Author: Uri Blass
Date: 11:50:23 09/04/01
Go up one level in this thread
On September 04, 2001 at 08:21:59, Sune Larsson wrote:
>On September 04, 2001 at 08:06:51, Uri Blass wrote:
>
>>On September 04, 2001 at 06:44:43, Sune Larsson wrote:
>>
>>>On September 04, 2001 at 06:13:45, Uri Blass wrote:
>>>
>>>>On September 04, 2001 at 05:53:35, Peter Berger wrote:
>>>>
>>>>>On September 04, 2001 at 04:39:13, Eduard Nemeth wrote:
>>>>>
>>>>>>After Fritz 6c , I played today this "two knights" opening, against Tiger 14
>>>>>>on Blitz 30' Level.
>>>>>>
>>>>>>But, Tiger 14 losing in pawn endgame! :-(
>>>>>>
>>>>>>
>>>>>>[Event "Stufe=Blitz:30'."]
>>>>>>[Site "?"]
>>>>>>[Date "2001.??.??"]
>>>>>>[Round "?"]
>>>>>>[White "Chess Tiger 14.0"]
>>>>>>[Black "Nemeth,Eduard"]
>>>>>>[ECO "C56"]
>>>>>>[Result "0-1"]
>>>>>>
>>>>>>1. e4 {0} e5 {2} 2. Nf3 {0} Nc6 {2} 3. Bc4 {0} Nf6 {3}
>>>>>>4. d4 {0} exd4 {1} 5. O-O {0} Nxe4 {3} 6. Re1 {0} d5 {1}
>>>>>>7. Bxd5 {0} Qxd5 {1} 8. Nc3 {0} Qh5 {1} 9. Nxe4 {0} Be7 {3}
>>>>>>10. Bg5 {0} Bg4 {1} 11. Bxe7 {0.70/12 30} Bxf3 {4} 12. Nf6+
>>>>>>{0.76/12 34} gxf6 {3} 13. Bxf6+ {0.00/13 32} Kd7 {3}
>>>>>>14. Qxf3 {-0.19/13 33} Qxf3 {4} 15. gxf3 {-0.22/15 37}
>>>>>>Rhg8+ {3} 16. Kf1 {-0.22/15 60} Rg6 {3} 17. Bh4 {-0.06/14
>>>>>>68} f5 {31} 18. Rad1 {-0.04/13 54} Rf8 {81} 19. f4 {0.14/13
>>>>>>46} Rd6 {22} 20. f3 {0.12/13 34} Re8 {18} 21. Rxe8 {0.36/15
>>>>>>34} Kxe8 {3} 22. Bf2 {0.32/14 47} Nb4 {36} 23. Rxd4
>>>>>>{0.26/16 53} Rxd4 {3} 24. Bxd4 {-0.04/15 7} Nxc2 {10}
>>>>>>25. Bxa7 {-0.14/17 56} b6 {3} 26. a4 {-0.04/19 55} Ne3+
>>>>>>{13} 27. Ke2 {-0.08/18 37} Nd5 {2} 28. a5 {-0.04/17 40}
>>>>>>bxa5 {9} 29. Be3 {-0.14/18 25} Nxe3 {4} 30. Kxe3 {-0.16/18
>>>>>>7} c5 {2} 31. Kd3 {-0.14/21 31} Kd7 {2} 32. Kc4 {-0.18/20
>>>>>>44} Kc6 {3} 33. b3 {-1.80/22 125} Kb6 {10} 34. h3 {-1.80/21
>>>>>>25} h6 {18} 35. h4 {-2.06/23 151} h5 {2} 36. Kd3 {-3.92/23
>>>>>>200} Kb5 {3} 37. Kd2 {-25.93/20 33} c4 {7} 38. Kc3
>>>>>>{-13.71/17 18} cxb3 {6} 0-1
>>>>>>
>>>>>
>>>>>Hi Eduard,
>>>>>
>>>>>it seems to me your analysis is not to the point here although your intro (
>>>>>mentioning the pawn endgame)was .
>>>>>
>>>>>At move 24 white's position is already bad - 25. Bxa7 ?!looks somehow ugly to a
>>>>>human's eye but what should the general rule be to avoid it ? Tiger sees that it
>>>>>can free the bishop again without problems so it is trading a pair of pawns on
>>>>>the queenside and destroying the black majority - not too bad a general idea.
>>>>>
>>>>>The real problem is 29. Be3 ?? ( and I suspect this one will be hard to avoid
>>>>>for many programs ) trading into the lost pawn endgame . Sth like Kd3 instead
>>>>>might have been good enough for a draw still.
>>>>>
>>>>>pete
>>>
>>>snip
>>>
>>>
>>>>Tiger14 is better and can see Nxe3 in the pv but it cannot avoid Be3.
>>>>
>>>>Uri
>>>
>>> I don't get it. This is Tiger's analyse after move 28, and 8 sec needed
>>> to avoid 29.Be3?
>>>
>>>
>>> Chess Tiger 14.0 - Nemeth,E
>>>4k3/B1p4p/8/p2n1p2/5P2/5P2/1P2K2P/8 w - - 0 1
>><snipped>
>>>Analysis by Gambit Tiger 2.0:
>>
>>I did not check this analysis but the analysis is by gambittiger2 when the game
>>was played by tiger14.
