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Magnus Carlsen vs Xiangzhi Bu
Biel Chess Festival (2007), Biel SUI, rd 1, Jul-23
Slav Defense: General (D10)  ·  1-0

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)8...b5 was played in K Spraggett vs Murey, 1993 (0-1)better is 16.Bb4 Qd8 17.Ba5 Qe7 18.Rfd1 f5 19.g3 Nf6 20.Qc2 Ne4 ⩲ +0.66 (27 ply)= +0.08 (23 ply)better is 29.Bb6 Na3 30.Rd7 Rc8 31.g4 Bf6 32.Kg2 Nc2 33.Ba5 Rc5 ⩲ +1.05 (28 ply)better is 29...Bf6 30.Bd1 b6 31.Bxc2 Rxa5 32.Rxa5 bxa5 33.Bxe4 Kg7 ⩲ +0.52 (33 ply) ⩲ +1.16 (31 ply)better is 32...Kf8 33.Rd7 Be7 34.Rxb7 h5 35.g4 Ra5 36.a4 hxg4 ⩲ +0.85 (35 ply) ⩲ +1.42 (32 ply)better is 42...Re8 43.Bc4 Re7 44.Rc6 Ra7 45.Bb5 Rb7 46.Ba6 Rb8 ⩲ +1.12 (38 ply)better is 43.Bc4 Be7 44.Rb7 Rd6 45.Kf3 Rc6 46.Bd5 Rf6+ 47.Ke4 Rxf2 ± +1.67 (34 ply) ⩲ +1.09 (39 ply)better is 48.e4 Bg3 49.Kc4 Ke8 50.Kb5 Kd8 51.Rxb6 Rxb6+ 52.Kxb6 ± +1.53 (38 ply) ⩲ +1.01 (42 ply)better is 49...Kg7 50.Bd5 Kf8 51.Kd3 Kg7 52.Kd4 Bh2 53.Rd7 Bg3 ⩲ +1.10 (42 ply) ± +1.65 (42 ply) 72...Kf4 73.Bb7 Bg1 74.a6 Rb6+ 75.Ka4 Rd6 76.Ka5 Rd1 ± +1.77 (32 ply)+- +2.95 (34 ply)84...Rh1+ 85.Kc2 Ra1 86.Re8 Ra4 87.f8=Q+ Bxf8 88.Rxf8+ +- +61.51 (22 ply)1-0

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

Annotations by Stockfish (Computer).      [35437 more games annotated by Stockfish]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-23-07  chessic eric: great tenacity by Magnus!

84...Rxe6 85.a7! and one of the pawns queens...

Jul-23-07  patzer2: Not sure if it's forced, but 21. Be1! Nxd5 22. Rc5! initiates a series of double attack threats (coupled with pin and discovered attack threats) from which Black is never fully able to recover and equalize.
Jul-23-07  Ezzy: Carlsen's rook and bishop always had a target {'b' pawn and f7 pawn) where black's had none. This was a nice game from Carlsen against a man in top form.

This young man's talent is frightening.

Jul-23-07  Rolfo: <This young man's talent is frightening.>

Yes, he is "l'enfant terrible" of Chess..

Jul-23-07  chessmoron: This is really baffling that Bu Xiangzhi did not play 70...Kxg4.
Jul-23-07  chessmoron: <patzer2> You're numbering is wrong. <24.> Be1! Nxd5 <25.> Rc5!
Jul-23-07  Atking: Yesterday I saw the game in live. Carlsen was leading nearly 1 hour. Time pressure works too here. I'm not sure 49...Bh2 stopping f pawn progession may draw. What impress me much is the way Carlsen won that game. Not the last trick (Quite obvious) but from an indifferent opening he got at least a winning position against such opponent. Yes Eric <tenacity> may the right word.
Jul-23-07
Premium Chessgames Member
  WannaBe: <Atking: Yesterday I saw the game in live. Carlsen...>

I'm so jealous!

