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Dragoljub Velimirovic vs Ljubomir Ljubojevic
"A Veli Ljubley Game" (game of the day Aug-21-2018)
Yugoslav Championship (1972), Umag YUG, rd 6, Feb-??
Sicilian Defense: Najdorf Variation. Main Line (B99)  ·  1-0



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Given 27 times; par: 30 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-13-06  MorphyMatt: (continued from last post)

4b) 19. ♖e2! (this is the correct move order; White defends the d5-pawn for one more move and so cuts out the defense of line "4a2") 19... ♘f6} (19... ♕xa2 20. ♕h6 transposes to the winning line "1" above) 20. ♕h6 ♔e7 (20... ♔e8 21. ♕h4! ♔e7 22. ♘c5+ ♔f7 23. ♖e6 wins) 21. ♘d4+ does win, but it requires accurate play:

click for larger view

(continued on to next post)

Apr-13-06  MorphyMatt: (continued from last post)

4b1) 21... ♔f7 22. ♘f3 ♖g7 23. ♖e7+ ♔xe7 24. ♕xg7+ ♔e8 25. ♕xb7 and Black's position is hopeless.

4b2) 21... ♔d8 22. ♕h4 ♖f8 (or 22... ♕xa2 23. ♕xf6+ ♔c8 24. ♖e7 ♗xd5 25. ♕xd6 ♕a1+ 26. ♔d2 ♕a5+ 27. c3 ♕d8 28. ♕c5+ ♔b8 29. ♗e4 ♗xe4 30. ♕e5+ ♔c8 31. ♕xe4 and black loses) 23. ♘e6+ ♔d7 24. ♕h3! ♖fb8 25. ♘c5+ ♔d8 (25... ♔e7 26. ♖e7+) 26. ♕e6 ♔c7 27. ♕e7+ ♔b6 28. ♕xd6+ ♔a7 29. ♕xf6 wins.

4b3) 21... ♔d7 22. ♕h3+ ♔c7 (after 22... ♔d8 23. ♕e6 ♕xa2 24. ♕xf6+ we transpose to "4b2") 23. ♖e7+ ♔b8 24. ♕e6 ♕d8 (continued on to next post)

Apr-13-06  MorphyMatt: (continued from last post)

25. ♕xf6 ♗xd5 26. ♕g5 ♗b7 27. ♗xb5! ♕b6 (27... axb5 28. ♖xb7+ ♔xb7 29. ♕d5+ ♔b6 30. ♕xb5+ wins the queen) and now one very promising line is 28. ♗c6! ♗xc6 29. ♕a5 ♕xa5 30. ♘xc6+ ♔c8 31. ♘xa5 with two pawns and an excellent position for the exchange.

5) 18... ♘c5! (the only move) 19. ♖e2 and now Black probably has two wats to save the game:

click for larger view

5a) 19... ♔d7? 20. ♗f5!! ♗xd5 (or 20... gxf5 21. ♘xc5+ dxc5 22. ♖e7+ ♔d8 23. ♖g7+ wins) 21. ♘xc5+! (21. ♘d4+ gxf5 is less clear) 21... ♔c6 22. ♗d7+!! (a superb move) 22... ♔xc5 23. ♕e7 (the ♕e7-e3 manoeuvre is reminiscent of a chess problem) 23... ♔b6 24. ♕xd6+ ♔a7 25. ♕xd5 with a large advantage for White.

5b) 19... ♘xd3+! 20. cxd3 ♔f7 21. ♕h6 ♗xd5 22. ♕xh7+ ♔f6 23. ♕h4+ ♔f7 24. ♘g5+ ♔f6 (continued on to next post)

Apr-13-06  MorphyMatt: (continued from last post)

(24... ♔f8? 25. ♕h6+ ♖g7 26. ♕h8+ ♗g8 27. ♘e6+ wins) 25. ♘h7+ ♔g7 26. ♖e7+ ♗f7 and now 27. ♖xf7+ ♔xf7 28. ♕f6+ ♔e8 29. ♕e6+ ♔d8 30. ♕xg8+ ♔c7 31. ♕xa8 ♕e1+ 32. ♔c2 ♕e2+ 33. ♔c3 ♕e1+ 34. ♔b3 ♕d1+ 35. ♔b4 ♕d2+ 36. ♔a3 ♕xd3+ 37. b3 b4+ 38. ♔xb4 ♕d2+ unexpectedly leads to prepetual check. The only alternative is 27. ♘g5 ♖h8 28. ♖xf7+ ♔g8 29. ♖h7 ♕c7+! 30. ♖xc7 ♖xh4, but in view of White's poorly placed knight it it doubtful that he can claim any advantage.

