Author: Eelco de Groot
Date: 05:20:44 09/08/05
Can computers play good opening moves? This position came up in a game that was
used for Michael Gurevichs's testposition No.53 in CSS-forum. The source is a
game Beliavsky-Romanishin, not very recent, played in 2000. But I looked a bit
at the opening, Kings Indian, I don't know much about that.
1. Nf3 Nf6 2. c4 d6 3. Nc3 g6 4. d4 Bf5 King's Indian E61
In the game now followed 5.Nh4, I do not know what the currently considered best
variation is.
Alternatives?
Shredder's score for 5.Ng5 is too optimistic I think, but Shredder's choice
seems solid, the moves after 5.Ng5 do not change if Shredder looks further in
the line and the score goes to +1! Pro Deo thinks it is about +0.40 then around
move 9.O-O.
Pro Deo 1.1 Vulcan chooses 5.h3!?, followed by g4 it leaves a possible the
kingside castling postion a bit open, not a move that a human would soon make?
Chess Tiger would maybe think Black is better, and h3-g4 only a weakening of
White's position. I haven't tested that. Before playing 5.h3 the main line move
was 5.Bf4 and that is also Jeroen Noomen's book move. In combination with g3 and
Bg2, O-O it is probably a bit safer than h2-h3, g2-g4. Or should White play Bd3?
Does anyone know which move is considered best these days?
Jeroen Noomen's book for Pro Deo only has 5.Bf4 here so I suppose that is very
close to the current state of theory.. Shredder's main book does have 4.Bf5 but
doesn't have moves after this position. I don't have an up to date database
myself on my harddisk, as the game was from 2000 it is possible that the
variation has been found earlier or the whole variation just isn't seen as very
reliable for Black anymore. Or maybe that applies to the whole King's Indian..
Any comments, about these Kings Indian computer-novelties?
Regards, Eelco
[Event "Leonid Stein mem"]
[Site "Lvov"]
[Date "2000.05.19"]
[Round "7"]
[White "Beliavsky, Alexander G"]
[Black "Romanishin, Oleg M"]
[Result "1-0"]
[ECO "E61"]
[WhiteElo "2640"]
[BlackElo "2578"]
[Annotator "Hazai"]
[PlyCount "123"]
[EventDate "2000.05.12"]
[Source "ChessBase"]
[SourceDate "2000.07.27"]
1. Nf3 Nf6 2. c4 d6 3. Nc3 g6 4. d4 Bf5 {This variation enjoys certain
popularity these days. Black is fighting against e4 avoiding the the long
theoretical discussions.} 5. Nh4
