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Yannick Pelletier vs Magnus Carlsen
41st Biel International Chess Festival (2008), Biel SUI, rd 6, Jul-26
Queen's Indian Defense: Fianchetto. Check Variation Intermezzo Line (E15)  ·  0-1

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
Notes by Stockfish 9 v010218 (minimum 6s/ply)better is 12.Ne5 Re8 13.Rc2 c5 14.Be3 Nxe5 15.dxe5 Ne4 16.Nxe4 = +0.30 (21 ply)= -0.30 (22 ply)better is 19.Nh4 g6 20.Ng2 Ba3 21.Qc2 Qg7 22.f3 Bf8 23.Bg5 h6 = +0.08 (20 ply)= -0.42 (20 ply) after 19...a6 20.e3 a5 21.Na4 Bd6 22.Bc3 b5 23.Nc5 Bxc5 24.dxc5 22...cxd4 23.Nb1 a5 24.a3 Be7 25.Nxe7+ Qxe7 26.Qxd4 Nc5 = -0.25 (23 ply) ⩲ +0.78 (25 ply) 27.Rc1 Ne4 28.Bg2 Bc8 29.Ne3 d4 30.Nd1 Bb7 31.Bxe4 Rxe4 = +0.14 (24 ply) ∓ -1.70 (22 ply) 28.f3 Be6 29.e4 dxe4 30.Rxd8 Rxd8 31.fxe4 Rd2 32.Bf1 ⩱ -1.02 (20 ply)-+ -2.58 (23 ply)better is 29...Nc3 30.Rc1 Nxe2 31.Rxc5 Nf4+ 32.gxf4 Rxe1 33.Rc2 -+ -3.02 (24 ply) ∓ -2.09 (24 ply) after 30.Nxh6+ gxh6 31.Bxc8 Rxc8 32.Rxd5 Re3 33.Rd3 Rxd3 better is 31...Nxh3 32.Kxh3 hxg4+ 33.fxg4 Bxf5 34.gxf5 Qe7 35.Kg2 -+ -3.86 (25 ply) ∓ -2.29 (21 ply)better is 34.Kg2 Qh6 35.Qf6 gxf3+ 36.Qxf3 d4 37.Rxc5 Re3 38.Qf2 d3 ∓ -1.91 (25 ply)-+ -2.65 (26 ply) 36.Qf6 Rc8 37.Kg1 Bh3 38.Rc3 Re3 39.Kh1 Rxc3 40.Qxc3 Qf4 ∓ -2.27 (25 ply) 36...Rc8 37.Qxc8 Bxc8 38.Rxc8 Rxc8 39.Rf1 Qd2 40.Rf3 -+ -9.28 (24 ply) 37.Rf1 Bh3+ 38.Kg1 Bxf1 39.Rxf1 Re6 40.Qd4 Qg5 41.Kh1 -+ -2.96 (24 ply)-+ -7.24 (30 ply)41.Red1 Re8 42.Rc3 Qg5 43.Qf2 Re4 44.Rd4 Rxd4 45.Qxd4 -+ -6.86 (29 ply)0-1

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 11 OF 12 ·  Later Kibitzing>
Jul-26-08  Ulhumbrus: After 40...Bf5 there is no satisfactory answer to the threat of 41 ...Be4+. On 41 e4 Bg4 42 Re3 Bf3+ 43 Rxf3 Qxf3+ 44 Kg1 Qxe4 Black is two pawns ahead.
Jul-26-08
Premium Chessgames Member
  Domdaniel: Best game I've seen for a while, and I've never been a particular Carlsen fan. But I liked the way White's seemingly good knight outpost on f5 proved useless, while the hemmed-in black queen on f8 emerged with a mating attack on h6. Beautiful.
Jul-26-08  Ideefixe: <Annie K> And poor Annie will have to babysit all night...:)
Jul-26-08  malthrope: <Annie K.: <Ideefixe: <--- I withdraw my comment comparing the shock treatment Magnus offers to that of Fisher's--->> Oh, please don't do that! Poor Magnus will cry all night.>

A 'classic' Annie! :^)

Jul-26-08
Premium Chessgames Member
  chancho: <solskytz> Thanks.
Jul-26-08  Atking: <Ulhumbrus: After 40...Bf5 there is no satisfactory answer to the threat of 41 ...Be4+. On 41 e4 Bg4 42 Re3 Bf3+ 43 Rxf3 Qxf3+ 44 Kg1 Qxe4 Black is two pawns ahead.> In this line black should be able to win the other rook 44...Qg3+ 45.Kh1 Qh4+ and 42...Qg5+
Jul-26-08  PinnedPiece: <We will switch over to the Bacrot-Alekseev game in a few minutes.>

How do we switch with you? Back to Home and Live?

Jul-26-08  zanshin: <chancho> Rybka says <41...Qh4+ 42.Kg1 Qg5+ 43.Kf1 Bh3+> and threats of ...Qf4+ or dxe4+ are too strong.
Jul-26-08  zanshin: <How do we switch with you? Back to Home and Live? >

Yes, it's already started.

