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Subject: Re: What is the best positional test for chess programs ???? ANYBODY KNOW??

Author: Harald Faber

Date: 23:48:16 04/21/99

Go up one level in this thread


On April 21, 1999 at 10:09:52, blass uri wrote:

>>And BTW choose your opponent for the Deep Thought-position, you didn't answer
>>yet. I'll try WChess and MCP as black, you choose the white player.
>>Genius or your favourite Junior? :-)
>
>I prefer Junior at long time control because Genius is a root processor and can
>changes it's evaluation after actions like trading queens.
>
>I think that in this tactical position it is better to play the first 10 moves
>at slower time control (at least 10 minutes per move) because it is important
>not to miss something tactical.
>
>I can tell you Junior5.4's and Genius3's moves with white at slow time
>control(at least 10 minutes per move.

I tried to start Junior5 with white at move #17 (16...Rae8 is WChess' move) but
that bloody auto232 within the Fritz-GUI is a shame and only makes trouble.
I didn't get them play on from that position.

>Junior follow the game and play a different move only when it choose Kd1 or Kf1
>instead of Kd2 when Genius3 choose 17.Ne4 Nf5 18.Nfg5 Bxc5 19.Qg4
>
>Uri

And as you found out white is lost after 19...Qe5. So the position gives black
clear advantage after taking the Nc5? I would say so.
I can show you 2 games I played yesterday, started at 15.bxc5.
Time control in the 1st game was 40/2h+rest/60, so that after move no.15 they
played 24 moves in 2h. Genius took 10min average, WChess only 3-5min.
In the 2nd game same time control but I started with setup move no.1 so that
they really had 40/2h

[Event "Testpartie ab Zugnr. 16 (Schwarz)"]
[Site "Haltern"]
[Date "1999.??.??"]
[Round "?"]
[White "Genius 6 Engine MMX166"]
[Black "WChess 2000 Engine AMD K6-200"]
[Result "0-1"]
[ECO "C31"]

1. e4 e5 2. f4 d5 3. exd5 c6 4. Nc3 exf4 5. Nf3 Bd6 6. d4 Ne7 7. dxc6 Nbxc6 8.
d5 Nb4 9. Bc4 O-O 10. a3 b5 11. Bb3 Na6 12. Nxb5 Qa5+ 13. Nc3 Nc5 14. Ba2 Ba6
15. b4 Qc7 16. bxc5 Rae8 17. Ne2 Qxc5 18. c4 Nxd5 19. Qd4 Ne3 20. Bxe3 Rxe3
21. Qxc5 Bxc5 22. Rb1 Rfe8 23. Nfg1 Rxa3 24. Rb2 Be3 25. Kd1 Rd8+ 26. Ke1 Bxc4
27. Bb1 Rb3 28. Rxb3 Bxb3 29. Nc3 Bd2+ 30. Kf2 Bxc3 31. Ne2 Rd2 32. Rc1 Bb4
33. Rc8+ Bf8 34. Be4 g5 35. Ke1 Rd1+ 36. Kf2 Be6 37. Rb8 Kg7 38. Rb5 Be7 39.
g3 Bc4 40. Re5 Rd2 41. Bf3 fxg3+ 42. hxg3 Kf6 43. Ra5 Bb4 44. Ra1 a5 45. Rc1
Bxe2 46. Bxe2 a4 47. Ke3 Rd5 48. Bc4 Bd2+ 49. Ke2 Bxc1 50. Bxd5 h5 51. Kd1 Be3
52. Ke2 Bc5 53. Kf3 g4+ 54. Ke2 a3 55. Bb3 Ke7 56. Ba2 f5 57. Kf1 Kf6 58. Kg2
Kg5 59. Bd5 h4 60. gxh4+ Kxh4 61. Kf1 f4  0-1

In this second game Hiarcs played on K6-200 and WChess on MMX166. It didn't help
much...

[Event "Testpartie ab Zugnr.16"]
[Site "Haltern"]
[Date "1999.04.22"]
[Round ""]
[White "HIARCS"]
[Black "WChess2000"]
[Result "0-1"]
[FEN "4rrk1/p1q1nppp/b2b4/2PP4/5p2/P1N2N2/B1P3PP/R1BQK2R w KQ -"]

1. Ne4 {H7: 08   1.Ne4 Bxc5 Bb2 =  312}
1... Nf5 2. Nfg5 {H7: 09   2.Nfg5 Bxc5 =   44}
2... Bxc5 3. c3 {H7: 08   3.c3 Be7 Nxf7 Bh4+ =  -96}
3... h6 4. Ne6 {H7: 07   4.Ne6 fxe6 =   19}
4... fxe6 5. dxe6 {H7: 08   5.dxe6 Kh8 =  -26}
5... Kh8 6. Rb1 {H7: 08   6.Rb1 Ne3 Qf3 Nxg2+ Qxg2 f3 Qd2 f2+ Kd1 Rd8 Bd5
f1=Q+ Rxf1 Rxf1+ Kc2 Rf5 c4 = -226}
6... Rd8 7. Qa4 {H7: 08   7.Qa4 Bd3 = -319}
7... Nh4 8. Qxa6 {H7: 07   8.Qxa6 f3 gxf3 Nxf3+ Ke2 Ng1+ Ke1 Nf3+ Ke2 =    0}
8... Qe5 9. Qa4 {H7: 07   9.Qa4 f3 Bd2 fxg2 Rg1 Bxg1 Kd1 Bxh2 Kc2 g1=Q Rxg1
Bxg1 =-1038}
9... f3 10. Bd2 {H7: 08  10.Bd2 fxg2 Rg1 Rf1+ Rxf1 gxf1=R+ Kxf1 Qxh2 Qe8+
Rxe8 Bxh6 Qh1+ Ke2 Qxe4+ Kd1 gxh6 Rb2 Qf3+ Kc2 Bxa3 =-1942}
10... fxg2 11. Rg1 {H7: 08  11.Rg1 Rf1+ =-1942}
11... Nf3+ 12. Kd1 {H7: 04  12.Kd1 Qxe4 Qxe4 Rxd2+ = -911}
12... Nxd2 13. Kc1 {H7: 06  13.Kc1 Nxe4 =-2080}
13... Nxe4 14. Qd4 {H7: 05  14.Qd4 Bxd4 Mat-10}
14... Rxd4 15. Rb8 {H7: 03  15.Rb8 Rxb8 Mat-7}
15... Bxa3+ 16. Rb2 {H7: 02  16.Rb2 Qg5+ Mat-6}
16... Rf1+ 17. Kc2 {H7: 02  17.Kc2 Rd2+ Kb3 Qxc3+ Ka4 Rd4+ Kb5 Nd6+ Ka6 Ra4+
Mat-5}
17... Rf2+ 18. Kb3 {H7: 01  18.Kb3 Qb5+ Kxa3 Qxb2+ Mat-2}
18... Qb5+ 19. Kxa3 {H7: 01  19.Kxa3 Qxb2+ Mat-1}
19... Qxb2+  0-1




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