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Ivan Cheparinov vs Ian Nepomniachtchi
"Chep on his Shoulder" (game of the day Jan-16-2008)
Corus Group B (2008), Wijk aan Zee NED, rd 4, Jan-15
Semi-Slav Defense: Anti-Moscow Gambit (D44)  ·  1-0



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Given 42 times; par: 29 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jan-16-08  totalnewbie: <Open Defence> I'm inclined to agree about 14-17, it feels to me that black extended too far on the king-side without developing his queen's minor pieces. I think with a little more development (at least of the knight) then white would not have been able to simply run around rampant and unchecked down the center and on the kingside.

After 19. ... O-O white has 2 rooks, bishop, queen, and knight on the king-side while black only has a rook and queen, not including the severely weakened pawns that fall shortly thereafter.

With so many threats to his ridiculously exposed king and with white able to so naturally penetrate black's defences with tempo, black's passed pawn is almost of no consequence to white, as black is not able to support it with anything.

Jan-16-08  arsen387: <D.Observer: Can 29...Rd7 save the game?> I think no, bcz that move allows 30.Qg5+ after which black loses a piece or even gets mated in several moves.
Jan-16-08  jhoro: if you are like me, wondering what <Chep on his Shoulder> means, this may explain it
Jan-16-08  ivan999: chep in bulgarian could mean something really funny.
Jan-16-08  kevin86: I enjoyed how black castled "out of habit". Certainly it wasn't to protect the king.

The ending came on a focus attack on the rook at f8 after white gained total domination of black's home row.

Jan-16-08  chopin4525: I Cheparinov (2713) - I Nepomniachtchi (2600) [D43]
Corus (Group B) Wijk aan Zee NED (4), 15.01.2008
[Fritz 10 (180s)]

