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Up Topic The Rybka Lounge / Computer Chess / NAUM 4.2
- - By Razor (****) Date 2010-03-14 20:19
20 March - true?
Parent - - By Carl Bicknell (*****) Date 2010-03-14 20:22
but not free :(

If there was a book included I'd snap it up.
Parent - - By FWCC (***) Date 2010-03-14 20:26
On the Website:

Naum 4.2 will be available around Mar,20th.

Considering the estimated improvement of more then 50 ELO compared to Naum 4.0 this version will not be free.
It is offered to Naum 4.0 customers for the small upgrade price of 25 EUR.
Price for the new MP customers will still be 60 EUR.
Customers who bought Naum after the 4.1 upgrade will receive the 4.2 version for free.

You can pre-order your copy of Naum 4.2 by clicking the appropriate link below.

http://naumchess.brinkster.net/
Parent - By BrandonSi (***) Date 2010-03-14 20:35
Very interesting.. This might put it within ~30 elo of Deep Rybka 3. If that is the case, I'll definitely purchase it, but I need to see some results first.

Hopefully they'll post their results on their website, so we don't have to wait for people to purchase first and then run their own tests.
Parent - - By sarciness (***) Date 2010-03-14 20:44
It's good that people are making these engines, but for 60 Euro, there's no way I'll be convinced to purchase it.
Parent - - By FWCC (***) Date 2010-03-14 21:03
I'll get it for 25 EURO
Parent - By sarciness (***) Date 2010-03-15 01:06
Hmmm, there are so many free engines out there and I know Naum is relatively strong so 25 Eur for a non-upgrade version would be reasonable I suppose, but still on the steep side. I guess it's for hardcore fans/computer chess junkies and I'm just not the target market.
Parent - - By turbojuice1122 (Gold) Date 2010-03-15 03:44
One should definitely wait until independent tests are done.  People should have learned their lesson from the Junior 11.1 situation: 50-70 elo in private testing can mean 0-10 elo in official testing against many engines with many books.
Parent - By Carl Bicknell (*****) Date 2010-03-15 08:07

> People should have learned their lesson from the Junior 11.1 situation: 50-70 elo in private testing can mean 0-10 elo in official testing against many engines with many books.


Yes agreed. Wait for CEGT, that's my motto.
Parent - By FWCC (***) Date 2010-03-14 20:31 Edited 2010-03-14 20:44
There is a Naum book at superchessengine.com I think there are 3 sizes to choose from.I think these books are rather old but not bad as I use them for Naum.We'll I'm gonna pre-order!
Parent - - By Bouddha (****) Date 2010-03-14 21:53
I followed on playchess a Naum version named 4.1.6 and it seemed to be stronger than Rybka 3 looking at a few games.
Here is just one example where Naum 4.1.6 outplayed Rybka 3 dynamic even so the game would have finished in a draw if it went to the end. (black disconnected)

[Event "16m + 0s, rated"]
[Site "?"]
[Date "2010.03.14"]
[Round "?"]
[White "Alansacount, Rybka 3 Dynamic"]
[Black "Cheshire Cat, Naum 4.1.6"]
[Result "*"]
[WhiteElo "2519"]
[BlackElo "2447"]
[PlyCount "125"]
[EventDate "2010.03.14"]
[EventType "rapid"]
[TimeControl "960"]

