Showing posts with label Andrew Soltis. Show all posts
Showing posts with label Andrew Soltis. Show all posts

Monday, 29 March 2021

Alexander Alekhine's Forgotten Weapon Against The Italian Game (part three)

After 1.e4 e5 2.Nf3 Nc6 3.Bc4 d6 4.c3, the main point of playing 4...Bg4 is to put pressure on the centre that White is building.
However, as Andrew Soltis points out in Winning With The Giuoco Piano And The Max Lange Attack (Chess Digest 1992), White can immediately play d4 anyway.
Miguel Najdorf - Izak Aloni
Polish Championship (Jurata) 1937
1.e4 e5 2.Nf3 Nc6 3.Bc4 d6 4.c3 Bg4 5.d4
The actual move-order of the game was 1.e4 e5 2.Nf3 Nc6 3.Bc4 d6 4.d4 Bg4 5.c3.
How should Black proceed?
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5...Bxf3!?
Most popular in ChessBase's 2021 Mega database is 5...Nf6, but 6.Qb3 seems a good reply.
Soltis implies that Black's best is to strongpoint e5 with 5...Qe7, when Grigory Levenfish - Alexander Tolush, USSR Championship (Leningrad) 1939, continued 6.Be3 Nf6 7.Qb3 Nd8 (Stockfish12 and Komodo11.01 prefer the sharp 7...0-0-0!?) 8.Nbd2 g6 9.dxe5, after which "White has the usual advantage in space," although Tolush won the game. Black could grab a pawn with 6...exd4!? 7.cxd4 Qxe4, but Soltis says 8.Nc3 Qg6 9.Nb5 gives "more than enough compensation."
Interesting is Mikhail Tal's 5...Qd7!?, after which White's score drops below 50%. The engines want White to gain space with d5!?, either immediately or over the next few moves, but in practice the usual continuation has been 6.Be3 Nf6 7.Nbd2, when the engines reckon 7...exd4 gives Black at least equality.
All these lines need further testing - the Semi-Italian is not seen often enough to give definite verdicts in most lines.
6.gxf3
Also possible is 6.Qxf3 as White then has a double-attack on f7. Viacheslav Ragozin - Alexander Ilyin-Zhenevsky, USSR Championship Semi-Final (Leningrad) 1936, saw 6...Qf6 7.Qd3 exd4 8.Bb5!? Qg6!? 9.0-0, when Ilyin-Zhenevsky grabbed a pawn with 9...dxc3?! and came under a very strong attack (but ½–½, 41 moves). The engines reckon ....Nge7, at move nine or, even better, at move eight, is more solid.
6...exd4 7.cxd4 Qf6 8.Be3 g6 9.Nc3 Nge7 10.Qa4!?
Komodo11.01's choice. Stockfish12 prefers 10.h4.
10...Qxf3!?
A brave decision. The engines approve, but much prefer White.
11.Rg1 0-0-0?
Castling into it, but White also has lots of play after the engines' 11...Kd8!? or 11...Bg7.
12.d5 Ne5 13.Be2 Qf6 14.Qxa7 Nf3+ 15.Kd1!
This is better than preserving the rook with 15.Bxf3, according to the engines.
15...Nxg1 16.Bb5 Qf3+ 17.Kd2 c6 18.dxc6 Nxc6 19.Qa8+ Kc7 20.Nd5+ Kd7 21.Qxb7+ Ke6 22.Nf4+ Ke6 23.Qxc6
White has a pawn and the bishop-pair for the exchange, but the complications are not over.
23...Bh6 24.Be2
Good enough, but the engines give a mating line: 24.Qc3+ Ke7 25.Qc7+ Kf6 26.Bd4+ Kg5 27.Qe7+ Kxf4 28.Rxg1, when Black can only delay, but not prevent, checkmate by giving up his queen.
24...Qxf4 25.Bxf4 Bxf4+ 26.Kd3?!
It was probably time to concentrate on king safety. The engines reckon White is still winning after 26.Ke1.
26...Nh3 27.Bf3?
The defensive 27.Rf1!? is best, according to the engines.
27...Rc8 28.Qa4 Be5
Black's king is suddenly looking the safer.
29.Rb1 Ra8 30.Qd7 Nf4+ 31.Ke3 Rxa2 32.Bd1 Rb8 33.b4 Ne6 34.Kf3?
34.Bb3, which was surely the point of 32.Bd1, is equal, according to the engines.
34...Bd4 35.Bb3 Rxf2+ 36.Kg3 Rxb4 37.e5+ dxe5?
37...Kg7 wins.
38.h4?
38.Bxe6 Rxb1 39.Qxf7+ Kg5 40.Qe7+ Kh6 41.Qh4+ etc draws.
38...Kg7
Now the king is safe, and Black has a winning advantage.
39.h5 Rd2 40.h6+
Najdorf tries to conjure up a perpetual, but there is none.
40...Kxh6 41.Rh1+ Kg7 42.Rxh7+ Kxh7 43.Qxf7+ Kh6 0-1

Wednesday, 22 January 2020

Lasker's Spanish Inquisition (part nine) - THE Game

NOW we come to one of the most famous games in chess history, about which more nonsense has been written than probably any other encounter.
Lasker - Capablanca, St Petersburg Finals Round 7, is famous despite being very much short of the fireworks that mark out most celebrated games.
As the story is usually told, Capablanca was running away with the tournament and only needed to draw against Lasker to virtually guarantee first place.

Lasker, as usual, began quite slowly and, with just four rounds to go, he was trailing a full point behind Capablanca, whom he was desperately trying to catch. His last chance to fight for tournament victory was to beat the leader - Garry Kasparov, ChessBase's Mega database.