D43: Semi-Slav: 5 Bg5 h6 1.d4 d5 2.c4 c6 3.Nf3 e6 4.Nc3 Nf6 5.Bg5 h6 6.Bh4 dxc4 7.e4 g5 8.Bg3 b5 9.Ne5 Bb4 [9...h5 10.h3 Bb7 11.Qf3 Nbd7 12.Rd1 Qe7 13.a3 Rd8 14.Be2 Rg8 15.Nxd7 Rxd7 16.Be5 Bg7 17.Bxf6 Qxf6 18.Qxf6 Bxf6 19.e5 Be7 20.Bxh5 Rh8 21.Bf3 Rh4 22.g4 Kd8 23.Ke2 Kc7 24.Ne4 Cramling,P (2521)-Van Wely,L (2675)/San Sebastian 2006/CBM 115/0-1 (48); 9...Bb7 10.h4 g4 11.Nxg4 Nxg4 12.Qxg4 Qxd4 13.Rd1 Qg7 14.Qf4 Na6 15.Be2 Nc5 16.0-0 Rc8 17.e5 Be7 18.Qe3 Rd8 19.Rxd8+ Kxd8 20.b4 cxb3 21.axb3 a5 22.Rc1 Qf8 23.Bf3 Kc8 24.Ne2 Bellon Lopez,J (2440)-Almagro Mazariegos,S (2311)/ La Roda 2006/CBM 111 ext/1-0 (32)] 10.Be2N [10.Qf3 Bb7 11.Rd1 Nbd7 12.a3 (12.Be2 Qe7 13.0-0 0-0-0 14.d5 exd5 15.Nxc6 Bxc6 16.exd5 Nxd5 17.Nxd5 Qe6 18.a3 Nb6 19.axb4 Nxd5 20.Rde1 Nf4 21.Qa3 Qd7 1/2-1/2 Eljanov,P (2568)-Potkin,V (2495)/St Petersburg 2002/EXT 2003) 12...Ba5 13.Be2 Qe7 14.h4 Rg8 15.hxg5 hxg5 16.0-0 0-0-0 17.Nxd7 Nxd7 18.d5 a6 19.a4 Qf6 20.Qg4 Ne5 21.Bxe5 Qxe5 22.Qf3 f5 23.dxe6 f4 24.Qg4 Kb8 Eljanov,P (2597)-Potkin,V (2534)/ Int 2003/CBM 097 ext/1-0 (51); ¹10.Qf3!?² must be considered] 10...Nxe4³ 11.0-0 Bxc3 [Less advisable is 11...Nxc3 12.bxc3 Bxc3 13.Nxf7 Kxf7 14.Bh5+ Kg8 15.Qf3²; 11...Nxg3?! 12.fxg3 0-0 13.Nxb5 cxb5 14.Bf3µ] 12.bxc3 Nxc3 White has the pair of bishops 13.Qc2 Nxe2+ [13...Qxd4 14.Bh5 0-0 15.Rfd1 Nxd1 16.Rxd1 Qxd1+ 17.Qxd1 ] 14.Qxe2 h5 [14...Qxd4? is worthless because of 15.Qf3 Rh7 16.Rfd1 ] 15.f4 f5 Black is behind in development. [15...Qxd4+? doesn't work because of 16.Bf2 Qd6 17.fxg5 ] 16.fxg5 Qxg5 Black has new hanging pawns: e6+f5 [¹16...h4!? 17.Be1 Qxg5³ (‹17...Qxd4+ 18.Kh1 Nd7 19.Ng6±) ] 17.Rae1= h4 Black threatens to win material: h4xg3 18.Nf3 Qg4 [18...Qh5!? 19.Bxh4 0-0²] 19.Qe5² White threatens to win material: Qe5xh8 19...0-0 Seems a bit risky 20.Nxh4 [¹20.Bxh4 Qg7 21.Qd6²] 20...Rf7? [¹20...Rd8² and Black could well hope to play on] 21.Qd6 Nd7?? Black crumbles in face of a dire situation [¹21...Bd7 22.Nf3 Qh5 ] 22.Rxe6 Nf8 23.Re8 c3 [23...Qg5 24.Be5 c3 25.Nf3 ] 24.Ng6 Be6 25.Ne7+ [¹25.Rxa8 nails it down 25...Qxg6 26.Re1 ] 25...Rxe7 26.Rxa8 [26.Qxe7? looks attractive, but 26...Rxe8 27.Qxe8 c2 ; 26.Rxe7?! is much weaker 26...Bd5 27.Re5 Rd8±] 26...Qg5 [26...Kf7 what else? 27.h3 Qg5 ] 27.Qd8 [¹27.Bf4 seems even better 27...Qf6 28.Be5 ] 27...Qg7 [27...Kh7 praying for a miracle 28.Qxf8 c2 29.Qh8+ Kg6 ] 28.Be5 Qf7 29.Bd6 [29.Bd6 Qe8 30.Qxe8 Rxe8 31.Rxe8 ] 1-0 :)

Jan-16-08  parmetd: tolow47: Clearly to me blacks move 7.g5 was the killer for me it created the wholes that white exploited.

incorrect in fact not playing g5 would be a mistake.

Jan-16-08  swordfish: I think 7...g5 is the book move in that variation of the Semi-Slav.
Jan-16-08  Mulyahnto: It seems like 9...Bb4 is new (I think Bb7 is usually played here). In the end, white's position is just so much superior even though he's down 3 pawns.
Jan-16-08  chaq: 20...Rd7?
Jan-16-08  acirce: Well, 7..b5 transposes to the ultra-chaotic Botvinnik variation: 8.e5 g5 9.Nxg5 hxg5 10.Bxg5

I think that these days theory considers it good for White, and indeed none of the top players seem very inclined to enter it with Black any more, while in the 90's it used to be hot.

Still, it is playable, of course. But other than that there's no real alternative to 7..g5.