1. b3 {B/0 0} Nf6 {B/0 0} 2. Bb2 {B/0 0} c5 {B/0 0} 3. Nf3 {B/0 0} d5 {B/0 0}
4. g3 {B/0 0} Nc6 {B/0 0} 5. Bg2 {B/0 0} e6 {B/0 0} 6. O-O {B/0 0} Be7 {B/0 0}
7. e3 {B/0 0} O-O {B/0 0} 8. c4 {B/0 0} b6 {B/0 0} 9. Qe2 {B/0 0} Bb7 {B/0 0}
10. Rd1 {B/0 0} dxc4 {B/0 0} 11. bxc4 {B/0 0} Qc7 {B/0 0} 12. Nc3 {B/0 0} a6 {
B/0 0} 13. Rab1 {B/0 0} Rab8 {B/0 0} 14. d3 {B/0 0} Rfd8 {B/0 0} 15. Nd2 {B/0 0
} Qd7 {B/0 0} 16. Ba1 {0.39/16 13} Ba8 {0.08/19 25} 17. Nb3 {(Sde4) 0.40/16 3}
Nb4 {0.09/18 31} 18. e4 {(Lxa8) 0.33/16 8} Qc7 {0.23/19 20} 19. e5 {0.48/16 30}
Nd7 {0.24/20 0} 20. Bxa8 {0.44/17 14} Rxa8 {0.18/21 5} 21. f4 {0.42/17 22} Rab8
{0.10/20 27} 22. Ne4 {0.45/16 14} b5 {0.23/19 9} 23. Bc3 {0.34/14 35} Nb6 {0.
23/20 0} 24. d4 {0.49/14 12} Na4 {0.28/20 10} 25. Bxb4 {0.45/15 10} cxb4 {0.24/
21 5} 26. Rdc1 {(Tbc1) 0.41/17 29} bxc4 {0.23/19 20} 27. Rxc4 {0.41/18 7} Qd7 {
0.23/21 0} 28. Rbc1 {0.41/18 45} Rbc8 {0.27/21 35} 29. Kf2 {(T1c2) 0.38/18 23}
h6 {0.30/19 56} 30. R4c2 {(h3) 0.38/17 1} a5 {0.11/20 21} 31. Qa6 {(Tc4) 0.17/
15 14} Ra8 {0.00/19 12} 32. Qc6 {(Dd3) 0.12/16 2} Qd5 {0.00/20 19} 33. Nf6+ {
0.17/16 2} gxf6 {-0.08/21 31} 34. Qxa4 {0.00/16 13} Rd7 {-0.13/20 26} 35. Re2 {
(Td2) 0.00/14 36} Kg7 {-0.20/19 10} 36. h4 {(Td2) 0.00/14 14} Raa7 {-0.29/20 11
} 37. Kg1 {(Td2) -0.15/14 7} Qf3 {-0.37/18 12} 38. Rd2 {(Tcc2) -0.04/14 10} f5
{-0.37/17 14} 39. Kh2 {(Tcc2) -0.05/15 9} Rd8 {-0.39/19 9} 40. Rg2 {(Tcc2) -0.
05/17 4} Kh7 {-0.40/18 11} 41. Rcc2 {(Tc6) -0.10/18 19} Rg8 {-0.40/19 10} 42.
Rcf2 {(Tcd2) -0.29/17 29} Qa8 {-0.40/20 14} 43. Rd2 {-0.29/17 20} Qd5 {-0.40/
21 8} 44. Rc2 {-0.43/16 9} h5 {-0.40/20 17} 45. Rcf2 {(Tgf2) -0.50/16 16} Rc8 {
-0.75/21 28} 46. Rc2 {-0.38/18 0} Rc3 {-0.75/20 43} 47. Rxc3 {-0.37/18 0} bxc3
{-0.75/20 0} 48. Rc2 {-0.59/19 19} Qe4 {-0.83/23 0} 49. Rg2 {-0.59/19 13} Bb4 {
-0.91/21 7} 50. a3 {-0.63/19 11} Be7 {-1.04/21 8} 51. Qc4 {-0.75/19 25} Bxa3 {
-1.04/22 3} 52. Qxc3 {-0.69/19 4} Qd5 {-1.09/23 28} 53. Nc5 {-0.75/19 0} Bb4 {
-1.09/23 33} 54. Qb2 {(Da1) -0.79/20 0} Ra8 {-1.11/20 8} 55. Nd3 {-0.77/19 15}
Bf8 {-1.05/22 0} 56. Nc5 {-0.87/19 25} Bxc5 {-1.01/24 2} 57. dxc5 {-0.87/20 5}
Qxc5 {-1.01/25 12} 58. Qb7 {-0.86/21 0} Qa7 {-1.01/24 3} 59. Qxa7 {-0.88/21 6}
Rxa7 {-1.11/29 0} 60. Ra2 {-1.23/23 12} a4 {-1.10/29 0} 61. Ra3 {-1.23/24 9}
Kg6 {-1.11/30 6} 62. Kg2 {-1.23/25 11} f6 {-1.11/29 0} 63. Kf3 {-1.39/25 17} *
Parent - By BrandonSi (***) Date 2010-03-14 22:45
That's possible if there was a large difference in hardware, like an i7 vs Core 2 duo.. However, even with the  playchess changes to the engine room, people are still using the clones renamed to various other engines, usually Stockfish or Naum. If this was similar hardware, it would not surprise me if this was not Naum, but one of the clones.

I don't really know "Cheshire Cat", so I can't say one way or the other. It could just be due to hardware.
Parent - By daylen (**) Date 2010-03-14 23:19
Rybka bug? I played Cheshire Cat many times using Stockfish 1.6.3 JA on a mobile Core 2 Duo and the Rybka 2 openings book and won the majority of the time.
Parent - - By Androcles (**) Date 2010-03-14 23:12
If 4.2 is not stronger than Rybka 3, it would be very close.
Then, Naumov has definitely a window of opportunity to work on Naum 4.3,
and become (even for a short period) the proud author
of the STRONGEST chess entity in the world ;-)
Parent - By SpiderG (***) Date 2010-03-15 04:28
Hmm...I'll would be surprised if Naum 4.2 is stronger than Rybka 3, but we shall see! :)
Parent - By exigentsky (***) Date 2010-03-17 21:14
If it had a good opening book I'd buy it. Although, if they can push it a little farther and make it the strongest engine, I'd buy it even without an opening book. :)
Up Topic The Rybka Lounge / Computer Chess / NAUM 4.2

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