-------------------------------------------------------------------------------
Shredder plays here the surprizing alternative move 5.Ng5 after some deep
analysis:
[D]rn1qkb1r/ppp1pp1p/3p1np1/5b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -
Shredder 9 UCI
Shredder 9.02 UCI by Stefan Meyer-Kahlen, www.shredderchess.com
CPU0: AuthenticAMD x86 Family 15 Model 31 Stepping 0 2009 MHz
GUI: Eindspeldatabanken met 5 stukken gevonden! [Buffer: 8 MB + intern 2.33 MB]
Engine: Shredder 9 UCI (200 MB)
gemaakt door Stefan Meyer-Kahlen
9/20 0:01 +0.47 5.Lg5 Lg7 6.e3 (287.675) 216
10/20 0:02 +0.29 5.Lg5 Lg7 6.e3 Pe4 7.Pxe4 Lxe4 8.Pd2 Lc6 9.Dg4 h6 10.Lh4
(434.305) 217
10/20 0:02 +0.30++ 5.h3 (494.736) 213
10/22 0:02 +0.48 5.h3 h5 6.e3 Pc6 7.Ld3 Lg7 8.O-O Lxd3 9.Dxd3 Pb4 10.Dd1
(572.719) 216
11/24 0:03 +0.44 5.h3 h5 6.e3 Pc6 7.Ld3 Lxd3 8.Dxd3 Lg7 9.O-O Pb4 10.Dd1 c6
(795.402) 218
12/24 0:07 +0.48 5.h3 Lg7 6.g4 Le4 7.Lg2 Lxf3 8.Lxf3 Pc6 9.Lf4 (1.531.094)
218
13/25 0:12 +0.46 5.h3 Lg7 6.g4 Le4 7.Lg2 Pc6 8.Pxe4 (2.755.003) 213
13/26 0:19 +0.47++ 5.Ph4 (4.124.670) 210
13/29 0:28 +0.47 5.Ph4 Ld7 (5.851.705) 208
14/29 0:36 +0.24 5.Ph4 Ld7 6.e4 Lg7 7.Le2 O-O 8.Pf3 c5 9.dxc5 Lc6
(7.642.234) 207
14/29 0:38 +0.25++ 5.h3 (7.978.698) 206
14/29 0:43 +0.50 5.h3 Lg7 6.g4 Le4 7.Lg2 Lxf3 8.Lxf3 Pc6 9.Da4 O-O 10.Lxc6
bxc6 11.Dxc6 Pd7 12.d5 Pe5 13.Da4 (8.929.066) 206
15/28 1:02 +0.52 5.h3 Lg7 6.g4 Le4 7.Lg2 Lxf3 8.Lxf3 Pc6 9.O-O O-O 10.Lg5 e6
11.e3 Dd7 12.Dd3 a6 (12.825.739) 206
16/32 1:43 +0.47 5.h3 Lg7 6.Db3 Lc8 (21.170.709) 203
16/32 1:56 +0.48++ 5.Lg5 (24.378.038) 208
16/32 2:22 +0.62 5.Lg5 Lg7 6.e3 Pc6 7.Ld3 Dd7 8.O-O O-O 9.Lxf6 exf6 10.Lxf5
Dxf5 11.Pd5 Tfc8 12.Tc1 De4 13.Db3 Tab8 (35.216.695) 247
17/36 2:55 +0.53 5.Lg5 Lg7 6.e3 Pc6 7.d5 Pe5 (49.505.502) 282
18/36 4:53 +0.61 5.Lg5 Lg7 6.e3 c6 7.Ld3 Pbd7 8.O-O O-O 9.Tb1 Lxd3
(98.055.288) 334
19/38 7:43 +0.60 5.Lg5 Lg7 6.e3 Pe4 7.Pxe4 Lxe4 8.Ld3 Lxd3 9.Dxd3 Dd7 10.O-O
Pc6 11.Db3 O-O-O 12.d5 Pe5 13.Pxe5 Lxe5 (166.612.814) 359
20/44 13:30 +0.59 5.Lg5 Lg7 6.e3 c6 7.Ld3 Pbd7 8.O-O O-O 9.Lxf5 gxf5 10.Dc2
e6 11.e4 fxe4 12.Pxe4 d5 13.Pd6 Dc7 14.c5 (308.504.179) 380
21/42 24:33 +0.56 5.Lg5 Lg7 6.e3 c6 7.Ld3 Pbd7 8.O-O O-O 9.Lxf5 gxf5 10.Dc2
Da5 11.Lf4 Ph5 12.Pe2 Pxf4 13.Pxf4 e6 14.Pg5 (584.221.142) 396
21/42 34:17 +0.57++ 5.Pg5 (825.529.789) 401