5c) 19... ♘xe6! 20. dxe6 (20. ♕f6 ♗xd5 21. ♖xe6+ ♗xe6 22. ♕xe6+ is a draw) with a position so complicated as almost to defy analysis:

5c1) 20... ♖c8?! is probably bad after 21. f5 ♕xa2 22. ♕f6 ♖c7 23. fxg6 ♕a1+ 24. ♔d2 ♕a5+ 25. c3 ♕a2

(continued onto next post)

Jan-17-07  Themofro: Absolutely brilliant.
Jun-06-07  wolfmaster: The game or MorphyMatt?
Apr-20-09  GreenArrow: In 1972 Nd5 and Rxe6 might have been spectacular, but now it has been proved to be just wrong. Kasparov disagrees with Nunn's analysis, instead praising 12...Nd5! Here white's attack runs out of steam, whereas 12...exd5 gives him a continuing attack. 14. fxg5 is just plain worse, so 14.Rxe6 is more or less forced but the known refutation is ...Qb6 (aiming at e3) instead of Ljubojevic's ...Qa5 and the attack doesn't work. Therefore 12.Nd5? is more or less redundant now in favour of 12.Qg3 when after 12...b4 (forced) you get to play 13.Nd5 anyway, where it is correct.
Apr-20-09  GreenArrow: <wolfmaster> Well MorphyMatt's analysis is entirely plagarised from 'The World's Greatest Chess Games' by Nunn, Emms and Burgess, so presumably the game
Nov-24-10  rwbean: "The World's Great Chess Games" is from 1998 ... they say 18 ... Nc5 is the only move, now any program at all finds 19. Nxc5 dxc5 20. d6 Qd8 21. Re2+ Kf8 22. Qh6+ Rg7 23. Re7 and Black is dead (over +2 in Rybka 4 within seconds)! So it was a waste of time typing out all that analysis, sorry.

18 ... Kf7 seems to draw, contrary to WGCG, after 19. Re2 Nf6 20. Qh6 Ke7 21. Nd4+ Kd8 22. Qh4 Rf8 23. Ne6 Kd7 24. Qh3, then instead of 24... Rfb8 in the book, when White actually has a mate in 11 with 25. Ng5, Rybka suggests 24... Rfe8 25. Ng7+ Kc7 26. Nxe8+ Rxe8 27. Rxe8 Nxe8 28. Qxh7 Kb8 29. b3 (to prevent Qe1#) Bxd5 30. Qxg6 Bc6 and Black seems to get a perpetual check one way or another.

May-12-12  YoungEd: This is an exciting game, to be sure! One thing that strikes me toward the end of the game is how White's g-pawn is so important. It's completely unassailable even though nothing defends it! A piece of chess beauty, in a way.
Premium Chessgames Member
  Breunor: Stockfish agrees with rwbean; 18 Kf7 is even:

1) =0.00 (24 ply) 18...Kf7 19.Re2 Nf6 20.Qh6 Ke7 21.Nc5+ Kf7 22.Ne6

18 Nc5 is not a saving move, as Honza said years ago:

1) +2.76 (20 ply) 19.Nxc5 dxc5 20.d6 Qd8 21.Re2+ Kd7 22.Re7+ Kc8 23.Qxc5+ Kb8 24.Rxh7 Ra7 25.Be4 Rf8 26.Qxa7+ Kxa7 27.Rxb7+ Ka8 28.Rd7+ Kb8 29.Rxd8+ Rxd8 30.Bxg6 Rxd6 31.f5 Rd8 32.g4 Rh8

