England’s Luke McShane leads world number one Magnus Carlsen on the ‘black wins’ tie-break after the pulsating fourth round of play at Olympia on 6 December. Football is always pinching chess metaphors so it’s time to get our own back: all the games featured ‘end to end stuff’ while Anand-Nakamura was a game of two halves. And finally Nigel Short got the ball in the back of the net at the Classic.

Did anyone spot my ‘deliberate error’ yesterday? I told you that there had been five decisive games to the end of round three whereas in fact there had been six. There was one decisive game in round one, two in round two and three in round three. Logically, there should have been four in round four, but in fact there were ‘only’ three again, making nine out of sixteen games so far. This is an amazing percentage for an elite event and we have to congratulate all the players for going at it hammer and tongs yet again.

Pride of place must go to US number one Hikaru Nakamura for a courageous fight-back in his game against Vishy Anand. The circumstances of the game make it all the more commendable. He was sitting opposite his fourth consecutive 2800+ opponent (only the second player ever to do this in tournaments - Ivanchuk in Moscow was the first) and this time it was the world champion, and he had Black. And don’t forget it came on the back of the Carlsen Inquisition the day before (unlike in the Monty Python sketch, everybody expects the Carlsen Inquisition, but it didn’t make the experience any easier).

Hikaru’s first act of courage was to wheel out the King’s Indian Defence. Viktor Korchnoi was in the VIP room with a number of other GMs and I imagine he would have pulled a face. Viktor is (to put it mildly) antipathetic to this defence and used to love crushing people who dared to play it against him, often adding scathing comments about it during the post mortem for good measure.

The game proceeded down the Classical Main Line, with White shoving his queenside pawns forward while Black does the same with his kingside pawns. From the Black perspective, the trouble is that White often gains the centre too and this is what happened here. Despite his menacing kingside pawns, Black’s pieces are often pegged to the back two ranks as the white pieces occupy holes in the position. As Hikaru said in his post-match tweet: “Live by the sword and die by the sword. I wonder how many of these games I can play in the King’s Indian Defence before I die of a heart attack?” All King’s Indian players can relate to that!

Soon Vishy Anand was all over Hikaru like a cheap suit. But the trump card for the defender in these positions is that, though White can get a big position, they are very hard to calculate for the attacker. One wrong step and Black gets out of jail. Not only that, many of the resultant positional factors favour Black. It’s an opening for gamblers but in practice the odds are not bad. Looking at it from Black’s point of view, Nakamura himself put this rather more succinctly: “I attack and if it works, it works, if it doesn’t I lose horribly and look like an idiot. The onus is on Vishy to find all the right moves.”

That final sentence is key. Of course, the people at home watching with an engine see Vishy’s position and a +2 or +3 engine assessment and think White is winning. Maybe this is true for a computer but for a human - even a world champion - it is damnably difficult. I sat and watched the denouement of this game in the VIP room with the likes of Korchnoi, Speelman, Nunn, Hodgson, etc, and they couldn’t agree about the right way to handle it.

In the commentary room, Messrs King and Trent couldn’t figure it out either. Lawrence Trent cheekily asked Vlad Kramnik for his assessment of the game and the great Russian cleverly ducked the question with a wave of his hand and a twinkle in his eye: “you are the commentator here!”.

This truly is the wonder of chess - it continues to baffle, mystify and infuriate all its adherents, even the top GMs, years after computers have supposedly ‘solved’ it. No need to tinker with the rules - it’s hard enough as it is. Seeing live chess also gives a tremendous insight into the hit or miss decision-making process, which is sometimes obscured in annotations where games are depicted as consisting of a single, logical plan, smoothly executed. This is just science fiction. Real-life chess is rarely like this. The UK TV quiz show QI (standing for ‘Quite Interesting’) has a nice feature whereby panellists are asked general knowledge questions to which there is no known answer. They are supplied with a sign to hold up with the words ‘nobody knows’ and get extra points for holding it up at the right time. We’re thinking of supplying our commentators with these signs. It’s the ‘nobody knows’ questions which make chess more than ‘quite interesting’.

So, perfectly understandably, Vishy went wrong in a very hard position and the position turned round. It was still very hard to win for Black but Hikaru stuck to his task and brought home the points. His four-day master class with the four 2800+s was finally over and he had made a plus score. Also, he was the first US player to claim the scalp of a reigning world champion in something like two decades. He was visibly elated and an audience which had warmed to his courage and honesty in adversity the previous day gave him a great reception in the commentary room. Club players could perhaps relate better to a slugging match where the players couldn’t hope to calculate all the variations rather than the holy perfection of a Carlsen grind. “I was in one of these moods after yesterday's loss to Magnus where I felt like playing something exciting and I didn't really care if I won or lost - so I just took a chance.” Again, we all know what that feels like. That is why Hikaru is a player’s player.