21/43 46:16 +0.71 5.Pg5 h6 6.e4 Lg4 7.Pf3 Lg7 (1.122.902.750) 404
22/45 60:37 +0.68 5.Pg5 h6 6.e4 Lg4 7.Pf3 Lg7 8.Le2 Pfd7 9.O-O c5 10.Le3 Lxf3
11.Lxf3 Pc6 12.dxc5 Pxc5 13.Tc1 Pe5 (1.479.947.543) 406
23/46 94:07 +0.73 5.Pg5 h6 6.e4 Lg4 7.Pf3 Lg7 8.Le2 Pfd7 9.O-O c5 10.Le3 Lxf3
11.Lxf3 Pc6 12.d5 Pce5 13.Le2 Pb6 14.Db3 h5 (2.309.691.667) 408
Pro Deo 1.1 Vulcan {9k16h5}
1.Nf3 Nf6 2.c4 d6 3.Nc3 g6 4.d4 Bf5
rn1qkb1r/ppp1pp1p/3p1np1/5b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -
00:00:00 1.00 -0.30 5.e4 Nxe4 6.Nxe4 Bxe4
00:00:00 1.02 0.36 5.Bg5
00:00:00 1.03 0.39 5.Bf4
00:00:00 2.00 0.09 5.Bf4 Bg7
00:00:00 2.20 0.25 5.Qb3 b6
00:00:00 3.00 0.36 5.Qb3 b6 6.Bf4
00:00:00 4.00 0.15 5.Qb3 b6 6.Qb5 c6
00:00:00 4.02 0.21 5.Nh4 Bg4 6.h3 Be6
00:00:00 4.14 0.25 5.Ng5 Bg7 6.e4 Bg4
00:00:00 5.00 0.45 5.Ng5 Bd7 6.e4 Bh6
00:00:00 6.00 0.37 5.Ng5 Bd7 6.e4 h6 7.Nf3 Bg7
00:00:00 7.00 0.41 5.Ng5 h6 6.e4 Bc8 7.Nf3 Bg7
00:00:00 8.00 0.37 5.Ng5 h6 6.e4 Bg4 7.Nf3 e5 8.Be2 Nc6
00:00:00 9.00 0.37 5.Ng5 h6 6.e4 Bg4 7.f3 Bd7 8.Nh3 e5 9.Nd5 Nxd5
00:00:01 10.00 0.34 5.Ng5 h6 6.e4 Bg4 7.Nf3 c5 8.Be2 Bg7 9.Bf4
cxd4 10.Nxd4
00:00:03 11.00 0.29 5.Ng5 h6 6.e4 Bg4 7.Nf3 e5 8.Be3 exd4 9.Bxd4
Nc6 10.Nd5 Nxd4
00:00:06 11.04 0.36 5.Bf4 Bg7 6.e3 Nh5 7.Bg3 Nc6 8.Be2 Nxg3 9.hxg3
h6 10.Nd5
00:00:09 12.00 0.32 5.Bf4 Bg7 6.e3 Nh5 7.Bg3 Nc6 8.Bd3 Bxd3 9.Qxd3
Nb4
00:00:21 13.00 0.36 5.Bf4 Bg7 6.e3 Nh5 7.Bg3 Nc6 8.Be2 Nxg3 9.fxg3
Bh6 10.e4 Bg4 11.Nd5
00:00:49 14.00 0.36 5.Bf4 Bg7 6.e3 Nh5 7.Bg3 Nc6 8.Be2 Nxg3 9.hxg3
h6 10.Nd2 O-O 11.Bg4 e6 12.Bxf5 exf5
00:02:19 15.00 0.31 5.Bf4 Bg7 6.e3 Nh5 7.Bg5 h6 8.Bh4 c5 9.Bd3
cxd4 10.Nxd4
00:05:05 15.15 0.36 5.h3 Bg7 6.g4 Bd7 7.Bg2 Nc6 8.O-O O-O
00:08:31 16.00 0.34 5.h3 Bg7 6.g4 Bd7 7.Bg2
00:20:00 17.00 0.36 5.h3 Bg7 6.g4 Bd7 7.Bg2
00:56:25 18.00 0.33 5.h3 Bg7 6.g4 Be4 7.Nxe4
The rest of the game continued:
-------------------------------------------------------------------------------
5..Bd7 {In some lines Black can win a tempo putting his B on d7 if the N
retreats to f3.} 6. e4 (6. g3) 6... e5 (6... Bg7
7. Be2 (7. f4 $6 {is premature because of the quick response in the [+].} e5 $1
8. Nf3 exd4 9. Nxd4 O-O 10. Be2 Re8 {>< e4} 11. Bf3 Nc6 $15) 7... O-O 8. Nf3 e5
(8... c5 9. d5 Na6 10. O-O {is a favourable Benoni position for White.}) (8...
Qe8 $6 {is strongly met by} 9. e5 $1 {and there is no retreat to d7.} dxe5 10.