The young Cuban, who was confidently leading the tournament, needed only not to lose with Black against the current world champion in order to claim overall tournament victory - Vladimir Tukmakov in Modern Chess Preparation, New In Chess 2012.

Capablanca wanted a draw, because he was Black and because a half point would virtually clinch first prize, Réti said - Andrew Soltis in Why Lasker Matters, Batsford 2005.

What Réti actually wrote was: In Capablanca's remarkably cautious playing in this game it is easy to see that, owing to his favourable standing in the tournament, he has determined to play only for a draw - Masters Of The Chessboard, Dover 1976 reprint of the first English edition of 1932.

There is much more along these lines on the internet, where people seem prone to confuse Capablanca's standing at the start of the finals, where he was 1.5pts ahead of Lasker from the preliminary rounds, with his position when the two met in the finals with four rounds to go.
The truth is that when Lasker played Capablanca in this famous game, they were joint-first on 11pts.
However, it is fair to say Capablanca was still favoured by many to win the tournament.
The reason has to do with the unusual format at St Petersburg.
It began in the preliminaries with 11 players, the favourites being generally acknowledged as the world champion (Lasker), the fast-rising Capablanca, and Akiba Rubinstein, arguably the strongest player never to have played for the world title.
Five players would qualify for the finals, but they were not to include Rubinstein. Instead they consisted of Capablanca (unbeaten on 8pts), Lasker and Tarrasch (6.5pts), and Alekhine and Marshall (6pts).
Whether these famous five were dubbed grandmasters by Tsar Nicholas II is extremely doubtful, but at any event they would compete in a double-round-robin, bringing forward their scores from the preliminaries.
Because there were five players in the finals, one in every round was given a no-point bye.
By the time they reached round seven, where Lasker had the white pieces against Capablanca, the latter had already had his two byes, while the world champion was due one in the following round.
This meant that after their game, Capablanca had three more games (White against Tarrasch, Black against Marshall and White against Alekhine). Lasker had just two more games (Black against Tarrasch and White against Marshall).
I am sure I will not be spoiling it for anyone by stating that Lasker beat Capablanca. This gave him 12pts to the Cuban's 11pts.
The next day, in round eight, while Lasker sat it out, Capablanca went down to Tarrasch, remaining a point behind Lasker, and now having played an equal number of games.
But the drama was not over. In round nine, Lasker was held to a draw by Tarrasch, while Capablanca beat Marshall, setting up a dramatic last round.
Capablanca duly beat Alekhine to reach 13pts, but Lasker also despatched Marshall, winning the tournament with 13.5pts.
Here is the game about which so much has been written.
Lasker - Capablanca
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6
Kasparov: "(!) A very surprising choice. The Exchange Variation of the Ruy Lopez was a dangerous weapon in Lasker's hands. But nobody in the audience and amongst the participants believed that this quiet opening would work against Capablanca, whose excellent technique was already widely recognised. With the charming self-confidence of youth, José Raoul unfortunately shared this misconception and did not recognise Lasker's real intentions."
Soltis: "Tarrasch said that when the game was adjourned for a meal break, he asked Lasker why he chose 4.Bxc6. Lasker replied that he had studied Tarrasch's new idea in the Open Defence and couldn't find an improvement for White. Lasker feared that Capablanca would use the same opening. But this sounds like another Lasker smokescreen. Capablanca never played the Open Defence in his career, and Lasker often played the Exchange Variation without a special reason."
4...dxc6 5.d4 exd4 6.Qxd4 Qxd4 7.Nxd4
Kasparov: "Now even the queens are off the board. Is this the way to play for a win in the decisive game?"
Lasker in Lasker's Manual Of Chess (Dover 1960 reprint of the original 1947 David McKay Company edition): "Black must not refuse this simplification, otherwise he loses too much space."
7...Bd6
Capablanca in Chess Fundamentals (Bell 1973 reset reprint of original 1921 edition): "Black's idea is to castle on the kingside. His reason is that the king ought to remain on the weaker side to oppose later the advance of White's pawns."
Réti: "The bishop is very well-posted here. That is, if White succeeds in exchanging it, in order to deprive the second player of the weapon furnished by the two bishops, then, after the pawn recaptures on d6, Black's pawn-position will also be improved."
8.Nc3 Ne7 9.0-0
Reinfeld & Fine in Lasker's Greatest Games 1889-1914 (Dover 1965 reprint of the original 1935 The Black Knight Press edition entitled Dr. Lasker's Chess Career, Part I: 1889-1914): "Unusual but good: the king is to support the advance of the kingside pawns."
I played the more popular 9.Be3, and later castled queenside, in a win over a junior rated 1744/150 at Hastings 2019-20, but as I noted in part three of this series, Lasker generally kept his king on the kingside in 5.d4 lines of the Spanish Exchange, although often preferring long-castling if he had played 5.Nc3.
9...0-0
Reinfeld & Fine: "Also unusual, but this time less good. Black should castle queenside in order to guard his weak pawns."
Réti: "In a later game, Schlechter played at this point against [me] the much better move ...Bd7, combined with queenside castling [Vienna Trebitsch Memorial 1914, 0-1 39 moves]."
The text is the most-popular move, from a small sample, in ChessBase's Mega20, and was played four years ago by 2509-rated Nikita Petrov in a draw against Yuri Korsunsky (2411).
10.f4
Capablanca: "This move I considered weak at the time, and I do still. It leaves the e pawn weak, unless it advances to e5, and it also makes possible for Black to pin the knight by ...Bc5."
Reinfeld & Fine: "Having the majority of pawns on the kingside, Lasker immediately sets out to utilise this advantage."
10...Re8
Capablanca: "Best. It threatens ...Bc5, Be3 Nd5. It also prevents Be3 because of ...Nd5 or ...Nf5."
Reinfeld & Fine: "Superior to the text was 10...f5 11.e5 Bc5 12.Be3 Bxd4! 13.Bxd4 b6 [Korunsky - Petrov, EU-Cup Novi Sad 2016, saw 13...Rfd8 14.Bf2 Ng6, with Black later successfully blockading White's passer] 14.Rad1 c5 15.Be3 Be6, and in view of the bishops of opposite colour and Black's initiative on the queenside, the position is about even."
Soltis gives the text an exclamation mark, stating that it "threatens to seize an edge with 11...Bc5 12.Be3 Nd5!"
Réti: "A more vigorous move would be ...Bc5, which Lasker prevents with his following move, which is excellent."
Kasparov: "Later Dr Tarrasch suggested a better line: 10...f5 11.e5 Bc5 12.Be3 Bxd4 13.Bxd4 b6, and despite White's strong passed pawn, Black has enough defensive resources. So strong was the impression of Lasker's original plan that the commentators tried to improve Black's play at the earliest possible stage! But Capablanca was right in his assessment: Black had little to worry about."
For what it is worth, Stockfish10 and Komodo10 agree with Capablanca and Soltis.
11.Nb3 f6
Lasker (commenting generally on ...f6 in the Spanish Exchange rather than on this exact position): "The move ...f6, ordinarily weak becomes very effective after the exchange of the hostile king's bishop. This observation is due to Steinitz. Bernstein has applied it happily in recommending against 5.Nc3 the defence 5...f6 in this Exchange Variation."