Jul-24-07  argishti: good game. really good. that pawn was gonna go, and carlsen just took it and won the game.
Jul-24-07  Manic: <chessmoron> After 70...Kxg4 doesn't 71.Bd7 win with the idea of trading rooks then getting the white king to b7 and advancing the pawn?
Jul-24-07  chessmoron: What about 71...Kg5?
Jul-24-07  Atking: <chessmoron: What about 71...Kg5?> Probably I don't understand. Do you mean 70...Kg4 71.Bd7 Kg5? Then simply RxRf6 KxRf6 white King on b7 and black B has to been sac for the a pawn... ?!
Jul-24-07  Billy Ray Valentine: You know, the position after White's 32nd move makes this thing look a dead draw--with the opposite colored bishops ending. Karpov would have been proud of this performance!
Jul-24-07  Appaz: <<Billy Ray Valentine> Karpov would have been proud of this performance!> Karpov is present, so I guess he followed the game with interest.
Jul-24-07  Elxiddicus: Can anybody explain why white put off capturing the e4 pawn for 5 moves (37.-41.)?
Jul-24-07  ganstaman: <Elxiddicus: Can anybody explain why white put off capturing the e4 pawn for 5 moves (37.-41.)?>

I'm not fully sure, but I don't think he needed to be in any rush to take the pawn. It wasn't going anywhere, and the only protectors it could have had would have lost the f-pawn. So white knew he had some time to do other important things first before getting one of those 2 pawns.

Jul-24-07  Billy Ray Valentine: If anyone has annotation for this game, I'd be interested to see it...

Here are comments by Steve Giddins on chessbase.com:

Magnus Carlsen joined the birthday girl in the lead, by winning the longest game of the day. Having converted the small advantage of the bishop pair into an extra pawn in an opposite-coloured bishop ending, he ground down Bu Xianghzi in a marathon effort. To those who are wondering how he managed to win the position, I can only point out a little-known postulate of endgames, namely Giddins' Rule. This states that in opposite-coloured bishop endings, it is always better to have the light-squared bishop. If you don't believe me, check your database – the light-squared bishop wins in a ratio of at least 3:1!

Jul-25-07  Billy Ray Valentine: <Elxiddicus: Can anybody explain why white put off capturing the e4 pawn for 5 moves (37.-41.)?>

This seems to be a recurring theme in Carlsen's games. Delaying an obvious move because he can solidify his position elsewhere. (Just look at how he delays playing Rf7+ in his game against Aronian. Carlsen vs Aronian, 2007) But that's one of the elements that makes his games satisfying to look over...

Jul-25-07  ajile: Looks like Carlsen didn't make the Bu Bu this time.

:o)

Jul-27-07
Premium Chessgames Member
  Honza Cervenka: <To those who are wondering how he managed to win the position, I can only point out a little-known postulate of endgames, namely Giddins' Rule. This states that in opposite-coloured bishop endings, it is always better to have the light-squared bishop.>

That probably means that I have won in P Puchmajer vs J Cervenka, 2000 despite of clear disadvantage. I am quite glad that I did not know this rule before...:-D

Jul-31-07
Premium Chessgames Member
  Richard Taylor: Carlsen plays beautiful chess - particularly strategical plans and endings - but also nice tactics - like a Capablanca.
Aug-19-07  Justawoodpusher: <Billy Ray Valentine> is something theoretically known about Giddins' Rule? I can't really figure out why this rule should apply. Maybe it has something to do with common pawn structures in end games?
Dec-25-07  notyetagm: A simply beautiful position after 84 ... ♖h6x♖e6 85 a6-a7!:


click for larger view

White promotes a passed pawn by force.

Note that the Black e6-rook is prevented from stopping the White a7-passer from promoting because the White d3-bishop <DEFENDS> the a6-square -behind- the a7-passer while the White f7-passer <DEFENDS> the e8-square.

More tremendous tactical endgame play from Magnus Carlsen.

Dec-18-12
Premium Chessgames Member
  chancho: The finish to this game is simply artistic.
Dec-18-12  Jim Bartle: ajile: Looks like Carlsen didn't make the Bu Bu this time.

But there's no reason to boo Bu.

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