Author: Kurt Utzinger
Date: 12:55:21 04/22/01
One of my hobbies is to play against strong computer programs without using any
anti computer strategy. And here is a game with my comments against the new
Chess Tiger 14. I am somewhat proud with the draw ... should I not?
Regards
Kurt
[Event "Human vs Computer 40/40"]
[Site "Wetzikon"]
[Date "2001.04.22"]
[Round "1"]
[White "Chess Tiger 14.0"]
[Black "Kurt Utzinger"]
[Result "1/2-1/2"]
[ECO "A88"]
[WhiteElo "2500"]
[BlackElo "1993"]
[Annotator "2001-04-22"]
[PlyCount "85"]
[EventDate "2001.04.22"]
{White: Chess Tiger 14.0 P_III 800/128, 48 MB hash 4-men TB's, cache size 16
MB, depth 4 Book: User Engine book ct.tbk Anti human play: not activated
Style: normal Time control: 40/40 + 40/40 } 1. d4 f5 {
My favourite defence against humans and computers.} 2. g3 Nf6 3. Bg2 g6 4. Nf3
Bg7 5. O-O O-O 6. c4 d6 7. Nc3 c6 8. d5 e5 9. dxe6 Bxe6 10. Qd3 {I was somewhat
relieved because 10.b3 leads too a more complicated game with better chances
for a computer program.} 10... Nbd7 11. Bf4 Nb6 12. b3 Ne4 {The usual reply in
this situation and automatically played. I became angry as the prepared move
was the seldom choosen continuation 12...d5.} 13. Nd4 {White last book move}
13... Nxc3 14. Nxe6 Qe7 15. Bd2 {
Being out of book, Chess Tiger 14 finds the best move.} 15... Qxe6 16. Bxc3
Bxc3 {
According to my analysis the exchange of bishops is better than 16...Rae8.} (
16... Rae8 17. Bxg7 Kxg7 18. e3 Rf6 19. Rad1 Qe5 20. Rd2 Nd7 21. Rfd1 Nc5 22.
Qc2 Ne4 23. Rd4 Ng5 24. Qd2 Nf7 25. b4 Qe7 26. Qc3 Kg8 27. Qa3 a6 28. b5 axb5
29. cxb5 d5 30. Qb3 Nd6 31. a4 Nc4 32. Ra1 Qd8 33. Qc3 Na5 34. Rb1 Rd6 35. bxc6
bxc6 36. Qc5 Rd7 37. Rdb4 Qa8 38. h4 Rc8 39. h5 Nc4 40. h6 Rdc7 41. Rxc4 dxc4
42. Bf1 Rd7 43. Bxc4+ Rd5 44. Qe7 {1-0 Uhlmann,W-Zwaig,A/Halle 1967/EXT 99 (44)
}) 17. Qxc3 d5 {
For my the logical answer. The game belos with 17...Nd7 was unknown to me.} (
17... Nd7 18. Rad1 Nc5 19. e3 Qe5 20. Qc2 a5 21. Rd4 Rad8 22. Rfd1 Rf6 23. Qd2
Na6 24. e4 Rdf8 25. Rxd6 fxe4 26. Rxf6 Rxf6 27. Re1 Nc5 28. f4 Qd6 29. Rd1 Qxd2
30. Rxd2 e3 31. Rd1 Re6 32. Rd8+ Kg7 33. Kf1 e2+ 34. Ke1 Re3 35. Rd2 Nd3+ 36.
Rxd3 Rxd3 37. Kxe2 Rd4 38. Bf3 Kf6 39. Ke3 Rd8 40. h4 h5 41. a3 c5 42. a4 Rd6
43. Be2 Kf5 44. Bf3 Rb6 45. Bd1 Re6+ 46. Kf2 Rd6 47. Bc2+ Kg4 48. Be4 Rd2+ 49.
Ke3 Rb2 50. Bxg6 Rxb3+ 51. Ke4 Rxg3 52. Bf7 Kxh4 53. Kf5 Rf3 54. Bd5 Rf2 55.
Bxb7 Kg3 56. Ke5 Rxf4 57. Bd5 h4 58. Kd6 h3 59. Kxc5 h2 60. Kb6 Rxc4 {
0-1 Meduna,E-Palatnik,S/Trnava 1987/TD (60)}) 18. cxd5 Nxd5 19. Qc4 {White has
of course a small advantage because the B is stronger than the N but it is a
hard task to demonstrate a win for White. Black has counterchances on the open
e-file and a possible break with f5-f4. And if White decides to exchange the
opposite N Black will remain with an isolated pawn. Having already made some
experience with this type of position, I am convinced that Black has enough
compensation for this weakness due to the pressure along the open c- and
e-files.} 19... Rfe8 20. Rfd1 Nb6 (20... Nc7 {is bad on account of} 21. Rd7
Rac8 22. Qxe6+ Rxe6 23. e3 {with a clear advantage for White}) 21. Qxe6+ Rxe6
22. Rd2 Rae8 {More than six minutes had I investigated the more or less forced
variation starting with 22...Ree8 before I decided to play anoter move.} (22...
Ree8 23. Rad1 Kf7 24. e3 Ke7 25. Kf1 Rad8 26. Ke2 Rxd2+ 27. Rxd2 Rd8 28. Rxd8
Kxd8 {and the BvsN ending is rather difficult for Black.}) 23. Kf1 R6e7 24.
Rad1 Kf7 25. h3 {
The move I had expected was 25.Bh3 with the aim of opening the diagonal h3-c8.}
25... Rc8 {Intends to exchange the rooks on d7.} 26. Ke1 {
More worried was I about 26.a4} 26... Rcc7 27. a4 a5 28. Rc2 {This came as a
real surprise to me and fortunately Black has still a sufficient defence.}
28... Re8 29. g4 {Again an unexpected but not bad move.} 29... fxg4 30. hxg4
Rd7 31. Rc5 Rxd1+ 32. Kxd1 Ra8 {I began to feel uncomfortable, my pieces
stands rather passive and I thought that 33.g5 would be a rather strong
continuation for White to improve his position.} 33. e4 {After some minutes of
thought I came to the conclusion that this pawn maneouvre was a wrong decision.
Now I felt that I should be able to hold the position and to get a draw
against Chess Tiger 14.0 because Black can construct a blockade with N and the
g6-pawn.} 33... Nd7 34. Rc3 g5 {That's the point, Black prevents f2-f4 and is
planning to put his N to the strong central square e5.} 35. Ke2 Ne5 36. f3 Kf6
{The last precise move that protects the knight in order to be able to play
Ra8-d8.} 37. Rc5 b6 {No weakness in this position.} 38. Rc1 Rd8 {
And here Black has at least obtained equality.} 39. Rc3 {
Chess Tiger 14.0 does not like to make experiments.} (39. Rh1 Kg7 40. Rd1 Rxd1
41. Kxd1 Kf6 42. Ke2 Nd7 {and the advantage lies on Black's side.}) 39... Rd4
40. Ke3 Rd8 {Very fast played with the intention to study the position more
deeply the next move.} 41. Ke2 Rd4 42. Ke3 Rd8 {At first I wanted to place my
rook on b4 but then reminded me that one should not bring the own pieces to
worse places ... especially not if you play against a computer.} 43. Ke2
1/2-1/2
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