Nxe5 Bf5 11. Bf3 $16 {- Sosonko-Riemersma, NLD-ch 1997 CBM 60}) 9. O-O {
- 6...e5} (9. Be3 exd4 10. Nxd4 Nc6 {
gaining a tempo in comparision to the normal exd4 lines.}) (9. d5 a5 {
/\ Na6 and the B is well-posted on f5.})) (6... c5 7. d5 Bg7 (7... e6 8. Nf3
exd5 9. cxd5 (9. exd5 Bg7 10. h3 (10. Bd3 O-O 11. O-O Bg4) 10... O-O 11. Bd3
$14) 9... Bg7 10. Nd2 O-O 11. Be2 {and here the B is in a way of the N.}) 8.
Nf3 O-O 9. h3 Na6 (9... b5 $6 {is not a correct version of the Benko Gambit.}
10. cxb5 a6 11. bxa6 Nxa6 12. Bc4 Qa5 13. O-O Rfb8 14. e5 $1 {
White grabs the |^ in the [+].} Ne8 15. Qe2 Nac7 16. Bg5 Bf8 {Sad, but true.}
17. Rac1 $16 {Epishin-Shirazi, Philadelphia op 1989})) 7. Nf3 exd4 $1 (7... Bg7
8. Be2 exd4 $1 {- 7...exd4} (8... Nc6 9. d5 {- 7..Nc6}) (8... O-O 9. O-O Nc6
10. d5 {- 7...Nc6} (10. Be3 $5 {- Khalifman-I.Sokolov, Parnu 1996 CBM52}))) (
7... Nc6 $6 8. d5 Ne7 9. c5 $1 (9. Be2 Bg7 10. O-O O-O {
and Black has an extra Bd7 compared to the main King's Indian lines.} 11. Ne1 (
11. Nd2 a5 $1 $13) 11... Ne8 12. f3 f5 13. Be3 f4 (13... Nf6 14. c5 Rf7 15. Qb3
$16) 14. Bf2 h5 (14... g5 15. c5 dxc5 $1 (15... h5 16. cxd6 cxd6 (16... Nxd6
17. Nd3 $14) 17. Qb3 $14) 16. Bxc5 Nd6 17. Nd3 h5 {- 14...h5} (17... b6 $6 18.
Bf2 Qe8 19. a4 Qg6 (19... h5 20. h3 Kh8 21. a5 $14) 20. a5 h5 (20... g4 $6 21.
fxg4 Nxe4 22. Nxe4 Qxe4 23. axb6 cxb6 (23... axb6 24. Rxa8 Rxa8 25. d6 $16) 24.
Bf3 Qg6 25. Re1 $16 {and Black has lost the control of >< e4.}) 21. h3 $14 {
with slightly better chances in a very complicated middlegame.})) 15. c5 dxc5
16. Bxc5 Nd6 17. Nd3 (17. a4 $1 {/\ Nb5}) 17... g5 18. Kh1 Ng6 19. a4 $1 $36 {
<<} (19. Rc1 Bh6 $1 20. Rc2 Kh7 21. Bf2 b6 22. Nb4 a5 23. Nc6 $14 {
D.Gurevich-V.Georgiev, Bermuda 1998})) 9... Bg7 10. Qb3 (10. cxd6 cxd6 11. Nd2
O-O 12. Be2 Ne8 13. a4 {(Polugaevsky-De Firmian, Biel 1989 CBM 14)} Bh6 $1 14.
h4 f5 $13 {Polugaevsky}) 10... Qb8 11. cxd6 cxd6 12. Bb5 O-O 13. a4 Bg4 14. Nd2
Nh5 15. a5 Bc8 {The B cannot find his right place on the h3-c8 /^.} 16. Nc4 f5
17. Qb4 {>< d6} Rd8 18. f3 f4 19. b3 {/\ Ba3} Bf8 20. Ba3 g5 21. Qxd6 $3 $18 {
Psakhis-Wolff, New York 1992}) 8. Nxd4 Bg7 9. Be2 O-O 10. O-O {
Now Black's extra Bd7 has it's importance!} Nc6 ({or} 10... Re8 11. f3 Nc6 12.
