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Tuesday, May 12, 2009

17th World Computer Chess Championship

The 17th World Computer Chess Championship is taking place in Pamplona Spain. The following programs are participating: Junior (Israel), Rybka (USA), Jonny, Hiarcs, Shredder, Deep Sjeng, The Baron, Joker, Pandix 2009, and Equinox. Here are the standings after four rounds of play:

1Juniorflag ISRIntel Xeon W5580 @ 3.2GHz x
2Rybkaflag USA
3Jonnyflag DEU
4Hiarcsflag GBRIntel Xeon W5580 @ 3.2GHz x 82.548.02.75
5Shredderflag DEU
6Deep Sjengflag BEL
7The Baronflag NLD
8Jokerflag NLDCore 2 Duo0.5411.00.25
8Pandix 2009flag HUN
10Equinoxflag ITA8x Intel(R) Xeon(R) CPU X5355 2.66GHz0.0410.00.00


These programs and their programmers are amazing. They can reproduce human behavior in the most amazing way. Yesterday, I used Deep Rybka 3 to analyze a game between two top players participating in the current United States Chess Championship. The program found a way to win the game for one player which the human player did not play.

In the GM Christiansen-GM Shabalov game from round 4, Shabalov blundered on move 27 when he played 27...c5?? and Christensen missed the difficult to see 28.f5!! (which the program Deep Rybka 3 found) and which wins after:

(a) 28... exf5 29. Qg2 Qe7 30. Qxd5+ Kh8 31. Nf7+ Kg8 32. Nd6+ Kh8 33. gxf5 Nxf5 34. Nxc8 Rxc8 35. Bxf5 gxf5 36. e6 +-

(b) 28.f5!! also wins after 28...
gxf5 29. gxf5 exf5 30. Qg2 Kh8 31. e6 Nxe6 32. Nxe6 Qh6 33. Ng5 Qg7 34. Rxf5 Rf8 35. Rcf1 Rxf5 36. Rxf5 +-

and (c)28.f5!! also wins after 28...Qd8 29.f6 c4 30.Bxg6!! hxg6 31.f7+ Kh8 32.Rf3 c3 33.bxc3 Qe7 34.Rh3+ Nh5 (only move) 35.gxh5+-

The game ended in a draw:
[Event "US Championship"]
[Site "Saint Louis USA"]
[Date "2009.05.11"]
[EventDate "2009.05.08"]
[Round "4"]
[Result "1/2-1/2"]
[White "L Christiansen"]
[Black "A Shabalov"]
[ECO "E76"]
[WhiteElo "2588"]
[BlackElo "2569"]
[PlyCount "98"]

1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f4 O-O 6. Nf3 c6 7. Be2 a6 8. O-O b5 9. e5 Ne8 10. c5 Nc7 11. cxd6 exd6 12. Ne4 Ne8 13. Be3 Qe7 14. Bf2 Be6 15. Nfg5 Nd7 16. Nxe6 fxe6 17. g3 d5 18. Ng5 Bh6 19. Nf3 Ng7 20. a4 b4 21.Rc1 Rfc8 22. Qd2 a5 23. g4 Ne8 24. Bh4 Qf8 25. Bg5 Bxg5 26. Nxg5 Ng7 27. Bd3 c5 28. Qe3 Qe7 29. Qh3 Nf8 30. Rf3 c4 31. Bc2 Rc7 32. Qh4 b3 33. Bxg6 hxg6 34. Rh3 Nh5 35. gxh5 c3 36. Rhxc3 Rac8 37. Qg3 Rc4 38. hxg6 Qa7 39.Qe3 Nxg6 40. Nxe6 Qf7 41. Rxc4 Rxc4 42. Rxc4 dxc4 43. d5 Qf5 44. Qa7 Qg4+ 45. Kf2 Nxf4 46. Qb8+ Kh7 47. Qa7+ Kg8 48. Qb8+ Kh7 49. Qa7+ Kg8 1/2-1/2

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Thoughts worth thinking about

"Our subconscious minds have no sense of humor, play no jokes and cannot tell the difference between reality and an imagined thought or image. What we continually think about eventually will manifest in our lives."-Sidney Madwed

Laws alone can not secure freedom of expression; in order that every woman and man present their views without penalty, there must be spirit of tolerance in the entire population.- Albert Einstein Too often we underestimate the power of a touch, a smile, a kind word, a listening ear, an honest compliment, or the smallest act of caring, all of which have the potential to turn a life around. - Leo Buscaglia

A person's true wealth is the good he or she does in the world. - Mohammed

Our task must be to free ourselves... by widening our circle of compassion to embrace all living creatures and the whole of nature and its beauty. -Albert Einstein

The best way to find yourself, is to lose yourself in the service of others. - Ghandi

The unselfish effort to bring cheer to others will be the beginning of a happier life for ourselves. - Helen Keller

Aim for success, not perfection. Never give up your right to be wrong, because then you will lose the ability to learn new things and move forward with your life. Remember that fear always lurks behind perfectionism. Confronting your fears and allowing yourself the right to be human can, paradoxically, make yourself a happier and more productive person. - Dr. David M. Burns

Life is as dear to a mute creature as it is to man. Just as one wants happiness and fears pain, just as one wants to live and not die, so do other creatures. -His Holiness The Dalai Lama

Mankind's true moral test, its fundamental test (which lies deeply buried from view), consists of its attitude towards those who are at its mercy: animals. And in this respect mankind has suffered a fundamental debacle, a debacle so fundamental that all others stem from it. -

Milan Kundera, The Unbearable Lightness of Being

The worst sin towards our fellow creatures is not to hate them, but to be indifferent to them. That's the essence of inhumanity. -George Bernard Shaw

Ego's trick is to make us lose sight of our interdependence. That kind of ego-thought gives us a perfect justification to look out only for ourselves. But that is far from the truth. In reality we all depend on each other and we have to help each other. The husband has to help his wife, the wife has to help the husband, the mother has to help her children, and the children are supposed to help the parents too, whether they want to or not.-Gehlek Rinpoche Source: "The Best Buddhist Writing 2005 pg. 165

The hostile attitude of conquering nature ignores the basic interdependence of all things and events---that the world beyond the skin is actually an extension of our own bodies---and will end in destroying the very environment from which we emerge and upon which our whole life depends.