Round 4

V.Anand - H.Nakamura

King’s Indian Defence

1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 0–0 6 Be2 e5 7 0–0 Nc6 8 d5 Ne7 9 b4 Ne8 10 c5 f5 11 Nd2 Nf6 12 a4 g5

This results in the loss of a tempo. 12...f4 and 12...Rf7 are more normal.

13 Nc4 h6

The reason the previous move was an error is because Black is now obliged to play 13...h6, when he would ideally like to play h7-h5 in one turn rather than two.

14 f3 f4 15 Ba3 Ng6 16 b5 dxc5

The standard King's Indian move here is 16...Ne8, protecting the base of the pawn chain. Capturing on c5 is a big concession. After 16...Ne8, 17 a5 Rf7 18 b6 axb6 19 axb6 cxb6 20 Nxb6 Rb8 21 Nb5 was a game between Smyslov and Ciocaltea from 1963 which ended in a draw.

17 Bxc5 Rf7 18 a5 h5 19 b6

White's plan is to soften up all the dark squares on the queenside and use them as invasion platforms.

19...g4 20 Nb5 cxb6 21 axb6 g3 22 Kh1

"All these lines are very similar. I'm just down a tempo, which makes a big difference, unfortunately." (Nakamura) 22 h3 looks superficially as if it secures the kingside but in real life Black tends to sacrifice his bishop on h3 and smash his way through the defences.

22...Bf8 23 d6

This secures White two major posts for his pieces, on c7 and d5.

23...a6 24 Nc7 Rb8 25 Na5 Kh8 26 Bc4 Rg7

Here your analysis engine will tell you White is +1.50 or something of that order. So Vishy is winning? Well, yes and no. It's the equivalent of a football team being 1-0 or 2-0 up before half time. But anyone who has ever followed football knows that, quite often, a team comes back from such a deficit to win, especially if it is an open, attacking game. That goes for this chess game: it's a game of football out there.

27 Ne6

The computer wants to redeploy the a1 rook to a2 and d2. Maybe that is better.

27...Bxe6 28 Bxe6 gxh2 29 Nc4?

Vishy is starting to lose the thread and now Hikaru sees a glimmer of hope.

29...Qe8! 30 Bd5

30 Bh3? runs into a problem after 30...Qb5!, attacking the two loose pieces on the c-file. But on d5 the bishop is no longer covering the h4-h3 advance of the pawn.

30...h4 31 Rf2 h3

Black's kingside attack is now up and running.

32 gxh3 Rc8 33 Ra5 Nh4

There is still a long way to go but the position is starting to look like a King's Indian players dream. Black has total control of the g-file.

34 Kxh2 Nd7

A strange retreat, indicating that Hikaru has is struggling to understand what's going on himself.

35 Bb4 Rg3 36 Qf1 Qh5 37 Ra3

37...a5

Banged down quickly but Black also has the clever 37...Nxb6! when 38 Nxb6 Rc1!! is a gorgeous deflection: 39 Qxc1 Nxf3+ and mate in a couple. However, White doesn't have to take on b6 and is still fighting.

38 Be1 Rxc4 39 Bxc4 Bxd6 40 Rxa5

In a position where humans find it almost impossible to find the absolute best continuation, the computer suggests 40 Rd3!? Bc5 41 Be6! and White could be staging a fight-back.

40...Bc5 41 Be2

White tries to rely on rugged defence.

41...Bxb6 42 Rb5 Bd4

Around here Magnus Carlsen opined that the position didn't look pretty for White.

43 Bd1

An example line: 43 Rxb7 Nc5 44 Rb8+ Kh7 45 Kh1 and now 45...Nd3! looks crushing, e.g. 46 Bxd3 Bxf2 and the black pieces invade on f3.

43...Bxf2 44 Bxf2 Nxf3+ 45 Bxf3 Qxf3 46 Rb1 Rg6 47 Rxb7 Nf6 48 Rb8+ Kh7 49 Rb7+ Kh6 0–1

The lonely rook is Vishy’s last movable piece but it can do little: 50 Rb6 Nxe4 51 Rxg6+ Kxg6 52 Qg1+ Kh5 53 Bb6 Ng5 54  Qg2 e4 and the two connected passed pawns will do the trick.

While all the excitement of the Anand-Nakamura game was going on, there was another turnaround in the Howell-McShane game. It started with the moves 1 e4 e5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 and now 4...Bb4+!?. A few years ago, if someone did that against you in a club game, you’d think he was a duffer, losing a tempo with his bishop, but the point is that after 5 c3, White can no longer put his knight on c3. It has become one of the main lines of the Scotch, with Aronian, Adams and Vallejo Pons playing it, as well as late iconoclasts such as Tal and Miles.

