Bright 0.4a's play - again I am getting a headache!

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Eraserheads
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Bright 0.4a's play - again I am getting a headache!

Post by Eraserheads » Fri Jul 10, 2009 2:35 pm

Some engines I keep for some reason
a) strength
b) style
c) historical value

I keep the latest Bright around because among all the engines it is the one that plays the most incomprehensible chess. Chess Tiger 14 plays the clearest. I can follow Chess Tiger 14's moves like a book, and not get lost. It builds up strong positions and wins them most of the time, slowly and methodically. Bright simply makes my head spin.

I've posted some games of Bright before. He tends to complicate matters very quickly and the resulting positions can look really weird and bizarre. For those looking for a 'crazy' sparring partner, bright qualifies. Thinker is quite another. It plays more 'beautiful' chess than Bright, and often makes great looking sacrifices. Bright tends to lead his opponents to dangerous uncharted waters and often comes out alive.

I might put up a new website of my own, and include there a computer chess portion.

Take a look at his latest game vs Fritz 7.


[Event "?"]
[Site "?"]
[Date "2009.07.10"]
[Round "?"]
[White "Fritz 7"]
[Black "Bright 0.4a"]
[Result "0-1"]

1. e4 {0s} c5 {book 0s} 2. Nf3 {2s} d6 {book 0s} 3. d4 {2s}
cxd4 {book 0s} 4. Nxd4 {2s} Nf6 {book 0s} 5. Nc3 {2s} a6
{book 0s} 6. f3 {2s (Bg5)} e6 {book 0s} 7. Be3 {2s} b5
{book 0s} 8. g4 {5s} h6 {book 0s} 9. Qd2 {3s} Nbd7 {book
0s} 10. O-O-O {2s} Bb7 {book 0s} 11. h4 {4s (Bd3)} b4 {book
0s} 12. Na4 {3s} d5 {+0.65/13 11s} 13. Bh3 {3s} Qa5
{+0.64/12 10s} 14. b3 {32s} Nc5 {+0.63/14 0s} 15. g5 {7s}
Nfd7 {+0.53/12 18s} 16. g6 {7s} e5 {+0.68/11 3s} 17. gxf7+
{8s (exd5)} Kxf7 {+1.01/11 6s} 18. Bxd7 {4s (exd5)} Nxd7
{+1.24/12 11s} 19. Nf5 {4s} Bc6 {+1.34/11 1s} 20. Qg2 {10s
(Rhg1)} g6 {+1.01/11 11s} 21. Rhg1 {36s} Rg8 {+1.37/14 0s}
22. exd5 {11s (Nxh6+)} Bxa4 {+1.16/12 10s} 23. Qh3 {3s} Nc5
{+1.08/11 1s} 24. bxa4 {16s (h5)} b3 {+0.05/10 4s} 25. cxb3
{11s (Bxc5)} Nxb3+ {+0.02/10 5s} 26. Kb1 {8s} Nc5 {-0.18/11
1s} 27. Rd3 {19s} Qb4+ {-0.40/11 0s} 28. Rb3 {18s} Nxb3
{-0.44/13 0s} 29. Nxh6+ {3s} Kg7 {-0.60/12 5s} 30. Qd7+
{3s} Be7 {-0.72/11 0s} 31. Qxe7+ {4s} Qxe7 {-1.00/16 3s}
32. Nf5+ {2s} Kf8 {-0.97/16 4s} 33. Nxe7 {4s} Kxe7
{-0.97/15 2s} 34. axb3 {2s} Kd6 {-0.97/14 1s} 35. Rd1 {4s
(f4)} Rgb8 {-1.00/14 3s} 36. Rd3 {42s (Ka2)} Rb4 {-1.14/17
6s} 37. Bf2 {6:42m} Rc8 {-1.03/22 0s} 38. Kb2 {11s} a5
{-0.97/18 0s} 39. Be1 {6s} Rd4 {-0.99/17 2s} 40. Rxd4 {8s
(Re3)} exd4 {-1.49/19 5s} 41. Bxa5 {0s} Kxd5 {-1.48/16 2s}
42. Bd2 {4s} d3 {-1.57/17 0s} 43. Bc3 {6s} Re8 {-1.59/18
0s} 44. Bd2 {11s (Ba5)} Kd4 {-1.88/17 5s} 45. b4 {0s (Kc1)}
Rc8 {-2.75/19 4s} 46. Kb3 {3s} Rc2 {-3.71/19 3s} 47. Bf4
{0s (Bg5)} Rc3+ {-4.24/18 3s} 48. Kb2 {1s (Ka2)} Kc4
{-4.24/19 5s} 49. b5 {0s} Rc2+ {-4.49/18 4s} 50. Kb1 {0s}
Kc3 {-4.49/18 6s} 51. h5 {2s (Be5+)} gxh5 {-13.64/15 3s}
52. Be5+ {1s} Kb3 {-15.15/18 4s} 53. Bf4 {0s} 0-1