Réti: "An absolutely unnecessary defensive move, for White's e5 would be of advantage only to Black, since he would have the points d5 and f5 free for his pieces."
Soltis: "Before this game, the move ...f6 was considered good for Black in the Exchange Variation, 'even necessary' said [Russian master Samuil] Vainshtein. After the game, annotators dismissed ...f6 as questionable because 'it makes [the move] f5 stronger'. We [have] got so much smarter over the years that when ...f6 is played, it's taken for granted that f5 will be strong."
Reinfeld & Fine: "Preventing e5 but weakening e6. Preferable was 11...Be6 and if 12.e5 [then] 12...Bb4 with good chances."
Capablanca: "Preparatory to ...b6, followed by ...c5 and ...Bb7 in conjunction with ...Ng6, which would put White in great difficulties to meet the combined attack against the two centre pawns."
White to make his famous 12th move
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12.f5!?
Kasparov awards this an exclamation mark, stating: "Under the classical rules of the Steinitz positional school this move has to be damned. White gets a weak pawn on e4, Black a stronghold on e5, with a devaluation of White's pawn-advantage on the kingside -- too many negative points for just one move. But Lasker's eagle eye had seen much further."
Capablanca: "It has been wrongly claimed that this wins the game, but I would like nothing better than to have such a position again. It required several mistakes on my part finally to obtain a lost position."
Tukmakov awards an exclamation mark, with the laconic note: "12.Be3 Nd5!"
Reinfeld & Fine also give an exclamation mark, stating: "A surprising and courageous move which gives White a definite advantage. The move creates a hole for Black's pieces at e5, but it helps White in three ways: 1) it fixes Black's f pawn, enabling White to undertake a kingside attack with g4-g5; 2) it contains Black's queen's bishop; 3) it will later enable White to plant a knight at e6. The fact that Lasker was able to carry out every one of these objectives, shows that Capablanca did not properly grasp the essentials of the position."
Soltis: "Tarrasch had ridiculed f5 when it occurred in a similar position … but Tarrasch's knee-jerk classicism had been proven wrong when Lasker won [against Salwe five years earlier at St Petersburg 1909] and the f5 idea had worked reasonably well in other previous games."
Réti: "A surprising move. On closer examination, however, it is perceived that … apparent disadvantages go hand in hand with less apparent but actually more important advantages."
12...b6
Kasparov: "12...Bd7 13.Bf4 Rad8 was recommended by stern post-mortem analysts. But obviously the bishop is better placed on b7, where it attacks the pawn on e4."
Reinfeld & Fine: "A wiser continuation was 12...Bd7 and if 13.Bf4 [then] 13...Bxf4 14.Rxf4 Rad8 15.Rd1 Bc8 and White will find it difficult to press home his advantage."
Soltis: "From this point on the annotators looked for a way to save Black's position - a remarkable admission of the strength of 12.f5."
Réti: "Because Capablanca hits on the unfortunate idea of withdrawing his queen's bishop from the defence of the point e6, that point becomes much weaker than e5 is for White. The simplest alternative is probably the development ...Bd7, combined with ...Rad8."
Tukmakov gives 12...Bd7 13.Bf4 Rad8 without comment.
13.Bf4 Bb7
Kasparov gives this move a question mark, commenting: "Now a serious mistake! In general Black should be happy to undouble his c-pawns, but here the pawn on d6 will become a permanent weakness."
Capablanca: "Played against my better judgment. The right move of course was 13...Bxf4."
Soltis also awards a question mark, saying Capablanca's suggestion has been "analysed well into a minor-piece ending."
Réti says Black was "absolutely forced to exchange."
14.Bxd6
Reinfeld & Fine: "Good: now Black has a new weakness at d6."
Soltis gives the move an exclamation mark, stating: "White makes the d pawn the board's only real target."
14...cxd6 15.Nd4
Capablanca: "It is a curious but true fact that I did not see this move when I played 13...Bb7."
15...Rad8
Capablanca: "The game is yet far from lost, as against the entry of the knight, Black can later on play ...c5, followed by ...d5."
Kasparov gives the move a question mark, stating: "Capablanca doesn't take White's plan seriously. The knight on e6 will be a bone in the throat. So 15...Bc8 was obligatory. Maybe the Cuban was too proud to recognise his mistake so soon."
Reinfeld & Fine also award a question mark: "After this he will never be able to drive White's knight from e6."
Soltis says White's advantage is not great after 15...Bc8 "but it is enough to play for a win."
16.Ne6 Rd7 17.Rad1
Capablanca: "I now was on the point of playing ...c5, to be followed by ...d5, which I thought would give me a draw, but suddenly I became ambitious and thought I could play 17...Nc8 and later on sacrifice the exchange for the knight at e6, winning a pawn for it, and leaving White's e pawn still weaker."
Soltis says White would be much better after 17...c5 18.Nd5 Bxd5 19.exd5 b5 20.g4! with a kingside attack.
Reinfeld & Fine say 17...c5 18.Bf2, followed by Rfd2, "would practically stalemate all of Black's pieces."
17...Nc8 18.Rf2 b5
Reinfeld & Fine: "In order to obtain some more room. But the move eventually leads to the opening of the a file, which can only result in White's favour because of his superior mobility. Black's best chance was to give up the exchange."
Unfortunately, the immediate ...Rxe6?, if this is what they meant, fails to the engines' 19.fxe6 Re7 20.e5!, when 20...dxe5? leads to mate after 21.Rd8+ while 20...fxe5 21.Rdf1 Re8 22.Ne4 is not much better, eg 22...d5 23.e7! Nxe7 24.Nd6. That leaves 20...Rxe6, which is met by 21.exd6 Nxd6 22.Rfd2 Nf7 23.Rd7 with a large advantage.
19.Rdf2 Rde7
The engines reckon 19...b4 gives more hope, but much prefer White after 20.Ne2.
20.b4
Reinfeld & Fine: "Stops ...c5 or ...b4."
20...Kf7 21.a3 Ba8
Capablanca: "Had I played ...Rxe6, fxe6 Rxe6, as I intended to do when I went back with the knight to c8, I doubt very much if White would have been able to win the game. At least it would have been extremely difficult."
Kasparov says Capablanca's line "would have given him the best fighting-chances."
Soltis says Black, after the exchange sacrifice, "can establish a semi-fortress, with his king at e7 and knight at c4." He suggest best play runs 23.Rd4 c5! 24.bxc5 dxc5 25.Rd7+ Re7 "followed by ...Nb6." He concludes: "Black is not losing." The engines continue 26.Rd8 Nb6, when Stockfish10 reckons 27.Nd5 Bxd5 28.exd5 Rd7 29.Rb8 Nc4 30.Rc8 is winning, but Komodo10 'only' gives White the upper hand.
22.Kf2 Ra7 23.g4
Réti: "We recognise once more the type of game in which the advantage of controlling more territory is turned to account."
23...h6 24.Rd3 a5 25.h4 axb4 26.axb4 Rae7
Capablanca: "Black, with a bad game, flounders around for a move. It would have been better to play ...Ra3 to keep the open file, and at the same time to threaten to come out with the knight at b6 and c4."
27.Kf3 Rg8 28.Kf4 g6 29.Rg3 g5+
Kasparov: "The last move to be criticised by the annotators. But it's too late for good advice."
30.Kf3 Nb6 31.hxg5 hxg5 32.Rh3!
Kasparov: "32.Rxd6 would have given Black some extra breathing time."
32...Rd7 33.Kg3 Ke8 34.Rdh1 Bb7 35.e5! dxe5 36.Ne4 Nd5 37.N6c5 Bc8
Or, for example, 37...Rdg7 38.Nxb7 Rxb7 39.Nd6+.
The game finished:
38.Nxd7 Bxd7 39.Rh7 Rf8 40.Ra1 Kd8 41.Ra8+ Bc8 42.Nc5 1-0