18 Nf8 Is considered about the same:
1) +2.52 (22 ply) 19.Nxf8 Qd8 20.Nxh7 Qxg5 21.fxg5 O-O-O 22.Nf6 Rg7 23.Re2 Kc7 24.Re8 Bc8 25.h4 Bd7 26.Re3 Rf8 27.Kd2 Rff7 28.Kc3 Kd8 29.Kd4 Re7 30.Rxe7 Kxe7 31.g4 Kd8 32.a3 Kc7

The computer gives 12 Nd5 a negative score:

1) -0.82 (24 ply) 12...exd5 13.Nf5 Bf8 14.exd5+ Kd8 15.Nd4 Qc5 16.Nb3 Qb6 17.Bf5 Kc7 18.Bh4 b4 19.Kb1 Kb8 20.c4 bxc3 21.Qxc3 a5 22.Bxd7 Nxd7 23.Re8+ Ka7 24.Rxa8+ Kxa8 25.Nxa5 Qc5 26.Qd2 Qb5 27.Bf2 Qa4 28.b3 Qe4+ 29.Ka1 h6 30.Nxb7

I think the benefit of moves like this is that when playing a human and not a computer, this kind of initiative can be powerful. 12 Qg3 is listed as even.

However, I don't think we can say 12 Nd5 is 'correct'

However, white gets the advantage after ... Nxd5:

1) +1.10 (18 ply) 13.exd5 Nc5 14.Bxe7 Qxe7 15.Nf5 Qf8 16.b4 Na4 17.Qe3 O-O-O 18.dxe6 fxe6 19.Nd4 Nc3 20.Nxe6 Qf6 21.Nxd8 Rxd8 22.Bxh7 Nxd1 23.Kxd1 Bxg2 24.Qa7

In looking at some of the moves, though, I find Stockfish somewhat unreliable; it gives a score, then after the next move in the original sequence, the score is drastically different. Of course I can run the computer longer, but with such complex positions, even the computers seem to have trouble.

Aug-21-18  offramp: <MorphyMatt: ...(continued onto next post)>

I wonder what happened.

Aug-21-18  Ironmanth: Whoa, holy crap...I really don't understand this game, at least first time through. Intense! Great game regardless. Thanks chessgames.
Aug-21-18  Howard: Chess World Championship 1972 claimed that 15...Qb6! would have won for Black, but then that was back in '73...

This game was given in reference to Game 15 of the match.

Aug-21-18  Strelets: You know it's a game between these two when a declined piece sacrifice is followed by a rook sac two moves later.
Premium Chessgames Member
  AylerKupp: <Breunor> You are not letting Stockfish run nearly long enough. Because (?) of the way it aggressively prunes its search tree you need to let it run to search depths of at least the high 30 plies or (preferably) the low 40 plies in order to have any confidence in its evaluations. Otherwise you will see what you are seeing, wildly changing evaluations and move rankings between search plies.

This is a "feature" of Stockfish's aggressive search tree pruning which allows it to reach deeper search depths in a given amount of time than all the other major engines. It's a tradeoff, the usual "you don't get something for nothing."

Premium Chessgames Member
  thegoodanarchist: <offramp: <MorphyMatt: ...(continued onto next post)>

I wonder what happened.>

Old habits die hard!

Aug-21-18  cormier:

click for larger view

Analysis by Houdini 4: d 21 dpa done

<1. = / + (-0.54): 15...Qb6> 16.Qh5+ g6 17.Qxg5 Qe3+ 18.Kb1 Kf7 19.Qh6 Rag8 20.Qh4 Bxd5 21.Ng5+ Kg7 22.Re1 Qb6 23.Re7+ Kf8 24.Ne6+ Bxe6 25.Rxe6 Rg7 26.a3 Rhg8 27.f5 gxf5 28.Bxf5 Rf7 29.Qh6+ Rgg7 30.Rxd6 Qg1+ 31.Ka2 Qc5 32.g4 Rxf5 33.gxf5 Qxf5 34.Rxa6 Kg8 35.Qd2 Qe4 36.Rd6 Rg2 37.Qc3 Nf8 38.Qb3+ Qc4 39.a4 Qf7 40.Qxf7+ Kxf7 41.axb5 Rxc2

