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Magnus Carlsen vs Shakhriyar Mamedyarov
Tal Memorial (2006), Moscow RUS, rd 3, Nov-08
Sicilian Defense: Paulsen Variation (B46)  ·  1/2-1/2
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Nov-08-06  Ulhumbrus: 11..g6 invites 12 Bh6 preventing King side castling, while 12Na4 invites 12..0-0. If Black cannot castle on the King side, that suggests that 14...c4 is a losing mistake, exposing the Queen side to attack in the event that Black has to castle there. One alternative to 16 Re3 is 16 Nb2 followed by a piece sacrifice on c4 eg Nxc4 and Bxc4 when Black's King is exposed to attack on the Queen side.
Nov-08-06  Per: Couldnt White have played on for a win here!?
Nov-08-06  awfulhangover: 22.Bg5? Qc6?
If 22.- Qxc2 black wins according to Radjabov (and comps). Radja also said that Magnus should have played 28. Rg3, followed by f4 and with a clear advantage.
Nov-08-06  euripides: <Per> Interesting.

If White takes the h pawn and tries to avoid perpetual check then Black can win not only the f pawn but also the c pawn; 31.Rxh7 Nxf2 32.Be2 (or g3 Ng4+ 33. Kg2 Ne3+) Nd1+ 33.Kf1 Ne3+ 34.Ke1 Nxc2+.

If White moves up the f file and Black tries the same idea, his chances look slightly better e.g. 30.Rf6 Ng4 31.Rxe6 Nxf2 32.Be2 Nd1+ 33.Kf1 Ne3+ 34.Ke1 Nxc2+ 35.Kd2 may be good for White, with the a6 pawn under attack.

Black has some tricky resources with the d pawn but they may not quite work e.g. 30.Rf6 d4 31.Rxe6 d3 32.Rxe5 Bd4 33.Re1 Bb2 34.cxd3 c3 35.d4 c2 36.Bxa6+ is probably winning for White after he gives the rook for the c pawn.

But if Black sits tight with 30.Rf6 Kd7 the rook is in danger e.g. 31.h3 Ke7 32.Rf4 g5. I think therefore White would be running some risk.

Nov-08-06  euripides: <awful> ah ! I hadn't thought of 28. or 30.Rg3 (same position). Perhaps Black might try 30...h6 (stopping Rg5) when White still has trouble unravelling without losing the f pawn and Black has some threats with d4.
Nov-08-06
Premium Chessgames Member
  acirce: Radjabov was very surprised Carlsen didn't play on, as was I. I saved some of his (Ubiyca's) comments from ICC.

---

<After 27..Kxc8>

Ubiyca(GM) kibitzes: Rg3 now the best I guess
Ubiyca(GM) kibitzes: coz then Be2-Kf1
Ubiyca(GM) kibitzes: etc..
Ubiyca(GM) kibitzes: and f4 ideas

Mazoetan kibitzes: who is better ubiyca?
PhishMaster kibitzes: Why do you think that Rg3 is better than Rf4?

Ubiyca(GM) kibitzes: white is better
Ubiyca(GM) kibitzes: because on f4 it loses control, stands shaky and on g3 Ubiyca(GM) kibitzes: there are h4-h5 x g6 etc..

<After 28.Rh3 Ng4 29.Rf3>

Ubiyca(GM) kibitzes: ok Ne5 then Rg3
Ubiyca(GM) kibitzes: he checks black probably if they like the position after Ne5 Rg3 or not:)

<After 29..Ne5 30.Rh3>

Ubiyca(GM) kibitzes: but they joke or what?:)
Ubiyca(GM) kibitzes: Magnus fantastic
Ubiyca(GM) kibitzes: drew this position?
Ubiyca(GM) kibitzes: haha fantastic
Ubiyca(GM) kibitzes: first time in my life I see such draw

Ubiyca(GM) kibitzes: no but I think he would not lose this pos with black Ubiyca(GM) kibitzes: but still white is an exchange up Ubiyca(GM) kibitzes: totally OK position no attack
Ubiyca(GM) kibitzes: ok there is counter-play
Ubiyca(GM) kibitzes: but still

melancholic kibitzes: mamed would hold the position but still white should try to win Ubiyca(GM) kibitzes: yes he would hold it I guess but OK

TheGladiator kibitzes: Radjabov: I take it you would've played on and consider that most GMs would ...? Ubiyca(GM) kibitzes: I would play it for sure but OK

Ubiyca(GM) kibitzes: maybe Magnus didn't like that pieces are not greatly placed Ubiyca(GM) kibitzes: didn't see any plans

Nov-08-06  euripides: <acirce> interesting, thanks.

