Karl Johan Ribbegren vs Magnus Carlsen (2001)

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Karl Johan Ribbegren vs Magnus Carlsen
Ostlandserien 01/02 div. 1, Asker - ASKO I (2001), Asker NOR, rd 2, Nov-10
Nimzo-Indian Defense: Leningrad Variation (E30) · 1-0

8

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2

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1

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f

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h

White to move.

ANALYSIS [x]

Notes by Stockfish 9 v010218 (minimum 6s/ply)better is 4...c5 5.Nf3 h6 6.Bxf6 Qxf6 7.Rc1 cxd4 8.Nxd4 Nc6 = -0.09 (37 ply)= +0.48 (18 ply)6.Bd3 was played in Benko vs R Weinstein, 1959 (1-0)better is 8.Qg3 Be7 9.a3 Nh5 10.Bxe7 Nxe7 11.Qh3 Nf6 12.Nge2 d5 = +0.33 (27 ply)= -0.34 (28 ply)better is 9...g5 10.Bg3 Bxc3+ 11.bxc3 Kg7 12.e4 d6 13.f4 e5 = -0.25 (27 ply) 10.a3 d5 11.Bxf6 Bxf6 12.cxd5 exd5 13.Nf3 Na5 14.O-O Nc4 = +0.33 (27 ply)better is 10...Nb4 11.Bb1 c5 12.dxc5 bxc5 13.Nf3 d5 14.a3 Nc6 ⩱ -0.94 (24 ply)better is 11.a3 dxc4 12.Bxc4 Nd5 13.Bxe7 Ncxe7 14.Bxd5 Nxd5 = -0.30 (28 ply) ⩱ -0.84 (27 ply) after 11...Nb4 12.Bb1 Nbxd5 13.Nge2 Nxc3 14.bxc3 Ne4 15.Bxe7 20...Qf6 21.gxf5 exf5 22.Ng3 g6 23.Qxh6 Rac8 24.Kf2 Qg7 = +0.35 (27 ply) ± +1.87 (27 ply) 21...Qc7 22.Ng3 Qc6 23.Re2 Rf7 24.Rc2 Nc4 25.Re1 Nd6 ± +1.69 (28 ply)+- +3.58 (28 ply) 22...Rf5 23.Bxf5 exf5 24.Ng3 Qf7 25.Qxf7+ Kxf7 26.Nxf5 +- +3.10 (30 ply)+- +8.56 (25 ply)+- mate-in-13 after 26...Ke7 27.Ng6+ Kd6 28.Nxf8 Raxf8 29.Qxg7 Rxf1+28...Nc6 29.Qe4 Rc8 30.d5 Bb1 31.Qd4 g5 32.Nh5 Rf4 33.Qe5 +- +21.18 (23 ply)1-0

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

FEN COPIED

Given 4 times; par: 46 [what's this?]

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

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Oct-08-10		SugarDom: The inexperienced Magnus learning to defend...

Jul-02-16		Sergash: June 2016, Karl Johan Ribbegren is a member of the Chess Federation of Monaco and has a FIDE rating of 2267, but no official title (a candidate master or CM maybe?). Born in 1955, he was 46 years old when he played this game. Carlsen was rated 2072, according to Chessbase. I checked the game with the program Komodo 10 - 64 bits. <4.Bg5> Apaprently something new in tournament games for Carlsen. Until then, everyone had been playing 4.Qc2 here (see the games G Kacheishvili vs Carlsen, 2001 , C Braun vs Carlsen, 2001 , G Gaasland vs Carlsen, 2001 - the last one in the first round of the actual event). <6.Qf3N!?> The theoritical novelty of this game, which is quite interesting. Until then, there had been for instance 6.Nf3 Bb7 7.Bd3 and now A) 7...d5 8.cxd5 exd5 9.0-0 Nbd7 Christian Langeweg vs. Goesta Kvist, 7th Team World Championship Under 26 years old 1960, round 1, 1-0. B) 7...h6 8.Bh4 d6 9.0-0 Bxc3 10.bxc3 Nbd7 11.Nd2 Lajos Asztalos vs. Birger Rasmusson, London Olympiad (England) 1927 (Men), Yougoslavia vs. Finland, round 14, draw. C) 7...d6 8.0-0 Bxc3 9.bxc3 Nbd7 10.Nd2 h6 11.Bh4 e5 Efim Bogoliouboff vs. Paul Johner, Karlsbad (Czechoslovakia) 1929, round 17, 0-1. <8.Qh3 h6!> Stronger is 8.Qg3! = / . <9...Be7> As surprising as it might be, the best move for black here is apparently 9...g5! 10.Bg3 (or 10.Bxg5? hxg5 11.Qh6! Re8! 12.Nf3 Bf8 13.Qxg5+ Bg7 apparently completely safe for the black king!) Bxc3+! 11.bxc3 Kg7 = / . <10.f4?!> Logical, but better is 10.Nf3 =. <10...d5> First chance for Carlsen to get the upper hand: 10...Nb4! 11.Bb1! c5

Jul-02-16		Sergash: <11.cxd5?!> Better is 11.a3! dxc4! 12.Bxc4 with the idea if 12...Na5 13.Ba2. <11...Nxd5> Not the best, but still retaining a small advantage for Carlsen. There is the intermediary move 11...Nb4! 12.Rd1 (or 12.Bb1 Nbxd5 13.Nge2! ) Nxd3+ (12...Nfxd5 13.Bxe7 Nxd3+ 14.Rxd3 would transpose) 13.Rxd3 Nxd5 14.Bxe7 Qxe7 . <16...Nc6 17.Bd3 / = > 16...Ba6! 17.cxb4 (or 17.Re1 Nd3! 18.Bxd3 Bxd3 ) Bxe2 18.Re1 (or 18.Rf2 Bc4 ) Ba6 . <18...Na5?! 19.Rae1! > 18...f5! = / . <20...fxg4?! 21.Qxg4 > Always difficult to realize when the balance of the position is shifting... The best line I found here for Black is 20...Qf6! 21.gxf5 exf5 22.Ng3 g6 (or 22...Rfc8 23.Qxf5! Qxf5 24.Bxf5! Rxc3 ) 23.Qxh6 Rac8 24.Re3! Rc7! 25.Ne2! Rh7 26.Qg5 Bd5 / =. <21...Bd5? 22.Qg6! > The losing move. Black can still hope to survive with 21...Qd7 22.Ng3! Qc6! 23.Re2! . Also of similar value are 21...Qd6 or 21...Qc7. <22...Rf6?! 23.Qh7+! Kf7 24.f5!> Black is lost, but the lesser evil was 22...Rf5 23.Bxf5 exf5 24.Ng3! Qf7 25.Qxf7+ (or 25.Qxf5 Bxa2 ) Kxf7 26.Nxf5 . <27.e7> It was mate in 10 moves here: 27.Ng6! Rxf1+ 28.Rxf1 Qxf1+ 29.Bxf1 Bxe6 30.Qxg7 etc. <28.Bb5+ 1-0.> After 28.Bb5+, the game might have continued 28...Nc6 29.Qe4 Kd7 30.d5 etc.

Aug-02-23		Messiah: It seems someone has failed to win this game. :^)

Sep-21-23		Messiah: Ah, a classic!

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