David Howell seemed to have an edge for a while but he lapsed into his usual time pressure (though this time it was mutual) and the position was level when he was tempted to try an extravagant combination to exploit Luke McShane’s back rank. Luke only had one defence - but one is all you need and he found it. Game over. This win took Luke into a joint lead with Magnus Carlsen, and he is technically ahead on tie-break, having won two games with Black. Interestingly, Black has now won five games to White’s four in the tournament so far.

Vladimir Kramnik was next in line for the Carlsen Inquisition. I was toying with a different analogy, depicting Magnus as a dentist examining his ‘patients’ for ‘cavities’. As usual the young man aimed for some ‘non-theoretical theory’ (if that makes sense), choosing a particularly arid line of the Nimzo-Indian. Dry as dust - you could almost see the tumbleweed blowing across the largely deserted board. It didn’t look like anything much happened but you can be pretty sure that was only because there was a formidable player in charge of the black pieces. Magnus didn’t find any ‘holes’. Anyone else in the Norwegian’s dentist chair and they might have suffered a drilling or a painful extraction of points. Vlad got off with a scaling and a light polish.

Having said it was ‘dry’, there was plenty going on below the surface, amongst the moves which didn’t get played. The best way to follow this game is to watch the relevant video in which the two adversaries ask each other ‘what do you do if I do this?’ and answer each other with nods and knowing looks, acknowledging all the dirty tricks and traps they set along for each other along the way like a couple of Harry Potter wizards.

Finally, the showdown between England’s long-time numbers one and two. Nigel moved above Mickey a year or so ago but he’s now down at number two again, and finished runner-up on tie-break at this year’s British Championship. So there was plenty of prestige at stake as there always is when they meet across the board.

The game started (Adams was White) 1 e4 e6 2 d4 d5 3 Nd2 h6!? Not totally unprecedented: Morozevich and Sadler have played it, while Nigel himself used it, unsuccessfully, when facing the ex-English, now Aussie, IM Gary Lane at the 2004 Olympiad. Levon Aronian’s comment was “It avoids theory, and it puts pressure on White. If you don’t win the game, you’re going to be ridiculed.” However, Viktor Korchnoi’s comment in the VIP room on seeing 3...h6 was more dismissive: “switch the game!!”

But Mickey Adams’ follow-up seemed insipid. On move 16 he weakened the squares in front of his king with g2-g3. “If you have to play that, your opening strategy has failed,” said Aronian in the VIP room. Nigel gradually assumed the initiative and held on to it. Just after the time control he gave up the exchange for pawns and some more attacking chances. It still wasn’t over but he continued to play extremely well to win the game. A great technical effort: it was his first win in the three London Classic tournaments and will be very welcome for that.

Unfortunately, the game ended so late that we didn’t get a post-match commentary session or a sound-bite from Nigel. Well, I’ll have to manufacture one. We started with a football theme so let’s end on one and have Nigel voice a standard football cliché (though I’m sure he would have been much funnier than this): “I got the ball... and I put it in the back of the net. So that’s one in the eye for the knockers who said I was finished!”

No	Name		Win	Draw	Loss	Score /games	Tie break	Rating	TPR
1	McShane	Luke J	2	2	0	8.0 / 4	2 black wins	2671	2942
2	Carlsen	Magnus	2	2	0	8.0 / 4	2 white wins	2826	2909
3	Nakamura	Hikaru	2	1	1	7.0 / 4		2758	2905
4	Kramnik	Vladimir	1	2	0	5.0 / 3		2800	2886
5	Aronian	Levon	1	1	1	4.0 / 3		2802	2709
6	Short	Nigel D	1	0	2	3.0 / 3		2698	2654
7	Anand	Viswanathan	0	2	1	2.0 / 3		2811	2583
8	Howell	David W L	0	2	2	2.0 / 4		2633	2568
	Adams	Michael	0	2	2	2.0 / 4		2734	2510

The scores above are ‘absolute’, i.e. they make no allowance for the three players who have played fewer games. My unofficial ‘relative’ scores (using a golf-style formula but in reverse: +2 for a win, ‑1 for a loss, draws don't count) are 1 McShane +4, 2 Carlsen +4, 3 Nakamura +3, 4 Kramnik +2, 5 Aronian +1, 6 Short 0, 7 Anand -1, 8-9 Adams, Howell -2.

Wednesday 7 December is a rest day for the Classic (though there are other activities that can be followed online - see the website). Round 5 games start on Thursday 8 December at the usual time of 1400 UK time. Luke McShane has the bye and will be joining the commentary team for the day.

For more information and to buy tickets to the London Chess Classic, please go to www.londonchessclassic.com -

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