves).
Smyslov must have had an improvement in mind - perhaps 18...Nc4 or 18...Nc6 instead of the somewhat weakening 18...h6!? - as six rounds later he was happy to again reach the position after 16...Be6 (but more about that after the diagram).
17...Nc4 18.Nf5!?
It was probably safer to swop off the aggressively placed black knight,
18..Bxf5 19.exf5 e4!?
How should White proceed?
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20.Qe2
This seems best.
In round 14 of the 1952 USSR Championship the game Lev Aronin - Smyslov went 20.Bxe4?! Ne5 21.Qg3 Bd6 22.f4 c4 23.Nf3 Nxf3+ 24.Bxf3 when the analysis engines Stockfish11 and Komodo11.01 reckon Black gets a winning attack with 24...Bc5+ 25.Kh2 Qb6 26.Re2 (Black threatened 26...Bf2) Rxe2 27.Bxe2 h5. The game saw 24...Rxe1+ 25.Qxe1 Bxf4 26.Bxf4 Qxf4 27.Rd1 Re8?! (the engines much prefer 27...Rxd1 28.Qxd1 h6) 28.Qf2 Qxf5, when Black had won a pawn but White got very active with 29.Bc6 Qxf2+ 30.Kxf2 Rb8 31.Rd6 (½–½, 55 moves).
20...Bd6 21.Ng4 Nd5 22.f6?!
Ftáčnik points out that 22.Bxe4? (my punctuation) is more-or-less refuted by 22...h5 as White's attack following 23.Nh6+ gxh6 24.Qxh5 runs into 24...Nf6 25.Qxh6 Nxe4. However the engines reckon 22.Bb3 keeps Black's advantage to a minimum.
22...h5 23.Ne3 Ndxe3 24.Bxe3 Nxe3 25.fxe3 g6 26.a4 c4!
As Ftáčnik explains, the text highlights the weakness of f6 and makes it very difficult for White to activate his bishop.
27.axb5 axb5 28.Rad1 Qc5 29.Rf1 Qg5 30.Rd4?
White had to keep the black queen out of g3, either by the engines' 30.Qe1 or Ftáčnik's 30.Qf2.
30...Qg3 31.Rxe4
The consistent follow-up to Black's last move, but Smyslov has seen his way through to victory.
31...Qh2+ 32.Kf2 Bg3+ 33.Kf3 Be5 34.Qf2 Re6 35.Rxe5!?
Desperation, but White's game cannot be saved, eg 35.Kf2 Rxf6 36.Qg1 Qxg1 37.Rxg1 Bg3 38.Rf1 Rxf1 39.Kxf1 Rd2.
35...Qxe5 36.Ke2 Red6 0-1

Saturday, 1 February 2020

My Best Ever Tournament (part six)