Monday, 20 January 2020

Lasker's Spanish Inquisition (part seven)

THIS game is labelled in ChessBase's 2020 Mega database as a "casual" encounter between Lasker and David Janowski.
But it was actually part of a 10-game match in Paris in 1909, following on from a four-game match between the same opponents earlier in the year that finished with two wins apiece.
Lasker won the second match by seven wins to one with two draws.
A year later they played another match, this time with Lasker's world championship title at stake. The result was even more one-sided - Lasker scored eight wins while conceding just three draws.
Emmanuel Lasker - David Janowski
Paris 1909, Match 2, Game 3
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.d4 exd4 6.Qxd4 Bg4!?
Very much second in popularity to 6...Qxd4, but Black scores 57% with it in Mega20, compared with 53% for the normal move.
7.Nc3 Qxd4
According to Andrew Soltis in Why Lasker Matters (Batsford, 2005), Black's plan in this line is to quickly exchange queens and castle long.
8.Nxd4 0-0-0
I imagine both players were pleased with the opening - Janowski revelled in having the bishop-pair; Lasker, on the other hand, could be satisfied at having got queens off against a much-feared tactician.
9.Be3 Bb4 10.Ne2 Bxe2!?
Soltis does not like this move, but it is the choice of Stockfish10 and Komodo10. Incidentally, it suggests Janowski was not such a worshipper of the bishop-pair as is sometimes thought.
11.Kxe2 Bxc3 12.bxc3
It is unusual, to say the least, for White to end up with the only bishop in the Exchange Variation of the Spanish. Stockfish10 reckons Black is better; Komodo10 rates the position as level. Soltis does not commit to an opinion, but implies victory is likely to go to the player who can create a passer, and that this is easier for White.
12...Nf6 13.f3 Nd7 14.Rad1 Ne5 15.Rd4 b6
Soltis says Black "in theory" should avoid ...b5 because White can blockade on the c5 square, but he says 15...b5 was nevertheless right as it sets up 16...Nc4. Komodo10 likes Soltis's suggestion; Stockfish10 prefers the text.
16.f4 Nd7 17.Rhd1 c5 18.R4d3 Nb8?! 19.Kf3!?
The engines prefer a mass exchange of rooks, leaving an ending of bishop versus knight with rival pawn-majorities, which nearly always favours the bishop.
19...Rde8!?
Janowski seems to have concluded his 18th move might have been a mistake.
Can you guess Lasker's next?
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20.f5!?
Lasker's trademark move in the Exchange Spanish. The engines very much dislike it, but Soltis awards an exclamation mark. He explains: "A fundamental endgame rules holds that the way to create a passer is to advance the unopposed pawn first. Here that means 20.e5. However because Black retained rooks, 20...Re7 and ...Nc6 would be a solid defence."
20...f6!?
The engines like this move; Soltis gives it a question mark. He reckons it gives White an extra resource he would not have if the pawn stayed put.
21.g4 Re7
The engines at first claim 21...g5!? gives Black a substantial advantage. Given time, they very much downgrade their evaluations, while still slightly favouring Black. One line, given by Stockfish10, runs 22.h4 h6 23.Bf2 Nc6 24.Bg3 gxh4 25.Bxh4!? (25.Bf4 h5 26.gxh5 Rxh5 is a serious alternative) Ne5+ 26.Kf4 Nxd3+ 27.cxd3, when the engines agree White has almost full compensation for the exchange.
22.Bf4 Rhe8 23.Re3 Nc6 24.g5?
Soltis says - and the engines agree! - that 24.h4 is best. It certainly seems the normal way to proceed.
24...Na5?!
Soltis and the engines give 24...fxg5 25.Bxg5 Ne5+ 26.Kf4 Rf7. "Even though this grants White a passed pawn," Soltis writes, "he has trouble meeting 27...h6 28.Bh4 g5+."  The engines give 27.Rd8+! Rxd8 28.Bxd8 Nxg6+ 29.Kg4 Kxd8 30.fxg6 hxg6, when White has chances to hold the pawn-down rook-and-pawn ending.
According to the engines, 24...Rf7 is also OK for Black. The text seems to be somewhat irrelevant as it neglects the kingside, where the game is likely to be decided.
25.h4 Nc4 26.Re2 Rf7 27.Rg1 Kd7?
Soltis gives best play as 27...g6! 28.h5! gxf5 29.g6! hxg6 30.exf5 Ne5+! (his punctuation throughout) 31.Bxe5 fxe5, the point being that after, say, 32.hxg6 Rxf5+ 33.Ke3 Kd7 34.g7 Rg8 35.Rg6 Ke7 36.Reg2, the position is deadlocked.
28.h5 Nd6
If 28...Ne5+, then 29.Bxe5 Rxe5, when Soltis's 30.gxf6 gxf6 31.h6 "followed by Rg8 or Rg7" is just one way to win.
29.h6 fxg5 30.Rxg5 g6
Or 30...gxh6 31.Rh5 Rf6 32.Rd2 (not 32.e5? Rxf5) Kc6 33.e5 Rcf5 34.Rxd6+ etc.
The game finished:
31.fxg6 hxg6 32.Rxg6 Ref8 33.Rg7 Rxg7 34.hxg7 Rg8 35.Rg2 Ne8 36.Be5 Ke6 37.Kf4 Kf7 38.Kf5 1-0

Sunday, 19 January 2020

Lasker's Spanish Inquisition (part six)