After 30.Rg3 h6 31.Be2 Black could play g5. Now f4 and h4 are prevented and the rook is almost paralysed.

So I guess White should play 30.Rg3 h6 31.h4. Now one possibility might be 31...d4 (with one idea Nd3 cxd3 c3) 32.Be2 d3 33.cxd3 c3 34.Bd1 h5 35.Kf1 Ng4 36.f3 Ne3+ 37.Ke1 c2 winning the bishop.

I have a nasty feeling this is full of holes e.g. White might not take on d3 or might throw in d4 at some stage, but Carlsen might have been worried about this kind of resource for Black.

Nov-08-06  Ezzy: Carlsen,M (2698) - Mamedyarov,S (2728) [B46]
Tal Memorial Moscow RUS (3), 08.11.2006
1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.d4 cxd4 5.Nxd4 Nc6 6.Nxc6 bxc6 7.Bd3 d5 8.0–0 Nf6 9.Re1 Be7 10.e5 Nd7 11.Qg4 g6 12.Na4 Qa5 13.Bh6 c5 <New move I think. It does have a serious threat of 14...c4 winning a piece.> 14.b3 c4 15.Bf1 Bb7 16.Re3 Bc6 17.Qf4 Bxa4 18.Rf3 0–0–0 19.Qxf7 Rhe8 20.bxa4 Bc5 <Now black threatens 20...Nxe5 because the 'e6' pawn is now protected>. 21.Rb1 <Now 21...Nxe5?? is a disaster because of 22 Qxb7 mate>. 21...Qxa4 22.Bg5 Qc6 <Now threatening 23...Nxe5 as b7 is now protected. 22...Qxc2 23.Bxd8 Rxd8 Black now has the winning threat 24...Rf8 when the pressure on f2 is too much to handle. 24.Qxe6 Threat 25 Qc6 mate. 24...Qxb1 25.Qxd5 Qb4 and black is a piece up with an exposed king, but should win.> 23.Bxd8 Nxe5 24.Rb8+ <[24.Qxh7 Nxf3+ 25.gxf3 Rxd8 26.Bh3 Re8 27.Re1 With advantage to white and an interesting fight ahead.]> 24...Kxb8 25.Bc7+ Qxc7 26.Qxe8+ Qc8 27.Qxc8+ Kxc8 28.Rh3 Ng4 29.Rf3 Ne5 30.Rh3 Ng4 31.Rf3 ˝–˝

Fascinating and exciting game between these two stars. It’s a shame the game didn’t get played to a finish.

Wow, this Sicilian defense is a complex opening. I think I will stick to the Petroff.

Great game but I selfishly wanted to see more.

Nov-09-06
Premium Chessgames Member
  acirce: <euripides> Clever idea. I don't think it works as 36.f3 is not forced, but even if it does 38.Bxc2 Nxc2 39.Rxg6 picks up the g-pawn as well and liberates the rook, retaining excellent winning chances. However, it demonstrates that the position is not easy to play. I would still have expected Carlsen to play on (he had more time left too, I think), but perhaps possibilities like that one confused him.
Nov-09-06  euripides: <acirce> thanks. <38.Bxc2 Nxc2 39.Rxg6 > 38...Nxc2 is check. However, after 39.Kd2 Black's knight is under attack and I guess 39...Nb4 may leave Black's forces too discoordinated to hold the kingside pawns if White simply lets the a pawn go with 40.Rxg6 rather than allowing say 40.a3 Nd5 41.a4 Nf4. After 39...Nd4 40.Rxg6 I agree Black seems too ragged e.g. 40...Nf5 would be a cute way to try to defend the h pawn (41.Rh6? Be3+) but the e pawn drops. I agree f3 isn't forced, but the f2 pawn is under attack and Rf3 could produce a repetition as in the game. Certainly Black has to play sharply to exploit the piece activity or at least get a good square for his knight before White consolidates.
Nov-09-06
Premium Chessgames Member
  acirce: <38...Nxc2 is check.> Right, I assumed 37.Ke2 instead of your 37.Ke1.

<I agree f3 isn't forced, but the f2 pawn is under attack and Rf3 could produce a repetition as in the game.> I think White can afford to lose it, as Black has already sacrificed a pawn himself. 36.Ke2 and the c-pawn is not dangerous. Well, actually, as ..Bxf2 Rxg4! and ..Nxf2 Rxg6 it seems that White just wins here.

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