Jul-26-08
Premium Chessgames Member
  chancho: <zanshin> Thanks for that.
Jul-26-08  waustad: I tried Rf1 against LCP and it wound up as a perpetual since the machine was so intent on grabbing the QR that it ignored Rf3 h3. Machines sure are materialistic.
Jul-26-08  Alphastar: A clever last move. Due to the mate threats (white king has nowhere to go) white is forced to play e4, but that fatally weakens f3.

Bf5 could be described as a resulting move, because the immediate Bg4 does not give black anything concrete.

White resigned because after 41. e4 Bg4! 42. Re3 Bf3+ 43. Rxf3 Qxf3+ white will pick up the rook on c1 with some checks, for example 44. Kh2 Qf4+ or 44. Kg1 Qg4+ 45. Kh1 Qh4+ 46. Kg1 Qg5+.

Jul-26-08  Ulhumbrus: On 27 Qb6?! Bc8! Pelletier may have overlooked that on 28 Nxh6+ gxh6 29 Bxc8 Black the intermediate move 29...Rd6! which saves the black Knight with tempo and wins a piece.

Yet White may have the advantage, perhaps a win after 26...Nf6. If 27 Qb6 is inadvisable, what better alternative does White have?

It may be that after 27 Bg2 White has the advantage and will win.

According to Capablanca the good player is always lucky. According to Fine when you get good you will get to be lucky. Carlsen played well enough to be lucky.

Jul-26-08  solskytz: Now I understand why Carlsen went ...h5. Brilliant - and probably was planned all along for an eventual moment. The reason was to get the queen out to wipe out the K-side once Pelletier over-weakens himself there because of the uncomfortable e4 black Kt.

The alternative double-minor exchange that I proposed instead of ...h5 now looks less 'holistic' in my eyes - and the idea of bringing in the queen for the attack is simply masterly. I have no words.

Jul-26-08  dycotiles: What a game. I mean, after 27.Qb6 white doesn't look that bad at all, to imagine that White's position would collapse in such spectacular fashion in just 13 moves is hard to believe!!!
Jul-26-08  Alphastar: <dycotiles> it's very believable once you know that white had 5 minutes left (around move 30) to make 10 moves.
Jul-26-08  THE pawn: I just went through the game really quickly, but I can't seem to see what Pelletier did the wrong way. Seems like his queen was just on the wrong side the whole time. A blunder somewhere?
Jul-26-08  beenthere240: The white bishop at h3 was undefended and when white "forced" black to play 27...Bc8, the good knight was suddenly pinned. White was forced to move his king into danger at g2 and the roof began to fall in.
Jul-26-08  AdrianP: I agree with <Ulhumbrus> (... for once). Pelletier's Qb6 was just asking for an attack on his K, and Magnus usually obliges. I think <Ulhumbrus> may be right that Pelletier didn't think ...Bc8 was playable, but it would be surprising if he simply missed the zwischenzug ...Rd6.
Jul-26-08  Ulhumbrus: <THE pawn: I just went through the game really quickly, but I can't seem to see what Pelletier did the wrong way. Seems like his queen was just on the wrong side the whole time. A blunder somewhere?>

Pelletier's Queen was on the right side.

After 26 ...Nf6! it took just one mistake, the move 27 Qb6 (instead of 27 Bg2) to let slip White's advantage, although not enough by itself to lose the game.

After 26...Nf6! White's B was no longer a weapon which did useful work on h3 attacking a N on d7, but a target for the attack ...Bc8. 27 Bg2 would have moved the bishop out of the range of the attack and avoided getting the N on f5 pinned to the bishop.

A second mistake, 28 Kg2 (instead of 28 g4) may have lost the game.

Jul-26-08  percyblakeney: Carlsen lines up rooks, queen and king on d8-g8 on move 18 and there they stand while he gets a winning position through exchanging the other pieces except for one bishop that is returned to c8.
Jul-27-08  Ulhumbrus: <percyblakeney: Carlsen lines up rooks, queen and king on d8-g8 on move 18 and there they stand while he gets a winning position through exchanging the other pieces except for one bishop that is returned to c8.> That is because after returning to c8 the bishop is placed threateningly, the Rooks are placed magnificently and the Queen is placed subtly. The lesson which this suggests is that an army placed mostly at home is an ace away from winning. One of the reasons for this is that in the position in question the men are not obstructed badly, and it does not take too long to get three of them into play.
Jul-27-08
Premium Chessgames Member
  al wazir: 37. Qd4 was the losing move. With 37. Rc3 white could have hung on.
Jul-27-08  messachess: <After 26 ...Nf6! it took just one mistake, the move 27 Qb6 (instead of 27 Bg2) to let slip White's advantage...>

Now I see that 27...Qb6 was an attempt to prevent g6 as the black N would be unguarded.

I have to admit, I do not see an actual advantage with black after 27...Bg2--although now I've been alerted the possibility. Thanks <Ulhumbrus>

Jul-27-08  messachess: 27...Bg2 certainly puts the white B on guard. It would have been interesting to see the game from there, or, from 28.g4. Certainly, after 30...h5 white's position begins to crumble. But, 28.g4 would also invite h5 (or, Re5?)
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