THIS was the first game of the 1908 world championship match.
Emanuel Lasker - Siegbert Tarrasch
1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.d4
Lasker had played 5.Nc3 in a win against Tarrasch 12 years before.
5...exd4 6.Qxd4 Qxd4 7.Nxd4 c5!?
Fred Reinfeld & Reuben Fine condemned this in a 1935 book, reprinted by Dover in 1965 as Lasker's Greatest Chess Games 1889-1914, for weakening Black's queenside, but it has been the choice of many strong players.
8.Ne2 Bd7 9.b3!?
Reinfeld & Fine criticise this rare move as "an indifferent idea," preferring 9.Bf4 followed by Nd2 "with pressure on Black's queenside pawns."
Andrew Soltis in Why Lasker Matters (Batsford, 2005) says "the natural response to ...c5" is Nbc3, intending Nd5.
9...Bc6
Reinfeld & Fine recommend castling, with ...f6 to follow to blunt White's bishop.
Soltis says Alekhine was impressed by Schlechter's recommendation of 9...c4. The future world champion used it in a 1909 game, meeting 10.bxc4 with 10...Ba4?!, when 11.c3 0-0-0 was unpleasant for White. But Stockfish10 and Komodo10 come up with a major improvement, 11.Nbc3, the point being that Black's light-square bishop is trapped after 11...Bxc2?? 12.Kd2, so instead has to retreat with loss of tempo.
10.f3 Be7 11.Bb2 Bf6?!
Reinfeld & Fine are surely right in calling this "illogical, since Black's only compensation for his weakened queenside is his two bishops." Soltis calls it "a curious decision."
12.Bxf6 Nxf6 13.Nd2 0-0-0 14.0-0-0 Rd7 15.Nf4 Re8
As Soltis points out, 15...Rhd8? loses a pawn to 16.Nd3 as 16...b6?? allows 17.Ne5.
16.Nc4 b6 17.a4
Soltis gives this an exclamation mark, but does not explain why.
17...a5
This is Komodo10's choice, but Reinfeld & Fine call it "purposeless," saying Black should have played ...Kb7 followed by ...b5 to create counterplay.
18.Rxd7 Nxd7 19.Rd1 Ne5 20.Nxe5 Rxe5
Reinfeld  & Fine say the ending favours White "because of the relative immobility of Black's bishop."
21.c4
This gets an exclamation mark in both books, but the move is almost compulsory as otherwise Black undoubles his pawns with ...c4.
21...Re8 22.Nh5 Rg8?!
A horrible-looking move. The engines point out the better 22...Re6, which effectively prevents 23.Nxg7 as White does not want to allow 23...Rg6 followed by ...Rxg2.
23.Rd3 f6 24.Kd2 Be8 25.Ng3 Bd7
Soltis: "In principle, Black should be reluctant to trade rooks (...Bg6 and ...Rd8) because there is a danger that White will simply create a passed kingside pawn. Here ...c6 followed by ...Kc7 and ...b5 looks right."
26.Ke3 Re8 27.Nh5 Re7 28.g4
Another move that Soltis rewards with an exclamation mark, but does not explain what is so good about it. However, note that 28.f4? loses the e pawn, eg 28...Bc6 29.Ng3 h5 30.h4 Bxe4 31.Nxe4 f5 etc.
28...c6
Soltis praises this move, saying it is necessary to keep the knight out of d5.
29.h4 Kc7
How should White proceed?
*****
*****
*****
*****
*****
30.g5?!
This move passes without comment in both books, but it seems to be an example of how Lasker occasionally became impatient to finish a game.
The engines suggest 30.Rd1, but do not really come up with a plan for further activating White's kingside.
Perhaps 30.Kf4!? was best. The idea is to be able to play g5 without allowing the reply ...f5.
30...f5 31.Ng3 fxe4 32.Nxe4
Soltis says "the thematic" 32.fxe4 is better, but that Black is fine with ...b5. The engines reckon ...Rf7 is also satisfactory.
32...Bf5 33.h5 Rd7! 34.Rc3!?
The players have seen, and the commentators agree, that White cannot make progress after 34.Rxd7+ Kxd7 35.Kf4 Ke6. The text, hardly surprisingly, does not improve White's position, but avoids simplification - a sign, surely, that Lasker regarded himself as the superior player.
34...Rd1 35.Kf4 Bd7?
Tarrasch goes wrong almost immediately. He had a simple draw with 35...Bxe4 36.Kxe4 Rh1, which wins the h5 pawn, although White is in no trouble either as Black cannot create a passer on the queenside.
36.Re3 Rh1 37.Ng3 Rh4+ 38.Ke5 Rh3  39.f4 Kd8 40.f5 Rh4 41.f6 gxf6+ 42.Kxf6 Be8 43.Nf5!
Not the only way to win but, as Reinfeld & Fine say, "pretty and decisive."
43...Rf4
Or 43...Rxh5? 44.Rxe8+ Kxe8 45.Ng7+.