Nc2 Nh5 13. g4 Be5 $1 $11 {- 10...Nc6}) 11. Be3 (11. Nc2 Re8 12. f3 Nh5 13. g4
Be5 $1 {This is the point here.} (13... Nf6 {is passive.} 14. Bg5 (14. Be3 h5 (
14... a6 $6 {is out of question.} 15. Qd2 Ne5 16. Rad1 Be6 17. b3 b5 18. cxb5
axb5 19. g5 Nfd7 20. Bxb5 $16 {and Black has nothing to show for the lost
material, I.Sokolov-Hodgson, Groningen 1994.}) 15. g5 Nh7 $132) 14... h6 15.
Bh4 (15. Be3 h5 {- 14.Be3}) 15... g5 {
White gets the dark squares, but loses the light ones.} 16. Bg3 Ne5 17. Qd2 $14
) 14. Rf2 (14. Nd5 Bxh2+ $1 $11) (14. gxh5 Bxh2+ $1) 14... Nf4 {
building up the blockade on the dark squares.} 15. Bf1 Ne7 16. Be3 b6 17. Qd2
g5 {>< f4 and e5} 18. h4 Neg6 $13 {Zagorkis-Bielczyk, Hlohovec, op 1994}) 11...
a6 (11... Nxd4 {This exchange works only for White.} 12. Bxd4 Bc6 13. b4 b6 14.
Re1 Re8 15. f3 $1 ({On} 15. Bf1 $2 {Black can already take the P.} Bxe4 $1 16.
Bxf6 Qxf6 17. Nxe4 Qxa1 $19) (15. Bf3 $6 {puts the B to an inferior place.} Nd7
16. Bxg7 Kxg7 17. Nd5 Bb7 {/\ c6} 18. a3 (18. Qd4+ Ne5 19. Be2 c5 $13) 18... c6
19. Nc3 Qf6 20. Qd2 Rad8 21. Rad1 {(Kouatly-Van der Wiel, Budel zt 1987)} Ne5
$1 22. Be2 g5 $13 {with pressure on the dark squares, Kouatly.}) 15... Nd7 16.
Nd5 $14) (11... Qe7 12. f3 Rae8 13. Qd2 {This is the ideal set-up for White.}
Nxd4 14. Bxd4 Bc6 15. Rac1 Nh5 16. Bxg7 Nxg7 17. b4 b6 18. Nd5 $14 {
Ch.Gabriel-P.Blatny, BL 1990}) (11... Re8 $142 $1 {
is the normal and simple plan here.} 12. f3 Nh5 $1 (12... a5 $6 {weakens >< b5}
13. Ndb5 $1 Ne5 14. Qd2 Be6 15. b3 a4 16. Rac1 axb3 17. axb3 Qb8 18. Rfd1 Rd8
19. Kh1 c6 20. Nd4 d5 {
This active freeing move creates weaknesses in Black's camp.} 21. cxd5 cxd5 22.
Nxe6 fxe6 23. exd5 exd5 24. Nb5 $16 {
and the isolated P is properly blockaded, K.Urban-Benoit, Bagneux 1993.}) 13.
Qd2 Nf4 (13... f5 $5) 14. Rfd1 (14. Nxc6 Nxe2+ 15. Nxe2 bxc6 16. Rad1 Be6 17.
b3 c5 18. Nf4 Qc8 $11 {Cebalo-Loncar, Slovenia 1995}) 14... Nxe2+ 15. Ncxe2 {
with only slightly better chances for White.}) 12. Nxc6 (12. Qd2 Re8 13. f3 $14
{is a consistant plan.}) 12... Bxc6 (12... bxc6 $5 {changing the P structure
was considerable, because now Black has some play in the [+].} 13. Qd2 Re8 14.