>>
>>I did not try gambit2 because I assumed that there is no difference between
>>gambit2 and tiger14 in the endgame.
>>
>>Uri
>
> This is the output from Tiger 14 and 7 sec to avoid 29.Be3?
>
>
> Chess Tiger 14.0 - Nemeth,E
>4k3/B1p4p/8/p2n1p2/5P2/5P2/1P2K2P/8 w - - 0 1
>
>Analysis by Chess Tiger 14.0:
>
>29.Be3 Nxe3 30.Kxe3 Kd7 31.Kd4 Kd6 32.Kc4 Kc6 33.Kb3 Kb5 34.Kc3 Kc6
> = (0.00) Depth: 12 00:00:00 147kN
>29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.Kb3 Kb5 34.Kc3 h5 35.Kd3
> = (-0.04) Depth: 12 00:00:00 175kN
>29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.Kb3 Kb5 34.Kc3 a4 35.Kd3 Kc6
> = (-0.12) Depth: 13 00:00:00 299kN
>29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.Kb3 Kb5 34.Kc3 h5 35.Kd3 h4
>36.b3
> ³ (-0.52) Depth: 14 00:00:01 432kN
>29.Kd3 Nxf4+ 30.Kc4 Kd7 31.Bd4 Kd6 32.Bc3 a4 33.Bb4+ Ke6 34.Kb5 Nd3 35.Kxa4 Ke5
>36.b3 Kf4
> ³ (-0.50) Depth: 14 00:00:07 2452kN
>29.Bd4 Nxf4+ 30.Ke3 Ne6 31.Bc3 a4 32.Kd3 Kd7 33.Kc4 Ng5 34.f4 Ne6 35.Be5 Kc6
>36.Kb4
> ³ (-0.44) Depth: 14 00:00:09 3094kN
>29.Bd4 Nxf4+ 30.Ke3 Ne6 31.Bc3 a4 32.Kd3 Kd7 33.Ke3 Kd6 34.h3 h5 35.f4 c5 36.Bf6
>Kd5
> ³ (-0.54) Depth: 15 00:00:13 4331kN
>29.Kd3 Nxf4+ 30.Kc4 Kd7 31.Bd4 Kd6 32.Bc3 Ng6 33.Kd3 a4 34.Kd4 Ne5 35.Ke3 Ke6
>36.Kf4 Nd3+ 37.Kg5
> ³ (-0.50) Depth: 15 00:00:22 7032kN
>29.Kd3 Nxf4+ 30.Kc4 Kd7 31.Bd4 Kd6 32.Bc3 Ng6 33.Kd4 a4 34.Bb4+ Ke6 35.Bc3 Ne5
>36.Ke3 c5 37.Kf4 Nd3+ 38.Kg5
> ³ (-0.52) Depth: 16 00:00:42 13164kN
>29.Kd3 Nxf4+ 30.Kc4 Ng6 31.Bd4 Kd7 32.Bc3
> ³ (-0.60) Depth: 17 00:02:29 45533kN, tb=5
>
>(Larsson, KIL 04.09.2001)
what did you do to your tiger?
Are you sure that you use the default parameters?
I do not understand why it cannot go deep
Here is tiger14 under the chessbase interface
Maybe it is a problem of hash tables(I used 48 Mbytes hash) but I cannot believe
that hash tables have this big effect)
New game - Deep Fritz
[D]4k3/B1p4p/8/p2n1p2/5P2/5P2/1P2K2P/8 w - - 0 1
Analysis by Chess Tiger 14.0:
29.Be3 Nxe3 30.Kxe3 Kd7 31.Kd4 Kd6 32.Kc4 Kc6 33.Kb3 Kb5 34.Kc3 Kc6
= (0.00) Depth: 12 00:00:00 146kN
29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.Kb3 Kb5 34.Kc3 h5 35.Kd3
= (-0.02) Depth: 12 00:00:00 164kN
29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.b3 Kb6 34.h4 h5 35.Kd3 Kc6
= (-0.12) Depth: 13 00:00:00 299kN
29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.h4 a4 34.h5 h6 35.Kd3 Kd6 36.Ke3
= (-0.14) Depth: 14 00:00:01 591kN
29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.b3 Kb6 34.h4 Kc6 35.h5 h6 36.Kc3
Kd5
= (-0.12) Depth: 15 00:00:03 1246kN
29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.h4 a4 34.h5 h6 35.Kd3 Kd5 36.Kc3
Ke6 37.Kc4
= (-0.14) Depth: 16 00:00:06 2125kN
29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.h4 a4 34.h5 h6 35.Kd3 Kd5 36.Kc3
Ke6 37.Kc4 Kd6
= (-0.14) Depth: 17 00:00:13 4407kN
29.Be3 Nxe3 30.Kxe3 c5 31.Kd3 Kd7 32.Kc4 Kc6 33.b3 Kb6 34.h3 Kc6 35.h4 Kb6
36.Kd5 h5 37.Kc4 Kc6 38.Kc3
= (-0.14) Depth: 18 00:00:25 8223kN
(Blass, Tel-aviv 04.09.2001)
You can see that my tiger goes deeper in less nodes.
Uri
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