Shark is probably Rybka 3 Clone

[Edward German]

Shark is (perhaps) a Rybka 3 Clone!

The graphic shows the move 69 in the same identical depth evaluation of Rybka 3 and Shark 1. 33 (depth 70)



PGN:

[Event "16m + 0s, rated"]
[Site "Engine Room"]
[Date "2009.08.22"]
[Round "?"]
[White "Storm99, Shark 1.33"]
[Black "Andromede33, Rybka 3"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2679"]
[BlackElo "2543"]
[PlyCount "153"]
[EventDate "2009.08.22"]
[EventType "rapid"]

1. Nf3 {B/0 0} c5 {B/0 0} 2. e4 {B/0 0} d6 {B/0 0} 3. Nc3 {B/0 0} Nf6 {B/0 0}
4. d4 {B/0 0} cxd4 {B/0 0} 5. Nxd4 {B/0 0} a6 {B/0 0} 6. f3 {B/0 0} e5 {B/0 0}
7. Nb3 {B/0 0} Be6 {B/0 0} 8. Be3 {B/0 0} Be7 {B/0 0} 9. Qd2 {B/0 0} O-O {B/0 0
} 10. O-O-O {B/0 0} Nbd7 {B/0 0} 11. g4 {B/0 0} b5 {B/0 0} 12. g5 {B/0 0} b4 {
B/0 0} 13. Ne2 {B/0 0} Ne8 {B/0 0} 14. f4 {B/0 0} a5 {B/0 0} 15. f5 {B/0 0} Bc4
{B/0 0} 16. Ng3 {B/0 0} Bxf1 {B/0 0} 17. Rhxf1 {B/0 0} a4 {B/0 0} 18. Na1 {
B/0 0} a3 {B/0 0} 19. b3 {B/0 0} Kh8 {B/0 0} 20. h4 {B/0 0} Rc8 {B/0 0} 21. f6
{B/0 0} gxf6 {B/0 0} 22. Nf5 {B/0 0} Rc3 {B/0 0} 23. Kb1 {B/0 0} fxg5 {B/0 0}
24. hxg5 {B/0 0} Rxe3 {B/0 0} 25. Qxe3 {B/0 0} Bxg5 {B/0 0} 26. Qe1 {B/0 0} Qa5
{B/0 0} 27. Nxd6 {B/0 0} Nxd6 {B/0 0} 28. Rxd6 {B/0 0} Nc5 {B/0 0} 29. Rd5 {
B/0 0} Bf4 {B/0 0} 30. c4 {B/0 0} bxc3 {B/0 0} 31. Nc2 {B/0 0} Qb6 {0.83/14 19}
32. Rxf4 {0.96/15 14} Nxb3 {0.86/15 10} 33. Qxc3 {1.00/17 28} Qg1+ {0.86/16 0}
34. Ne1 {(De1) 1.08/17 67} Nd4 {0.89/16 48} 35. Rxd4 {(Db4) 1.04/17 0} exd4 {
0.89/14 24} 36. Qb4 {1.23/18 79} Kg8 {0.92/17 0} 37. Kc1 {(Rc2) 1.10/17 86}
Rc8+ {0.94/14 22} 38. Kd1 {1.44/15 46} Qg5 {0.97/17 0} 39. Qd6 {1.65/16 21} h5
{0.97/16 103} 40. Nf3 {1.68/16 19} Qg2 {1.47/16 32} 41. Nd2 {1.98/14 5} Qg3 {
1.47/16 99} 42. Qf6 {2.22/18 0} Qg1+ {2.15/16 89} 43. Rf1 {2.22/18 0} Qg7 {
2.15/16 56} 44. Qf5 {2.45/18 17} Qg4+ {2.15/16 36} 45. Qxg4+ {2.57/21 0} hxg4 {
2.30/19 6} 46. Rf4 {(Tg1) 2.61/22 3} d3 {2.30/18 7} 47. Rxg4+ {2.61/23 5} Kf8 {
2.37/20 11} 48. Nb1 {2.61/23 5} Rc2 {2.50/21 15} 49. Nxa3 {2.65/24 9} Rxa2 {
2.50/22 5} 50. Nb5 {2.65/25 16} Ke7 {2.51/22 5} 51. Rg5 {2.65/25 15} f6 {
2.51/20 16} 52. Rd5 {2.78/23 8} Rb2 {2.57/22 2} 53. Nd6 {2.96/24 8} Ke6 {
2.58/22 4} 54. Rxd3 {3.26/24 43} Rh2 {2.81/24 0} 55. Rd4 {3.35/23 13} Ke5 {
2.96/22 1} 56. Rd5+ {3.36/22 8} Ke6 {2.96/22 0} 57. Nb7 {(Re1) 3.53/25 26} Ke7
{2.96/16 15} 58. Nc5 {(Re1) 3.66/22 4} Ke8 {3.06/19 7} 59. Rf5 {(Cd3) 3.67/23 3
} Ke7 {3.36/21 10} 60. Nd3 {4.07/25 50} Ra2 {3.36/23 0} 61. Nb4 {4.47/23 15}
Ra4 {3.36/22 31} 62. Rb5 {4.47/25 0} Ke6 {4.16/22 16} 63. Kd2 {(Re2) 4.48/25 11
} Ra3 {4.16/21 2} 64. Nd3 {4.77/25 39} Ra2+ {4.16/22 0} 65. Ke3 {5.08/25 42}
Ra3 {4.56/24 0} 66. Rb7 {(Tb6+) 5.08/24 11} Kd6 {4.76/20 6} 67. Rb6+ {
(Rd4) 5.12/23 13} Ke7 {4.87/20 6} 68. Kd4 {5.12/22 20} Ra8 {5.12/20 17} 69. Nb4
{(Cf4) 5.12/19 7} Kd7 {5.12/18 5} 70. Rxf6 {5.12/18 5} Ra4 {5.12/20 28} 71. Kc4
{5.12/16 4} Ra1 {5.12/20 2} 72. Nc6 {(Cd5) 5.12/15 10} Rc1+ {5.12/14 9} 73. Kd5
{5.12/13 2} Rc3 {5.12/14 3} 74. Rd6+ {5.75/14 5} Kc7 {5.33/15 0} 75. Nd4 {
(e5) 5.89/13 4} Rg3 {5.58/13 5} 76. e5 {(Cb5+) 6.30/12 6} Rg2 {6.60/11 7} 77.
Nb5+ {Andromede33,Rybka 3 abandonne (Lag: Av=0.28s, max=0.9s) 7.66/12 5} 1-0