f3 c5 15. Rad1 Rb8) 13. f3 Qe8 $6 ({Still} 13... Re8 {was required.} 14. Qd2
Nd7 15. Rad1 Qe7 16. b3 $142 (16. Bd4 {leads to unnecessary exchanges after}
Bxd4+ 17. Qxd4 Qe5) (16. Nd5 Bxd5 17. Qxd5 $1 (17. cxd5 f5 $1) 17... b6 18. b3
a5 {fighting for the dark squares.}) 16... Kh8 (16... f5 $6 {
now weakens the a2-g8 /^.} 17. Nd5 $1 Bxd5 18. Qxd5+ Kh8 19. Qxb7 Nf6 20. Qc6
fxe4 21. f4 $16) 17. Nd5 Bxd5 18. Qxd5 Rab8 (18... b5 19. cxb5 axb5 20. Bxb5
Rxa2 21. Qc6 $14) 19. Ba7 Nf6 20. Qd2 Rbd8 21. Bd4 Nd7 {
and Black has enormous defensive resources.}) 14. Rc1 Rc8 15. b4 b6 16. Re1 {
This doesn't look very important for the moment.} (16. b5 $5 {
was interesting changing the P structure.} axb5 (16... Bb7 17. c5 $1 $16) 17.
cxb5 Bb7 18. Bc4 Qe5 19. Re1 $14) 16... Bb7 {avoiding b4-b5} 17. Bf1 Qe6 (17...
Nd7 18. Qd2 $14) 18. Qd2 Rfe8 (18... Nd7 19. Nd5 $14) 19. a3 Nd7 20. Nd5 Nf6 (
20... Ne5 21. Bd4 $14) 21. Rc2 Nxd5 $2 {Black has lost his temper.} (21... Nd7
{sitting and waiting looked more persistant}) 22. cxd5 $16 {
Now Black suffers from the backward P on the c <->.} Qd7 23. Rec1 b5 (23... f5
24. exf5 gxf5 25. Bd4 $16 {exchanging Black's active B.}) 24. Bd4 f5 {
Black has to do something, otherwise he will be pushed to the wall.} (24... Be5
25. f4 $16) 25. exf5 gxf5
Here is Michael's testposition 53, does the cmputer play 26.Qg5!
[D]2r1r1k1/1bpq2bp/p2p4/1p1P1p2/1P1B4/P4P2/2RQ2PP/2R2BK1 w - -
http://f23.parsimony.net/forum50826/messages/132405.htm
26. Qg5 {
Now there are many weaknesses in the black camp.} Bxd5 (26... Re7 27. Bd3 {
>< f5}) 27. Bd3 Be6 (27... Rf8 28. Bxg7 Qxg7 29. Qxg7+ Kxg7 30. Rxc7+ Rxc7 31.
Rxc7+ Kf6 32. Rxh7 $18) 28. Bxg7 Qxg7 29. Qxg7+ Kxg7 30. Rxc7+ Kf6 31. R7c6
Red8 {#} 32. Kf2 $1 {Black's pawns are in four islands.} h6 33. Ke3 Ke5 34. f4+
{and the K has to leave the [+].} Kf6 ({On the careless} 34... Kd5 $4 {follows}
35. Bb1 Rxc6 36. Rd1+ Kc4 37. Rd3 $18 {and the mate is inevitable.}) 35. Kd4 {
Now the white K reached the [+].} Ke7 36. R1c3 h5 37. Be2 h4 38. Rxa6 $18 {
White has a winning _|_ with a healthy P up.} Rxc3 39. Kxc3 Rg8 40. Bf3 Bc4 41.
Ra8 Rg6 42. a4 h3 (42... Bf1 43. axb5 Bxb5 44. Kd4 Bf1 45. Ra2 $18) 43. g3 Re6
44. axb5 Bxb5 45. Kd2 Bf1 46. Ra3 Bg2 47. Be2 ({Or simply} 47. Ra7+ Kf6 48. Be2
d5 49. b5 $18) 47... d5 48. b5 d4 49. Bc4 Rd6 50. Ra7+ Kd8 51. Ra6 Rd7 52. Rf6
Bd5 53. Bd3 Be4 54. b6 Ke7 55. Rh6 Rd8 56. b7 Rb8 57. Ba6 Kd7 58. Rxh3 Kc7 59.
Rh6 Rd8 60. Rg6 Kb8 61. h4 Ka7 62. h5 1-0
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