2. + / - (1.27): 15...Qa5 16.Qh5+ g6 17.Qxg5 Nf8 18.Qf6 Nxe6 19.dxe6 Rf8 20.Qg7 0-0-0 21.e7 Rxf4 22.exd8Q+ Qxd8 23.g3 Rf2 24.Qxh7 g5 25.Re1 Kb8 26.Kb1 Rf8 27.b3 Re8 28.Rf1 Bc8 29.Qf7 Re5 30.Qf2 Qc7 31.Kb2 Kb7 32.Qf3+ Kb8 33.a3 g4 34.Qf2 Re7 35.Qd4 Qc5 36.Qf6 d5 37.b4 Qc7

Aug-22-18  cormier:

click for larger view

Analysis by Houdini 4: d 27 dpa done

<<<1. = (0.00): 10...h6> 11.Bh4> 0-0> 12.Rhe1 Re8 13.Qg3 Nh5 14.Qf2 Nhf6 15.Qg3 Nh5

<<<2. = (0.00): 10...b5> 11.Rhe1> Bb7 12.Qg3 h6 13.Bxf6 Bxf6 14.Bxb5 axb5 15.Ndxb5 Qb6 16.Rxd6 Bc6 17.e5 Be7 18.Qxg7 Rf8 19.f5 Qf2 20.Rdd1 Rc8 21.Nd6+ Bxd6 22.exd6 Qxf5 23.Qxh6 Qf6 24.Qd2 Rh8 25.g3 Rh5 26.g4 Rh4 27.g5 Qg6 28.Kb1 Kf8 29.Qf2 Qxg5 30.Rxe6 Rf4 31.Qg3 Rg4 32.Qf2 Rf4 33.Qg3

Aug-22-18  cormier:

click for larger view

Analysis by Komodo 9
12...exd5 13.Nf5 Kf8 14.Qg3 dxe4 15.Bxe4 Bxe4 16.Rxe4 Qc5 17.Bh6 Nxe4 18.Qxg7+ Ke8 19.Qxh8+ Nf8 20.Bxf8 Bxf8 21.Qxh7 Rc8 22.Nd4 d5 23.Kb1 Rc7 24.Qh8 b4 25.g3 Kd8 26.Rd3 Kc8 27.a3 Kb7 28.axb4 Qxb4 29.Qh5 Qc5 30.Qh8 Ka7 31.Qe5 Be7 - / + (-1.00) Depth: 25

Aug-22-18  cormier:

click for larger view

Analysis by Komodo 9 : D 23

1. = (-0.07): 12.Kb1 h6 13.Qh3 Nc5 14.e5 dxe5 15.fxe5 Nd5 16.Nxd5 Bxd5 17.Bxe7 Qxe7 18.Be2 0-0 19.Bf3 Rad8 20.Qg3 Qc7 21.Nb3 Rfe8 22.Bxd5 Rxd5 23.Rxd5 exd5 24.Qc3 Ne6 25.Qxc7 Nxc7 26.Nc5 Kh7

2. = (-0.13): 12.Qh3 b4 13.Na4 0-0-0 14.Kb1 Nc5 15.e5 Nxa4 16.exf6 gxf6 17.Bh6 Kb8 18.g4 Nc5 19.Qh5 Bf8 20.Bxf8 Rhxf8 21.Qh6 e5 22.Nf5 Rg8 23.h3 Ne6 24.Qxf6 Nxf4 25.Be4 d5 26.Bd3

3. = (-0.17): 12.a3 h6 13.Qh3 Nc5 14.Kb1 0-0-0 15.Bxf6 Bxf6 16.Qe3 Kb8 17.Be2 Rc8 18.Bg4 Nd7 19.Be2 g6 20.g3 Nb6 21.Rf1 h5 22.Rf3 Rhd8 23.Qg1 Ka8 24.h4 Nd7 25.Nb3 Nc5

Aug-22-18  cormier:

click for larger view

Analysis by Komodo 9

10.Bxf6 Bxf6 11.Kb1 h6 12.h4 h5 13.Be2 g6 14.g3 0-0 15.Nb3 b5 16.e5 Bb7 = (0.18) Depth: 12
10.Bxf6 Bxf6
= (0.04 --) Depth: 13

