Beating Rybka 2.3b

[sje]

It took a few tries, but at last the new version of Symbolic took out Rybka 2.3b on ICC. Here's the game:

[Event "Xboard game"]
[Site "gail"]
[Date "2008.04.08"]
[Round "3"]
[White "Symbolic v2008.04.08"]
[Black "olorin"]
[Result "1-0"]
[Termination "Black is checkmated"]
[TimeControl "G/600+5"]
[LTS "Tue Apr 8 03:15:22 2008"]
[UTC "2008.04.08 07:15:22"]
[WhiteElo "2530"]
[BlackElo "2856"]
[ECO "B23"]
[Opening "Sicilian: closed, 2...Nc6"]
[SOC "5244"]

1 e4 c5 2 Nc3 Nc6 3 Nf3 d6 4 d4 cxd4 5 Nxd4 Nf6 6 Bc4 g6 7 Nxc6 bxc6 8 e5 Ng4 9
exd6 Qxd6 10 Qxd6 exd6 11 Bf4 Be7 12 Rd1 Ne5 13 Bb3 f6 14 O-O d5 15 Rfe1 Kf7 16
Bxe5 fxe5 17 Nxd5 cxd5 18 Bxd5+ Be6 19 Bxa8 Rxa8 20 Rxe5 Rc8 21 c3 Bc5 22 b3
Bg4 23 Rdd5 Bb6 24 c4 Be6 25 Rd6 Bg4 26 Re1 Ba5 27 Re4 Bf5 28 Re2 Bb4 29 Rd5 a6
30 h3 Be6 31 Rde5 Bd7 32 a3 Bxa3 33 Ra5 Bc5 34 Re5 Bd6 35 Red5 Ke6 36 Rxa6 Bc6
37 Rda5 h6 38 Rb6 Be7 39 Raa6 Kd6 40 b4 Bd8 41 Rb7 Ke5 42 Rh7 Bg5 43 h4 Bxh4 44
Rxh6 Bd8 45 Rxg6 Bb7 46 Rae6+ Kf4 47 c5 Ra8 48 c6 Ra1+ 49 Kh2 Ba8 50 Rg7 Kf5 51
Rd6 Bh4 52 g3 Bg5 53 Rd5+ Ke6 54 Rdxg5 Bxc6 55 R5g6+ Kd5 56 Rf6 Ba8 57 g4 Kc4
58 Rf4+ Kd5 59 b5 Ke6 60 Rf5 Re1 61 b6 Rb1 62 Rg6+ Ke7 63 g5 Rh1+ 64 Kg3 Rg1+
65 Kf4 Ra1 66 Re5+ Kd7 67 Rc5 Bd5 68 Rxd5+ Ke7 69 Kf5 Ra8 70 Rg7+ Kf8 71 b7 Re8
72 Rdd7 Rb8 73 Kg6 Ke8 74 Rdf7 Rxb7 75 Rg8# 1-0

This just shows that any program can get lucky once in a while. Now if only this could happen during a real tournament.

[Tony Thomas]

I wish that you would one day release Symbolic for windows...

[swami]

I wish that you would one day release Symbolic for windows...

Yes, Tony, I second that. Will the symbolic be made available for download, Steven?

[Tony Thomas]

I wish that you would one day release Symbolic for windows...

Yes, Tony, I second that. Will the symbolic be made available for download, Steven?

He said no the last time I asked him. If he were to release the code, I guess someone will port it to windows, for once we can actually use Ben Lau, we can just tell him that symbolic is the strongest engine.

[swami]

I wish that you would one day release Symbolic for windows...

Yes, Tony, I second that. Will the symbolic be made available for download, Steven?

He said no the last time I asked him. If he were to release the code, I guess someone will port it to windows, for once we can actually use Ben Lau, we can just tell him that symbolic is the strongest engine.

That Kid Lau is busy designing his own website, as opposed to his alleged claim that he had authored strongest engine on the planet....maybe he is trying to learn how to create java based chess applet, who knows...

any idea about the symbolic's strength?

[sje]

There are no plans to ever release Symbolic for any platform.

Symbolic has been tested under Windows using the Cygwin emulator. It works, but some of the threaded code is a little wonky. I don't know if this is due to Cygwin or the fact that it was a single core machine. Symbolic does run well on Mac and Linux single core boxes.

Again, Symbolic 's A/B single thread searcher really isn't that strong (ICC matchbox learning):

Code: Select all

              rating [need] win  loss  draw total   best
Bullet          2588        900   368    78  1346   2747 (22-Nov-2006) 
Blitz           2558       3668  2468   805  6941   2822 (14-Mar-2007) 
Standard        2355       2422  2190   669  5281   2603 (21-Feb-2007)