What says You now?

[Edward German]

Sorry. Of course move 69 after 5s in depth 18 (Rybka) an Shark 1.33 move 70 after 5s in the same depth 18. Both are with a eval +5.12 identical!

[Guenther]

Sorry. Of course move 69 after 5s in depth 18 (Rybka) an Shark 1.33 move 70 after 5s in the same depth 18. Both are with a eval +5.12 identical! :shock:

I thought this was already known since long(that Shark is of course just another ...)?

Guenther

[Uri Blass]

Sorry. Of course move 69 after 5s in depth 18 (Rybka) an Shark 1.33 move 70 after 5s in the same depth 18. Both are with a eval +5.12 identical!

I thought this was already known since long(that Shark is of course just another ...)?

Guenther

I thought initially that he talks about some known engine because there is an engine with a similiar name.

see the following post:
http://talkchess.com/forum/viewtopic.ph ... 37&start=0

If we talk about unknown engine that only play in playchess then
it is not imprtant news.

You can assume that every engine with good results in playchess is rybka
unless you have an evidence that it is not the case.

Uri

[Edward German]

Hello Uri,

You are right... but:

There is a rumor around that the engine Shark (as Single-Engine) soon to be, and the supposedly free. Some people have the engine already, but it still may not play.

[Robert Flesher]

This is of course interesting, but clearly not conclusive.
Is this information fiction ?
I quote :
" The current Hydra team, led by Abdul Mateen Khan, is working on two new chess projects: Cryptic and Shark.
Cryptic runs on modern high speed multi-processor CPU. It is programmed in mixed C and Assembly Language. It is aimed to be the world's top single machine Chess Engine.
Shark is network based deep search meta engine. It is based on unique idea by which it reaches to depth of 25+ easily with the help of only 6 CPUs in less than a minute. Currently a dual core CPU takes more than an hour to reach to this depth"

[F. Bluemers]

This is of course interesting, but clearly not conclusive.
Is this information fiction ?
I quote :
" The current Hydra team, led by Abdul Mateen Khan, is working on two new chess projects: Cryptic and Shark.
Cryptic runs on modern high speed multi-processor CPU. It is programmed in mixed C and Assembly Language. It is aimed to be the world's top single machine Chess Engine.
Shark is network based deep search meta engine. It is based on unique idea by which it reaches to depth of 25+ easily with the help of only 6 CPUs in less than a minute. Currently a dual core CPU takes more than an hour to reach to this depth"

A couple of years ago people on the cb server checked the shark/cryptic games and concluded it was the then current rybka version.
Best
Fonzy

[bob]

Hello Uri,

You are right... but:

There is a rumor around that the engine Shark (as Single-Engine) soon to be, and the supposedly free. Some people have the engine already, but it still may not play.

What a shock. I'd bet that at _least_ 25% of engines today are clones/copies of other engines. Just shows that there are plenty of "ethically challenged" people walking around on planet earth.

And notice the emphasis on _lease_. It is probable the percentage is much higher.

[Mike S.]

That "Playchess Shark" is not a typical clone case, or none at all. I think it's just an edited, custom engine name. It looks to me as if someone just likes to have an individual name for his settings and configuration he uses Rybka with, in the online engine games there. That's not too unusual, but in most cases the name part "Rybka" is kept. But he simply changed all of the name, from a small fish to a bigger fish.

I am not aware that anything has been sold, distributed or offered otherwise related to that. The rest are just rumors. As we can see, depth+eval are sent, what a cloner with bad intention would not do, or would at least fake it somehow. Also, I see no sign that there is any relation with the Shark engine, or project, which was mentioned by the Hydra team. That's just another use of the same name(*).

But this phantasy reveils how much the fans would like to see a promising competitor for the top rank.

*) I guess it also has nothing to do with "Zarkov the Shark"

[F. Bluemers]

That "Playchess Shark" is not a typical clone case, or none at all. I think it's just an edited, custom engine name. It looks to me as if someone just likes to have an individual name for his settings and configuration he uses Rybka with, in the online engine games there. That's not too unusual, but in most cases the name part "Rybka" is kept. But he simply changed all of the name, from a small fish to a bigger fish.

I am not aware that anything has been sold, distributed or offered otherwise related to that. The rest are just rumors. As we can see, depth+eval are sent, what a cloner with bad intention would not do, or would at least fake it somehow. Also, I see no sign that there is any relation with the Shark engine, or project, which was mentioned by the Hydra team. That's just another use of the same name(*).

But this phantasy reveils how much the fans would like to see a promising competitor for the top rank.

*) I guess it also has nothing to do with "Zarkov the Shark"

the guy with shark/cryptic had nicks ending with 99.I would not be suprised at all if it was the same shark from the hydra team.
The same team that also had a "ground zero" engine