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Peter Heine Nielsen vs Darmen Sadvakasov
"Harmin' Darmen" (game of the day Dec-03-2014)
Bled Olympiad (2002), Bled SLO, rd 10, Nov-05
Queen's Gambit Accepted: Classical Defense. Steinitz Development Variation (D26)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Nov-07-02  dippel: Have a look: 19.Bxd6! Ė a queen sacrifice at the 2002 Bled Olympiad. A nice game by Peter Heine Nielsen from Denmark.
Nov-07-02
Premium Chessgames Member
  Sneaky: Wow!!
Nov-11-02  drukenknight: first off he's giving up the Q for R/B a difference of 1 pt. by my count.

One thing I noticed was that I thought black was going to play Bd6 a move before eg 17....Bd6 which might then go 18 Bxd6 Qxd6 19 Bxc6 Qxc6 20 Qxc6 Bxc6 and then the N has to move I guess.

So a similar thing came up a move earlier, but a move later white has the R on c1 and seems to make a difference.

Speaking of attacks on the Q, why not 18...Bf5?

Nov-12-02  dippel: Here is Peter Heine Nielsenís own line: 17...Ld6? 18.Lxd6 Dxd6 19.Lxf7+ Txf7 20.Dxe8 Have a look here: http://www.dsu.dk/ol2002/olparti/bl... but unfortunately itís all in Danish.
Nov-12-02  dippel: Sorry folks the line is in Danish notation here it is in English: 17...Bd6? 18.Bxd6 Qxd6 19.Bxf7+ Rxf7 20.Qxe8
Nov-13-02
Premium Chessgames Member
  Honza Cervenka: 18...Bf5 is refuted by simple 19.Qe3 Bd7 (what else?) 20.Ne5 etc.
Nov-14-02  drukenknight: 19 Qe3 Bxa3

off the top of my head, maybe I'm mssing something.

Nov-14-02  morphynoman2: Against 24... Ne7 the nice move is 25. Rc8+!
Nov-14-02
Premium Chessgames Member
  Honza Cervenka: 18...Bf5 19.Qe3 Bxa3 20.Qxa3
Dec-03-14
Premium Chessgames Member
  Phony Benoni: Did you ever have one of those days when every square seemed to go wrong?
Dec-03-14  Tim Delaney: Black must allow the exchange of knights, after which the ending is hopeless. The queen is no match for coordinated rooks.
Dec-03-14  Tim Delaney: <morphynoman2: Against 24... Ne7 the nice move is 25. Rc8+!>

Yes, much nicer than the prosaic Re1.

Dec-03-14
Premium Chessgames Member
  morfishine: Full Nielsen

*****

Dec-03-14
Premium Chessgames Member
  Richard Taylor: Good game!
Dec-03-14
Premium Chessgames Member
  Bubo bubo: <Tim Delaney: Black must allow the exchange of knights, after which the ending is hopeless.> In fact Black will lose the knight without compensation, as White threatens to fork king and queen with 25.Rc8+ Kf7 26.Ng5+. Black may try to prevent this by playing 24...Nd8, but the pin 25.Rc8 will win the knight after all.
Dec-03-14
Premium Chessgames Member
  Penguincw: 23.Rxf7+. Sweet move. Obviously, if 23...Kxf7 then 24.Ng5+ and white is winning.
Dec-03-14  ramonvalera: Why not 22...Qxd7?
Dec-03-14
Premium Chessgames Member
  kevin86: black will lose the queen or knight.
Oct-29-16  yadasampati: What a brilliant combination! Chess can be really beautiful.
Oct-29-16  dfcx: material is even. Black's d6 bishop is hanging, with its knight pinned. White should take advantage of these.

19.Bxd6 Rxe4 20.Bxe4

black can save its knight or rook, but not both

20....Rd8/Re8 21.Rxc6 Bxc6 22.Rc1 gets the knight.

20...Qe8 21.Bxf8 Kxf8

white has 2R against Q.

Oct-29-16  Pinkerton: Did not even look at 22...Qxe4

I had 22...Qxd7 23.Bxc6 and thought Black resigned prematurely.

Oct-29-16  PJs Studio: I'm VERY curious if Nielsen saw 23.Rxf7 when he played 19.Bxd6! I ask because even without seeing the whole combination, white seems to have full compensation for his queen regardless of blacks move choices
Oct-29-16
Premium Chessgames Member
  patzer2: If it's Saturday, then it must be a difficult. The only difficult combination I could see was the Queen sacrifice 19. Bxd6 Rxe4 20.Bxe4. So I went for it for it for my Saturday puzzle solution.

However, I missed several subtle best moves in the follow-up.

For example, after 20...Rd8 (diagram below),


click for larger view

I missed the best move 21. Bb4! when play might continue 21...h6 22. Bxc6 Bxc6 23. Rxd8+ Qxd8 24. Rxc6 (+2.50 @ 20 depth, Deep Fritz 15).

Here (diagram above), my weak attempt was 21. Bxc6? which allows Black to equalize after 21...Bxc6 22. Ne5 Qe6 23. Nxc6 Rxd6 24. Ne7+ = (-0.12 @ 21 depth, Deep Fritz 15).

In the main line, I over looked the stronger 22. Rxd7 (+2.38 @ 27 depth, Komodo 8). Instead, I went for the weaker 22. Bxc6 Bxc6 23. Re1 Qa8 24. Ne5 (+1.15 @ 25 depth, Deep Fritz 15).

P.S.: For a Black improvement I'd look to the opening, where it appears the second player started to fall behind in development after 10...a6. Instead, the more active 10...Nd5 as in Black's win in A Kolev vs Z Bratanov, 2004 is probably better.

Oct-29-16
Premium Chessgames Member
  patzer2: Black's decisive mistake may have been 15...Qc7?!, allowing 16. Qe4 (+1.43 @ 29 depth, Stockfish 5 x 64).

Instead, 15...Rc8 16. Bf4 Bf6 17. Rd2 (0.46 @ 21 depth, Deep Fritz 15) gives Black a better fighting chance.

Oct-29-16
Premium Chessgames Member
  patzer2: <PJs Studio> Black made it easier for White with 22...Qxe4?, allowing the surprise winning move 23. Rxf7! (+5.22 @ 27 depth, Stockfish 7).

Although 22. Qxd7 23. Bxc6 Qd3 + - (+2.38 @ 27 depth, Komodo 8) puts up more resistance, it appears all the winning chances still belong to White.

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