10.f5 Ne5 11.Qh3 Nfg4 12.Bxe7 Qxe7 13.Qg3 0-0 14.Be2 Nf6 15.fxe6 Bxe6 16.Nf5 Bxf5 17.exf5 Rac8 18.Rhe1 Rfe8 19.Bf3 b5 20.Kb1 Qc7 21.Re2 Nxf3 22.Qxf3 Re5 23.Rxe5 dxe5 24.a3 h6 = (0.11) Depth: 24

10.f5 Ne5
= (0.01 --) Depth: 25

10.g4 b5 11.Bxf6 gxf6 12.a3 Rb8 13.Be2 b4 14.axb4 Rxb4 15.Rhf1 Qb6 16.Nb3 Bb7 17.Nd2 0-0 18.b3 Rc8 19.Nc4 Qc5 20.Qf2 Qc7 21.h4 Nc5 22.Qf3 Qc6 23.g5 Nxe4 24.Nxe4 Qxe4 25.gxf6 Bxf6 = (0.11) Depth: 27

Aug-22-18  cormier:

click for larger view

Analysis by Komodo 9.02 32-bit: 29 done

''''1. = (0.13): 9...h6' 10.Bh4' Nbd7' 11.a3' b5' 12.Bxf6 Nxf6 13.g4 g6 14.f5 e5 15.Nb3 gxf5 16.gxf5 Bb7 17.Kb1 Rg8 18.Bg2 0-0-0 19.Qe2 Qb6 20.Bf3 Kb8 21.Rhe1 Rc8 22.Rd3 Rg5 23.Red1 Rg1 24.Rxg1 Qxg1+ 25.Ka2 Ka8 26.Bh5

2. = (0.19): 9...Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.Bg2 Rb8 13.g5 Nd7 14.Kb1 0-0 15.h4 b4 16.Nce2 Bb7 17.h5 Rbc8 18.Qg4 Nc5 19.f5 e5 20.f6 exd4 21.fxe7 Qxe7 22.h6 g6 23.Rxd4 a5 24.Rhd1 Qe5 25.c3 bxc3

3. + / = (0.31): 9...Bd7 10.e5 dxe5 11.fxe5 Nd5 12.Bxe7 Nxe7 13.Qg3 0-0 14.Bd3 Nbc6 15.Nf3 h6 16.Kb1 Rad8 17.a3 b5 18.Ne4 b4 19.a4 a5 20.Nd6 Nf5 21.Bxf5 exf5 22.Rhf1 Ne7 23.Nd4 Ng6 24.N4xf5 Bxf5 25.Nxf5 Rxd1+ 26.Rxd1 Re8 27.Rd6 Rxe5

Aug-22-18  cormier:

click for larger view

Analysis by Komodo 9.02 32-bit: d 29

1. = (0.08): 8...Nbd7 9.0-0-0 Qc7 10.Bxf6 Bxf6 11.g4 Be7 12.Bd3 b5 13.g5 Nc5 14.Kb1 b4 15.Nce2 0-0 16.h4 Bb7 17.h5 Rac8 18.Rhg1 f5 19.gxf6 Bxf6 20.h6 g6 21.Qh3 Qd7 22.Qe3 e5 23.Nb3 Kh8 24.Nxc5 Rxc5 25.f5

2. = (0.18): 8...Qc7 9.0-0-0 Nbd7 10.f5 Ne5 11.Qh3 Nfg4 12.Bxe7 Qxe7 13.Qg3 0-0 14.Be2 Nf6 15.fxe6 fxe6 16.Nf3 Nf7 17.e5 dxe5 18.Nxe5 b5 19.Nxf7 Rxf7 20.Bf3 Bb7 21.Rhe1 Bxf3 22.gxf3 b4 23.Na4 Rc8 24.Kb1 Qc7 25.Qxc7 Rfxc7 26.Nb6 Re8

Premium Chessgames Member
  PawnSac: <GreenArrow: In 1972 Nd5 and Rxe6 might have been spectacular, but now it has been proved to be just wrong. Kasparov disagrees with Nunn's analysis, instead praising 12...Nd5! Here white's attack runs out of steam, whereas 12...exd5 gives him a continuing attack. 14. fxg5 is just plain worse, so 14.Rxe6 is more or less forced but the known refutation is ...Qb6 (aiming at e3)>

The "refutation" to which GreenArrow refers is here..

Z Pioch vs K Pytel, 1973

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