Jan-16-08  DDR: Instead of 11...Bxc3 11...Nxg3 and black has a winning position.
Jan-16-08  DDR: I am not saying that 11.Bxc3 is a mistake, but 11...Nxg3 is much more preferable from practical standpoint and still gives black winning advantage.
Jan-16-08  D4n: This is a well played game, but I think black lost tempo on move 24...Be6. A well needed move to protect from mate, but losing a rook in return doesn't help much either...
Jan-16-08  Ezzy: Black's queenside undeveloped for 20 moves - That is pretty rare.
Jan-16-08  Xeeniner: <DDR> I don't know. 11. ...Nxg3 12. fxg3, potentially followed up by Bh4. White has a lot of pressure on the kingside, particularly on f7.
Jan-16-08  Amarande: <DDR> I don't think 11 ... Nxg3 is winning; do you have analysis to justify this? I see 12 fxg3 and Black is in more trouble, as O-O is not an option due to the exposed King's flank, and now White has an open f-file in addition to all Black's other woes.

Certainly it's miles better than 11 ... Bxc3?; Black's exchanges show an almost amateurish lack of understanding of the Pawn structure. Black has a weak color complex; he needs the dark squared Bishop sorely. He then proceeds to exchange his Knight, his only other developed piece, for White's *light* squared Bishop, the only reward being a mere Pawn (which only serves to open the position further while his King has no haven to speak of). After 11 ... Bxc3?, he certainly should have followed up by exchanging White's other Bishop instead, which would at least remove the strongest ravager of his weak squares.

14 ... h5 makes things worse (it further weakens the black squares) but by then Black is likely already losing, with no development and a King in the center in a semi-open position, plus the serious weak color complex. Weakness begets weakness (Black would possibly actually have been better off with 15 ... g4, completing the ruin of his black squares, rather than allowing White to open a line so readily).

By the 14th move I can't even see development or the return of some material saving Black. A plausible continuation where Black makes a belated effort at mobilizing his pieces could be: 14 ... Nd7 15 Nxc6 Qb6 16 Be5 f6 17 Bd6 Kf7 18 Qh5+ Kg7 19 d5 exd5 20 Rae1 Ne5 21 Nxe5 fxe5 (Qxd6 22 Qf7#) 22 Bxe5+ and Black is quite lost, as his King cannot survive on the open lines. Interesting variations occur at previous junctures, but the principle is the same; Black has no real chance to improve his position.

Jan-16-08  refutor: i imagine it won't be long before this line goes out of style for White and he returns to the Moscow Variation 6.Bxf6
Premium Chessgames Member
  Jimfromprovidence: Black was not doomed early in the match. After 21…Qg5 (instead of Nd7) black is very much alive.

click for larger view

The queen now has access to the back ranks and the knight (if it were at d7) does not block black’s e pawn protection by the bishop. If still 22 Rxe6, then this line leads to a complicated series of exchanges where black has an extra rook and pawn vs. the loss of a bishop and a knight.

I can’t find a win for white anywhere after 21…Qg5.

Jan-17-08  patzer2: Maybe it's not worth mentioning, but in instructing my Grandson I might mention that 18. Nf3! and the followup 18...Qg5 19. Qe5! is a nice example of combining defending and attacking moves.
Premium Chessgames Member
  Sneaky: patzer2, you have a grandson?? I am surprised--I imagined you much younger. Please take that as a compliment, as I am merely noting your youthful enthusiasm.
Jan-17-08  notyetagm: <kevin86: I enjoyed how black castled "out of habit". Certainly it wasn't to protect the king.>


Premium Chessgames Member
  al wazir: <chopin4525:> You seem to be the only one who supplied any kind of answer to my question (p.1: <How does white win after 26...Kf7 ?>).

But I do not find your answer <. . . [26...Kf7 what else? 27.h3 Qg5 ]> convincing.

Premium Chessgames Member
  rodchuck: <al wazir> 27. Qd8 threatening Nf8 followed by 28. Bd6 seems pretty solid
May-23-13  Cemoblanca: What lessons have been learnt? That too many pawn moves in the opening will lead (in most cases) to a disaster.

Here's another example: Morphy vs G S Carr, 1858

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