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Andrei Sokolov vs Viktor Antonovich Bologan
Jurmala (1991)
Czech Defense: General (B07)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
May-10-07  prinsallan: 14. Nd1 feels rather weak but I cant find out why, its just a gut feeling. I would have played a3, hopefully followed by b4.

Anyone who can tell me what is "wrong" with the text move and if my move would have been better or worse?

May-15-07  prinsallan: Anyone?
May-16-07  malthrope: <prinsallan: 14. Nd1 feels rather weak but I cant find out why, its just a gut feeling. I would have played a3, hopefully followed by b4. Anyone who can tell me what is "wrong" with the text move and if my move would have been better or worse?> and... <prinsallan: Anyone?>

Sorry for the delay <prinsallan> I was going to reply this morning but ran plum out of energy (blame the Mtel! tourney)...

It's an interesting position no doubt and I thought Viktor (or 'Viorel' as he likes to be called) had an excellent game and played some high-class chess moves. Especially the pawn break 24... f5! which seems to cement the advantage and wins for black. Your try of 14. a3 to support b4 could also become dangerous as then black is going to have the 'a5' break and white's problem of how to defend the 'b-pawn' or the 'a-pawn' (if bxa) is going to be a tough assignment...

For example 14. a3 Be6 (note the influence already on the weak 'b3' square as Fischer once said, "You've got to give squares to get squares." Now if 15. b4 is played here we then have the thematic break 15... a5 which is strong.

Now if A) 16. axb Rxa5 17. a4 (instead if 17. Nb1 then of course 17... b4) now 17... Bb4 looks strong (instead the try 17... b4 white has the defensive try 18. Nd1 followed by Nb2). However, looking at this line again [prior to posting] it might also work for example 17... b4 18. Nd1 Bb3 19. Nb2 Bc5! with the threat of Bd4 and after black plays the King up the rook on g8 is free to join in the action on the Q-side. Now back to 17... b4 18. Kd2 (looks like the best here) 18... Bxc3+ (instead if 18... Bb3 then just axb) 19. Kxc3 Rxa4 20. Rxa4 bxa with advantage to black if 21. Ra1 then 21... Bb3.

B) 16. Rb1 axb 17. axb Ra3 18. Kd2 (note the 'd3' pawn is hanging if the knight moves) 18... Bh6+ 19. Kc2 Here now 19... Ke7 I like best (to connect the rooks immediately) for if 20. Kb2 Rga8 21. Ra1 Rxa1 22. Rxa1 Rxa1 23. Kxa1 Be3 and I like this ending for black based on the potential of creating a passed 'b-pawn' with a well prepared c5 break. The bishops also have good scope and Nh5 is always answered by f5!

Anyway, there is a few sample lines for you to look over. As always the typing takes me the longest and I don't use an engine. Hope that was somewhat helpful for you! ;-) Regards, - Mal

May-16-07  prinsallan: Very thorough analysis. Thanks for a great line. I played it through and can't say I found any improvements for white. Thus I can only agree that a3 is also stomped rather nasty.

Once more: Thanks!

May-16-07  prinsallan: [Title "Prinsallan vs Chessmaster 2007.05.16"]
[Date "2007.05.16"]
[White "Prinsallan"]
[Black "Chessmaster"]
[Result "1/2-1/2"]

1. e4 d6
2. d4 Nf6
3. Nc3 c6
4. f3 e5
5. dxe5 dxe5
6. Qxd8+ Kxd8
7. Bc4 Ke8
8. Bg5 Nbd7
9. Nge2 b5
10. Bd3 Nc5
11. Bxf6 gxf6
12. Ng3 Nxd3+
13. cxd3 Rg8
14. a3 Be6
15. Nd1 Kd7
16. Rc1 Rd8
17. Ne3 Kc7
18. Ke2 Kb6
19. Rc3 a5
20. Rhc1 c5
21. Rg1 Bh6
22. Ngf5 Bg5
23. g3 Rd7
24. h4 Bxe3
25. Nxe3 a4
26. Rgc1 Rxg3
27. Rxc5 Ka5
28. Rb1 Rh3
29. Nc4+ Ka6
30. Rc6+ Ka7
31. Nd6 Rxh4
32. Rf1 h5
33. Rf2 Rh1
34. f4 Rh3
35. Nxb5+ Kb7
36. Rd6 Kc8
37. Rxd7 Kxd7
38. b4 axb3
39. f5 b2
40. fxe6+ fxe6
41. Rf1 Rh2+
42. Ke3 h4
43. a4 Rc2
44. Rb1 h3
45. Na3 Rc3
46. Nb5 Rc2
47. Na3 Rg2
48. Kf3 Rd2
49. Ke3 Rg2
50. Kf3 Rd2
51. Ke3 Rg2
1/2-1/2

I managed a draw vs chessmaster when I started with a3 and followed it with Nd1 (as was the textmove). Rather intressting game and I was near pulling a victory off but the black h-pawn became a menace ;/

May-16-07  malthrope: <prinsallan: Very thorough analysis. Thanks for a great line. I played it through and can't say I found any improvements for white. Thus I can only agree that a3 is also stomped rather nasty. Once more: Thanks!>

You're welcome <prinsallan> ! :-)