Spanton (2096) - Thorsten Cmiel (2260)
Lausanne Round 6
Sicilian Irregular/English Symmetrical
1.e4 c5 2.c4!?
Sticking with the system I lost with in the previous round, but I felt the loss had little or nothing to do with the opening.
2...g6 3.Ne2 Nc6 4.d4 Bg7!?
4...cxd4 is much more popular.
5.d5 Nd4 6.Nxd4
Vladimir Georgiev (2555) played 6.Nbc3!? in a win over a 2365 in a Danish open eight years ago, but I would be very surprised if the text is not better.
6...cxd4
Vasily Smyslov's choice in a 1962 draw with Ludek Pachman.
7.Bd3 e5?!
Smyslov preferred 5...d6. The problem with the text is it creates a lever for a white kingside attack.
8.0-0 d6 9.f4 exf4?!
From my original notes: "Helping White's development, weakening Black's pawns and making room for White to play e5 cannot be right."
Jan Timman once lost an Olympiad game as White after his Argentine opponent here played 9...f6. The analysis engines Stockfish10 and Komodo10 like 9...Nh6!?, which was played by an unrated in 1986.
10.Bxf4 Nf6 11.e5
Even stronger may be 11.Qa4+, going after the d6 pawn.
11...Nh5 12.exd6?!
Almost certainly better is 12.Qf3, one point being 12...dxe5 can be met by 13.Bxe5. So instead Black should probably play 12...Nxf4 13.Qxf4 0-0, when 14.exd6 transposes to the game, as does 12...0-0 13.exd6 Nxf4 14.Qxf4.
12...0-0?!
Probably better was 12...Nxf4 (however, Komodo10 only comes to prefer this after being shown it on the board) 13.Qe1+ Ne6 14.dxe6 Bxe6 15.Qg3 with a roughly level position.
13.Qf3 Nxf4 14.Qxf4 Qb6!?
The engines slightly prefer the more cautious (read: passive, if Black goes on to lose) 14...Qe8.
How should White proceed?
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15.Nd2!
15.b3 Bf5 gives Black a small edge, according to the engines.
15...Qxb2
The engines approve, but now White gets a strong attack.
16.Rab1
16.Rfb1?! hands the initiative to Black after 16...Qc3.
16...Qa3
This is better than 16...Qxa2 17.Ra1 Qb2 18.Ne4, according to the engines. My original notes have Frtiz5's recommendation of 17.d7?! Bxd7 18.Rb7, which Frtiz5 reckoned was slightly better for White, but the modern engines rate it as level. Note that here 16...Qc3 is well-met by 17.Rf3 or 17.Rb3.
17.Rb3 Qa5
If 17...Qxa2, the engines reckon White is much better after 18.c5, eg 18...Qa5 19.Rc1 b6 (best, according to the engines) 20.c6! Qxd5 21.Rb5 Qe6 22.Nf3 (22.Ne4!?) with strong play despite being two pawns down.
18.Rb5?!
My notes show I was hoping for 18...Qd8? 19.c5, which is indeed strong for White. However, the engines come to very much prefer 18.d7!? Bxd7 19.Rxb7 with an initiative.
18...Qa3
18...Qxa2!? 19.Rbb1!? leaves White with more than enough compensation for his pawn deficit, according to Stockfish10, but Komodo10 reckons the position is balanced.
19.Rb3 Qa5
Clearly TC was ready to acquiesce to a draw.
20.Ne4!?
Komodo10's second choice (behind 20.d7!?, as in the note at White's move 18).
20...Qxa2
Correct, according to the modern engines.
Fritz5 reckoned 20...f5 21.Ng5 b6 22.Qh4 h6 23.Ne6 Bxe6 24.dxe6 Qe5 is equal, but Stockfish10 and Komodo10 continue 25.e7 Rfe8 26.c5! bxc5 27.Bc4+ Kh7 28.Qg3! Qxg3 29.Rxg3 Be5 30.Bf7 Bxd6 (or 30...Bxg3 31.Bxe8 Bxd6 32.Bc6) 31.Bxg6+ Kh8 32.Bxe8, when Black has a pawn for the exchange but little hope of saving a half-point. This is a long line, but much of it is forced.
21.Rbb1 b6?!
This stop's White central attack beginning with 22.c5, but now White gets time for a kingside attack. The engines reckon White's advantage is smaller after 21...Bf5!? 22.Rxb7.
22.Nf6+ Bxf6
Not 22...Kh8? 23.d7, eg 23...Bb7 24.Rf3 etc.
23.Qxf6 Qa3?!
This could have worked out well for Black, but objectively better is the engines' 23...Bd7 24.Rbe1 Qd2, although White is well on top after the simple 25.Qxd4.
24.Bxg6?
I originally gave this an exclamation mark, even though my engines at the time thought it loses.
Today's engines reckon the calm 24.Rf3 is much better, eg 24...Qa2 25.h3 (this is more about preventing …Bg4 rather than creating a bolthole for the white king, I believe) Qd2 26.Qe7.
24...hxg6 25.Rf4 Bh3?
Stockfish10 and Komodo10 reckon 25...Bg4! 26.Rxg4 Qe3+ leaves White the equivalent of just half-a-pawn or so better. Probably coming to the same thing is 25...Qe3+ 26.Kh1 Bg4, but then White has the extra option of 27.Rbf1!?
26.Rh4 Qe3+ 27.Kh1 Bxg2+ 28.Kxg2 1-0