44.g6 hxg6 45.hxg6 Rg4 46.Rxe8+!? Kxe8 47.g7 Kd7 48.Nh4 Rxg7!?
A desperate last try, but White has it all covered.
49.Kxg7 Ke6 50.Nf3 Kf5 51.Kf7 Ke4 52.Ke6 Kd3 53.Kd6 kc3 54.Kxc6 Kb3 55.Kb5 1-0

Wednesday, 25 December 2019

'Somewhat Risky' Chameleon

HERE is my previously unposted Saturday-evening game from Coulsdon Christmas U2000/170.
Spanton (1951/168) - Theo Khoury (1415/110)
Sicilian Closed
1.e4 c5 2.Nc3 Nc6 3.Nge2 Nf6 4.g3!?
Grandmaster Andrew Soltis wrote the Chess Digest books The Chameleon Sicilian (1982) and Beating The Sicilian Defence: Chameleon Variation (1990), so he had a vested interest in making this move work.
(The idea of the Chameleon Sicilian is that White hedges his bets over whether to play an Open or Closed Sicilian. The hope is that White can choose an Open Sicilian if Black starts playing moves more suitable for a Closed Sicilian, and a Closed Sicilian if Black starts playing moves more suitable for an Open Sicilian.)
After 3...Nf6, Soltis writes (1990 edition): "Black would get his transpositional wish [of an Open Sicilian] after 4.d4. White can, if he wishes, avoid [this] with 4.g3 but it is somewhat risky and the only player of international stature who has taken the risk in recent years is Vlastimil Hort of Czechoslovakia."
In ChessBase's 2020 Mega database, 4.d4 is the most-popular and best-percentage-scoring move, but 4.g3 has been tried by modern strong players including Francisco Vallejo Pons and Baadur Jobava.
4...d6
The most-popular reply is 4...d5, which Soltis calls "by far the most ambitious and most aggressive of the moves available to Black." After 5.exd5 (5.d3 dxe4 "is not fun to play," according to Soltis), the main line runs 5...Nxd5 6.Bg2 Nxc3 7.bxc3! (Soltis's punctuation). However, Soltis concentrates on 5...Nc7, with the idea of setting up a Maroczy Bind, although the analysis engines Stockfish10 and Komodo10 reckon this is too slow.
5.Bg2 e6 6.0-0 Be7 7.d3 0-0
Position after 7...0-0
*****
*****
*****
*****
*****
By several transpositions, we have reached a position discussed by Soltis on page 42 of his 1990 book, where he suggests White is likely to achieve "the kind of kingside attacking position that White usually got in the last century [ie the 19th century] when Black answered 1.e4 c5 2.Nc3 Nc6 3.g3 with something other than 3...g6."
8.f4 Qc7!?
This has been played by a 2415. However, developing the queen to c7 is often thought of as being an Open Sicilian move rather than one that is useful in a Closed Sicilian. Having said that, the move comes to be Komodo10's top choice.
9.h3 a6 10.g4 Nd7 11.Be3 b5 12.g5 Nb6!?
This seems to be new. 12...b4 was played in Jacek Gdanski (2569) - Christer Niklasson (2413), Swedish team championship 2004, which continued 13.Na4 Rfe8 14.c4!? bxc3!? 15.Naxc3 with an unclear position (1-0, 39 moves).
13.f5 exf5?!
This is not liked by the engines. They suggest 13...Qd8!?, but Stockfish10 reckons 14.Qd2 gives White an edge. There is also the tempting combination 14.f6!? gxf6 15.gxf6 Bxf6 16.e5 Nxe5 17.Bxa8 with a sharp position that is hard to assess.
14.exf5 Rd8?!
14...Re8, which also allows the defensive ...Bf8, looks more natural.
15.f6 Bf8 16.Nf4 Bb7
The engines suggest 16...g6, but White is clearly better.
17.fxg7 Bxg7 18.Nh5 d5 19.Nf6+ Bxf6 20.gxf6 Kh8 21.Bh6 Ne5 22.Bf4?
Overthinking. The simple 22.Qh5 Rg8 23.Bg7+ leaves White well on top.
22...Re8?
Better is 22...Rg8, which defends and attacks along the mutually dangerous g file. If White continues, as in the game, with 23.Qh5, Black has the strong 23...d4.
23.Qh5 b4
Now 23...d4? is powerfully met by 24.Ne4 since 24...Bxe4 can be met by 25.Bxe4, which would not be possible in the line in the previous note as the g2 bishop would be pinned by a rook on g8.
24.Ne2 Nbd7 25.Bh2?
Good are 25.Bh6 (Stockfish10) and 25.Rae1 (Komodo10).
25...Qd6?
Strong is 25...d4, not least because an exchange of light-square bishops can only favour Black.
26.Rf5 Nxf6
There is no defence, eg 26...Re6 27.Raf1 Rg8 28.Qxh7+! Kxh7 29.Rh5+ Kg6 30.Rff5, and the threat of Nf4# cannot be stopped without ruinous loss of material.
27.Qh6 Re6 28.Bxe5 Rxe5 29.Rxf6 (1-0, 39 moves)