[D]r4br1/3n1k2/p5pp/q2PpN2/bp5P/1P2BP1Q/P1P5/2KR2R1 b - -
[D]r4br1/5k2/p5pp/q1nPpN2/P6P/3RBP1Q/P7/1K4R1 b - -
[D]r5r1/4Q1k1/p5pN/3Pp3/Pq5P/1n2BP2/P7/1K4R1 b - -

DomLeste
Posts: 221
Joined: Thu Mar 09, 2006 3:53 pm

Re: Bright 0.4a's play - again I am getting a headache!

Post by DomLeste » Fri Jul 10, 2009 6:33 pm

That would be a good idea Michael having a computer chess page with games of these tactical engines like Thinker, Bright etc... Im a fan of these Tal like engines.

Werewolf
Posts: 1272
Joined: Thu Sep 18, 2008 8:24 pm

Re: Bright 0.4a's play - again I am getting a headache!

Post by Werewolf » Fri Jul 10, 2009 6:36 pm

I'm very interested in programs' style of play and have made observations about it over the last 15 years.

I wonder what your opinions are of the top commercial progs?

Ron Murawski
Posts: 397
Joined: Sun Oct 29, 2006 3:38 am
Location: Schenectady, NY
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Re: Bright 0.4a's play - again I am getting a headache!

Post by Ron Murawski » Fri Jul 10, 2009 9:12 pm

Eraserheads wrote: I might put up a new website of my own, and include there a computer chess portion.
Hi Micjael,

You are welcome to create your own pages at the Computer-Chess Wiki. For free! It has built-in support for showing fen diagrams and has easy wiki syntax for bold/italic, size/style, etc. Just register and start creating! If you run into troubles trying to use the wiki you can email me for help. I can create a private area for you so no one else can modify your pages. If you are not interested, that's okay: many people prefer to have their own site instead.

Ron
http://computer-chess.org/ (Computer-Chess Wiki)
http://computer-chess.org/doku.php?id=wiki:dokuwiki (Help page)

Allard Siemelink
Posts: 297
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Location: Netherlands
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Re: Bright 0.4a's play - again I am getting a headache!

Post by Allard Siemelink » Sat Jul 11, 2009 1:34 pm

Nice to hear that you appreciate Bright's unique perspective :)

As to why it plays the way it plays, I am not sure...
King safety was revamped in version 0.4a and includes some
new concepts that can dominate the evaluation quite easily.

On the other hand, I have actually gone to some lengths to tune
Bright's evaluation weights to match human GM evaluations.

ernest
Posts: 1892
Joined: Wed Mar 08, 2006 7:30 pm

Re: Bright 0.4a's play - again I am getting a headache!

Post by ernest » Sat Jul 11, 2009 6:43 pm

Great engine, Allard... but if you find the time,
can you correct the nps number (it's given in meganodes/sec, rounded, instead of the usual kilonodes/sec) :D

Allard Siemelink
Posts: 297
Joined: Fri Jun 30, 2006 7:30 pm
Location: Netherlands
Contact:

Re: Bright 0.4a's play - again I am getting a headache!

Post by Allard Siemelink » Sat Jul 11, 2009 8:00 pm

Sure, I'll put it on the todo list

solis
Posts: 86
Joined: Sat Jun 20, 2009 8:19 pm
Location: Milwaukee,Wi

Re: Bright 0.4a's play - again I am getting a headache!

Post by solis » Sat Jul 11, 2009 8:39 pm

Hi Allard,
I have to say that I like your engine very much.It is a lot of fun to play and has a lot of surprises in it's repertoire.
Any hint when your next engine is going to be released.
Hope to have even more fun with the new Bright.
Best wishes.

Allard Siemelink
Posts: 297
Joined: Fri Jun 30, 2006 7:30 pm
Location: Netherlands
Contact:

Re: Bright 0.4a's play - again I am getting a headache!

Post by Allard Siemelink » Sat Jul 11, 2009 8:59 pm

Thanks.
The next release could be in a couple of weeks or so...

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Dr.Wael Deeb
Posts: 9701
Joined: Wed Mar 08, 2006 7:44 pm
Location: Amman,Jordan

Re: Bright 0.4a's play - again I am getting a headache!

Post by Dr.Wael Deeb » Sat Jul 11, 2009 9:45 pm

Allard Siemelink wrote:Thanks.
The next release could be in a couple of weeks or so...
Great news Allard :D
Dr.D
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….

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