Monday, 8 July 2019

Scotch Drubbing

Simon Wilks (2065) - Spanton (1900)
South Wales International Round Three
Scotch Opening
1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Nb3
This was very much the mainline, at least at club level, before Kasparov revitalised 5.Be3 and 5.Nxc6.
5...Bb6
5...Bb4+!?, a favourite of former European junior champion Oleg Romanishin, scores best in ChessBase's 2019 Mega database.
6.Nc3 Nf6 7.Bg5
More popular is 7.Qe2, but both moves have been played by Carlsen.
7...h6 8.Bh4 g5?!
This has been played by some strong players, and is second in popularity to 8...d6, but it is very committal. The problem for Black is not just that the move to all intents and purposes rules out kingside castling, but it creates numerous weaknesses, especially the squares f5 and f6.
9.Bg3 d6 10.Qe2!?
Not liked by my main analysis engines, Stockfish10 and Komodo9, who prefer 10.Qd2, 10.h4 or 10.Bb5.
10...Be6
Played with my (faulty) next move in mind. The mainline runs 10...Qe7 11.0-0-0 Bd7 12.f3 with a position clearly better for White (Stockfish10) or equal (Komodo9).
11.0-0-0 Bxb3?!
Smyslov, and everyone else in Mega19 who reached this position, played 11...Qe7. I rejected it because of 12.Nd5 Bxd5 13.cxd5 Qxe2 14.Bxe2, when White has the bishop-pair, as in the game, but without doubled b pawns. However, this was wrong thinking on at least two counts: a) the doubled pawns are not weak, b) with queens off, Black is not in danger of being mated, and his kingside weaknesses are not so exploitable. Nevertheless, the text is for a time the second choice of both engines..
12.axb3 Qe7 13.f3 Nh5?
I get to chase White's pieces around with my knight but, as SW pointed out in the postmortem, nothing much is accomplished by this, not least because White's dark-square bishop is not doing much anyway, at least in the short-medium term. Probably best was 13...0-0-0.
14.Bf2
Even better, it seems, was 14.Nd5! I thought it was bad because of 14...Nxg3, but the engines point out the simple 15.hxg3, when Black has a major headache over where to put his queen. 15...Qe5 makes it a target for White's pawns, while 15...Qe6 is met by 16.Qe1! (allowing White's bishop access to c4, and at the same time covering g3). Even worse is 15...Qd8? as Black's king gets trapped in the middle of the board, while 15...Qd7?? loses instantly to 16.Nf6+.
14...Nf4 15.Qd2 Bxf2 16.Qxf2 0-0-0
Who, if anyone, stands better, and why?
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I was quite pleased at having got rid of White's bishop-pair, leaving him with a bishop that is semi-bad. But actually this position is very good for White - my f4 knight will be driven back, his knight will occupy a great post at d5, and his bishop will have plenty of scope, either at b5 or at g2, in either case with latent pressure against Black's queenside.
17.g3 Ne6 18.Nd5 Qf8 19.b4 Kb8 20.Bg2 Qg7
Just four moves have passed between the two diagrams, but White's position has dramatically improved just as Black's has clearly worsened
21.c3
Somewhat cautious. I was more worried about 21.Rd3, which is Stockfish10's choice, while Komodo9's 21.f4 also looks strong.
21...Rhf8?
I never get to play ...f5, so the text just wastes time. An obvious try was 21...Ne5, which turns out to be the engines' choice, but White can ignore the move, if he wants, and complete development with 22.Rhe1, the point being that 22...Nc4 would just be a pretty gesture, rather like …Nh5-f4, as the knight cannot stay on c4 after 23.Bf1 or 23.Qe2.
22.Qc2 Ne5 23.Rhe1 g4?
A mistake - the result of wanting to "do something." More sensible was the calmer 23...h5, when White remains better, but the game continues.
24.f4 Nf3!?
Giving up a pawn to get rid of White's soon-to-be-powerful bishop. Not much better, if at all (Stockfish10 prefers my move, at least for a while), is the retreat 24...Nd7, when White has gained space and can slowly ratchet up the pressure on Black's queenside.
25.Bxf3 gxf3 26.Qf2 Qg4?
The pawn cannot be held, so this is pointless, but it is hard to come up with any active plan for Black.
27.Ne3
I now collapsed horribly. The remaining moves were:
27...Qh5? 28.Rd5 Qh3 29.Qxf3 c6?? 30.Rh5 1-0