Monday, 23 December 2019

Money Game

I WENT into the fifth and last round of Coulsdon Christmas U2000/170 as one of four players on 2.5, a clear point behind leader Brendan O'Gorman.
Spanton (1951/168) - O'Gorman (1675/154)
Sicilian Closed
1.e4 c5 2.Nc3 e6 3.Nge2 Nc6 4.g3 d5
The main move in ChessBase's 2020 Mega database, and clearly critical. From now on each move by both sides has the potential to be highly significant.
5.exd5 exd5 6.Bg2 Nf6!?
A popular alternative to the main line, but not liked by Stockfish10 or Komodo10. The main line goes 6...d4 7.Nd5!? Nf6 8.Nef4 Nxd5 9.Nxd5 Bd6 10.0-0 0-0 11.d3 Be6, reaching a position Andrew Solits discusses in his Chess Digest book Beating The Sicilian Defence: Chamelon Variation (I have the 1990 revised and expanded edition).
Position after 11...Be6
*****
*****
*****
*****
*****
Soltis writes: "Black has more space but White has that great diagonal leading from g2, and the better squares for his other pieces. His queen can become quite active on the kingside at h5 or f3 and his knight is magnificent on d5. Unlike Black, he really doesn't have a bad bishop. Black, however, ha[s] good power lines for his rooks and the prospect of a queenside push (...b5/...c4) and no kingside weaknesses. Both players will want to mine the e file with rooks and both have an interest in advancing their f pawns. Two examples indicate that the position is not quite balanced and that White is always a little better."
Times have moved on - there are more than 50 examples of this position in ChessBase's 2020 Mega database, including Fischer winning with the white pieces against Spassky in their 1992 match. However, it is fair to says results overall have not been good for White, and the engines reckon the position is equal.
7.d4 cxd4
Always tempting in this type of position, at least for club players, is 7...c4?, but Soltis calls it "a positional blunder which allows White a free hand in a semi-closed centre." The engines reckon White is winning (Stockfish10) or at least has the upper hand (Komodo10) after 8.Bg5 and the other known move 8.0-0.
8.Nxd4 Bc5!?
This aggressive bishop-move is not very popular, but has been played by Andrei Sokolov (2556).
9.Qe2+ Qe7 10.Qxe7+ Nxe7 11.Nb3 Bb4
Black seems to be in difficulties whatever he plays, eg 11...Bb6 12.Bg5 Be6 13.0-0-0 0-0-0 (13...Bxf2 14.Rhf1) 14.Na4 Bc7 (14...Bxf2 15.Rd2) 15.Nd4 with much the better position for White.
12.Bd2 0-0 13.0-0
I rejected the engines' choice 13.0-0-0 because of 13...Ng4?, missing the strength of 14.Nxd5, eg 14...Nxd5 15.Bxd5 Bxd2+ 16.Rxd2, when White has won a good pawn.
13...Bf5 14.Nd4 Bxc3?!
I expected 14...Bg6, when White has a pleasant edge.
15.Nxf5 Nxf5 16.Bxc3 Ne4
The engines suggest 16...d4, but after 17.Bb4 Rfe8 18.Rfe1 they reckon White is better.
17.Bb4 Rfe8 18.Rad1 Rad8
The engines give 18...Ne7 19.Bxe7 Rxe7, but White has the upper hand after 20.Rfe1 (or the simple 20.Rxd5).
19.Rfe1 h6 20.c4
Black is losing a pawn, and White will have a passed pawn that is already on the fifth rank (and so considerably stronger than Black's isolani on his fourth rank).
20...Nf6 21.Rxe8+ Rxe8 22.cxd5 b6 23.Kf1
I was not certain 23.d6 or 23.Bh3 definitely won, but felt that centralising the king, while covering the e2 square, must be good.
23...a5 24.Bc3 Ne4?
This loses trivially, but the engines reckon Black is lost anyway.
25.Bxe4 Rxe4 26.d6 Re8 27.d7 Rd8 28.Be5 1-0
My final score of +3=1-1 saw me lose 16.4 Fide elo. It was an ECF grading performance of 159.6. I came equal-first with two others, winning £67.
Addendum 23/12/19: one of the juniors I beat does not have the rating he was credited with (the organisers used a converted ECF), which means my Fide elo loss rises to 18.