As I mentioned previously thought black had a great game... So, perhaps Andrei played correctly by trying to defend and fortify his position immediately. However, that too proved to tough a task with black having all the shots. Nice save in your game with Chessmaster! Very close there at the end and I saw no direct winning attempts for you in the late stages... ;-)

Perhaps nudge the comp next time to try in your revised line 14. a3 Be6 15. Nd1 Rc8 there (instead of 15... Kd7) as this looks more to the point of the position. Then black can to try for a latter Q-side advance of the pawns (same maneuver Kd7 > Kc7 > Kb6 which frees up d7 for the bishop if necessary and gets the King out of the way and supporting the pawn mass and crucial squares) having backed it up with Rc8 without loss of tempo. Naturally this is all done with hindsight as 15... Kd7 16. Rc1 Rd8 (as played by Chessmaster) brought about some very interesting complications late in the Endgame.

Of course this is why it also takes so long to attempt to understand chess - many trials and errors have be played out and charted by good players... Anyway, it's another chess game! ~lol~ :-) Regards, - Mal

May-21-07  prinsallan: Yeah, I think you are right. The Chessmaster cannot be compared to any human player and when Victor has a day like this it would probarbly end up 0-1 in any case. Hope you enjoyed my struggle vs the Chessmaster though.

Best Regards
-Prinsallan

Dec-11-12  jvasea1990: ( Houdini 2.0c w32
-0.07 (depth 20) 14.a4 b4 15.Nd1 h5 16.Kf1 h4 17.Nh5 Rg6 18.Ne3 Bc5 19.Nf5 Bxf5 20.exf5 Rh6 21.g4 Bd4 22.Rb1 Kd7 23.Kg2 Kc7 24.Rhc1 Rd8 25.Rc4 b3 26.h3)

( -0.11 (depth 20) 14.Rc1 Be6 15.Nd1 Rc8 16.b3 h5 17.Kf2 Bh6 18.Rc2 h4 19.Nf5 Bxf5 20.exf5 Ke7 21.Ne3 Bf4 22.Ng4 Rgd8 23.Rd1 Rd4 24.g3 Bg5 25.Kg2 hxg3 26.hxg3)

( -0.11 (depth 20) 14.Nd1 h5 15.Kf1 h4 16.Nh5 Rg6 17.Ne3 Bc5 18.Nf5 Bxf5 19.exf5 Rh6 20.g4 hxg3 21.hxg3 Kd7 22.Rc1 Bd4 23.b3 Rd8 24.Kg2 Kc7 25.g4 Kb7 26.b4 Be3)

( -0.20 (depth 20) 14.Kf1 Bd7 15.Nh5 Ke7 16.g4 Be6 17.Ng3 Kd7 18.Ke2 Bc5 19.Nh5 Ke7 20.Rac1 Bd4 21.Ng3 Rac8 22.b4 Rcd8 23.h4 a6 24.Nf5+ Bxf5 25.exf5)

Dec-11-12  jvasea1990: After 14. a3
Houdini 2.0c w32
-0.18 (depth 19) h5 15.O-O h4 16.Nf5 Be6 17.Rfd1 Rd8 18.Rac1 Rg5 19.Ne2 Bxf5 20.exf5 Kd7 21.d4 Kc7 22.d5 c5 23.Nc3 Kb6 24.d6 Rxd6 25.Nd5+ Kc6)

-0.17 (depth 19) Bc5 15.Rc1 Bd4 16.Rc2 Bd7 17.Kd2 Rd8 18.Nce2 Bb6 19.Rhc1 Rg6 20.f4 Ke7 21.f5 Rgg8 22.b4 a5 23.Kc3 axb4+ 24.axb4)

-0.15 (depth 19) Be6 15.Nd1 Rc8 16.Rc1 h5 17.Kf2 Bh6 18.Rc2 h4 19.Nf5 Bxf5 20.exf5 Ke7 21.Ne3 Rgd8 22.Rd1 c5 23.g3 Bxe3+ 24.Kxe3 Rd4 25.b3 hxg3 26.hxg3)

-0.09 (depth 19) Bd7 15.Rc1 Rd8 16.Nd1 h5 17.Kf2 Bh6 18.Rc2 h4 19.Nh5 Ke7 20.g4 a5 21.Ne3 Be6 22.Ke2 Rd6 23.Rhc1 Rc8 24.Rc5 a4 25.h3)

Dec-11-12  jvasea1990: Houdini 2.0c w32
-0.93 (depth 20) 24...f5 25.exf5 Rxf5 26.Rac1 Rc8 27.Nd2 b4 28.Ne4 Bd5 29.Rd2 Rg8 30.b3 Rg6 31.Rb1 Ke6 32.Rc2 Ke7 33.Rcc1 Rg8 34.Rc2 h3 35.g3 Rd8 36.f4

-0.87 (depth 20) 24...b4 25.Ne3 c5 26.Rac1 Kc6 27.Rd2 Kb5 28.Nc4 Bxc4 29.dxc4+ Kxa5 30.Ra1+ Kb6 31.Ra4 f5 32.exf5 Rxf5 33.Nc2 Rg5 34.Ne3 Rag8 35.Nd5+ Kb7 36.Kf1 R5g6 37.Ra1

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