Sunday, 30 June 2019

"Distinguished - Plays With Great Style"

INTERNATIONAL master Gary Lane has always struck me as a most-perceptive analyst.
Well, that has certainly been my verdict since coming across some analysis of his while I was surfing the internet yesterday.
The analysis, now only available in a cached version, seems to have been part of an article about the Closed Sicilian for the openings site chesspublishing.com.
It brought back memories of playing in the annual 11-round Politiken Cup in Copenhagen.
The game Lane cites was played in round six of the 2001 tournament, when I was following a White repertoire laid out in grandmaster John Emms' Everyman book Attacking With 1 e4 (I had been asked to review the book for Chris Rice's now-defunct Weekend Chess Magazine).
Spanton (2051) - Michael Tandrup (1795*)
1.e4 c5 2.Nc3
Emms' book is "aimed for those who want an opening repertoire based on 1.e4 (but) who have neither the time nor the inclination to learn reams and reams of the latest modern opening theory." He recommends, among other lines, the Bishop's Opening against 1...e5, the King's Indian Attack against 1...e6 and the Closed Variation against 1...c5.
Emms explains: "In general I've opted for 'opening systems' in which learning the major ideas is just as important as learning the actual variations (but) many of my recommendations have been played at one time or another by world-class players, even world champions."
If this sounds good to you, bearing in mind that most of the theory presented by Emms is not vulnerable to sudden new discoveries, the book is available via Amazon for around £10. For what it is worth, I used the repertoire in Copenhagen to score +4=1-0 for a rating performance of 2234.
2...e6 3.g3 b6!?
I had been able to predict MT's first two moves, based on his earlier play in the tournament. But I had not expected ...b6, which in any case is not covered by Emms. Looking at ChessBase's 2019 Mega database, I see the text is only Black's sixth-most popular move, although it has been played by strong players including grandmaster Jaan Ehlvest.
4.Bg2 Bb7
I had a bit of a think here. The normal repertoire recommended by Emms is based around d3, Be3 and Qd2 before White develops his king's knight. But that is aimed at combatting Black's commonest Closed Sicilian strategy of fianchettoing his king's bishop. I decided that in the particular circumstances of this game, I should postpone as long as was reasonable a decision on whether to play d3 or d4. The game continued:
5.Nge2 Nc6 6.0-0 g6?
I gave this move a "dubious" annotation (?!) in my review for Weekend Chess Magazine, and Lane did the same in his chesspublishing.com article, but I now think a straight question-mark is correct. Lane wrote: "Normally, when Black plays an early ...e6 he puts his bishop on the a3-f8 diagonal. The problem with trying to fianchetto is that it leaves d6 weak. White exploits this detail with remarkable ease."
Normally, when Black plays an early ...e7−e6 he puts his bishop on the a3−f8 diagonal. The
problem with trying to fianchetto is that it leaves d6 weak. White exploits this detail
with remarkable ease.
Normally, when Black plays an early ...e7−e6 he puts his bishop on the a3−f8 diagonal. The
problem with trying to fianchetto is that it leaves d6 weak. White exploits this detail
with remarkable ease.
7.d4
Lane gave this an exclamation mark. I got the idea from grandmaster Andrew Soltis's 1990 Chess Digest booklet Beating The Sicilian Defense - Chameleon Variation. The idea of the Chameleon is to wait to see Black's set-up before deciding whether it is better countered with a Closed (d3) or Open (d4) Variation.
Lane wrote: "In the 'Closed Sicilian' there are times when White needs to advance the d pawn in order to take advantage of Black's inaccurate move-order. Here the English player and distinguished journalist plays with great style." There is then a link, that no longer works, to the game, and, presumably, more analysis. But we are not missing much as the game only lasts another 12 moves.
7...cxd4 8.Nxd4 Bg7
There is another game in Mega19 in which a 2245 played 8...a6, but only managed to reach move 16 before throwing in the towel.
White to make his 9th move and seriously embarrass Black 
*****
*****
*****
*****
*****
9.Ndb5 Bf8 10.Nd6+ Bxd6 11.Qxd6 Qb8 12.Nb5 Qxd6
The best move, according to analysis engines. Contrary to first impressions, it does not lose a piece to a fork, but that does not matter as Black's position is already completely gone.
13.Nxd6+ Ke7 14.e5
14.Nxb7 is met by 14...Rb8, when White's knight is trapped.
14...Rb8 15.Rd1 h6
For a while, this is Komodo9's second-choice (to 15...Ba8). The move prevents Bg5, but that is not the only way the dark-square bishop can get at Black's king.
16.b4 Nd8 17.b5 Bxg2 18.Ba3 Ba8?
Allowing an immediate finish.
19.Nf5+ 1-0
*This must have been a Danish rating as MT seems to have entered the Fide lists in October 2002 with a rating of 1922, and is today 1979.