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Subject: Re: Just another one of RebelTiger on ICC

Author: Robert Hyatt

Date: 14:20:30 11/14/00

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On November 14, 2000 at 15:08:28, Bruce Moreland wrote:

>On November 14, 2000 at 14:10:09, Robert Hyatt wrote:
>
>>On November 14, 2000 at 13:26:31, Bruce Moreland wrote:
>>
>>>On November 14, 2000 at 13:06:52, Robert Hyatt wrote:
>>>
>>>>On November 14, 2000 at 13:01:29, Bruce Moreland wrote:
>>>>
>>>>>On November 14, 2000 at 12:03:24, Robert Hyatt wrote:
>>>>>
>>>>>>On November 14, 2000 at 11:39:23, Djordje Vidanovic wrote:
>>>>>>
>>>>>>>On November 14, 2000 at 10:09:28, Kees van Iersel wrote:
>>>>>>>
>>>>>>>>I only want to show that computers can still loose games to persons who are
>>>>>>>>much weaker. The difference is 761.
>>>>>>>>How would kramnik perfome against a person with so much difference.
>>>>>>>>Secondly if a computer would win everything who would be interested in seeing
>>>>>>>>human versus machine games.
>>>>>>>>
>>>>>>>>
>>>>>>>>[Event "ICC 3 3"]
>>>>>>>>[Site "Internet Chess Club"]
>>>>>>>>[Date "2000.11.13"]
>>>>>>>>[Round "-"]
>>>>>>>>[White "WICKER-MAN"]
>>>>>>>>[Black "Rebel Tiger 13.0"]
>>>>>>>>[Result "1-0"]
>>>>>>>>[ICCResult "Black checkmated"]
>>>>>>>>[WhiteElo "1884"]
>>>>>>>>[BlackElo "2645"]
>>>>>>>>[Opening "Sicilian: Taimanov variation"]
>>>>>>>>[ECO "B46"]
>>>>>>>>[NIC "SI.39"]
>>>>>>>>[Time "23:21:26"]
>>>>>>>>[TimeControl "180+3"]
>>>>>>>>
>>>>>>>>1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Bc4 Qc7 7. Bb3 b5 8.
>>>>>>>>a3 Nf6 9. O-O Nxd4 10. Qxd4 Bd6 11. h3 Bh2+ 12. Kh1 Be5 13. Qe3 Bxc3 14.
>>>>>>>>bxc3 Bb7 15. f3 O-O 16. a4 d5 17. e5 Nd7 18. f4 bxa4 19. Rxa4 Bc6 20. Ra1
>>>>>>>>Bb5 21. Rf3 a5 22. Ba3 Rfc8 23. Bd6 Qb7 24. f5 a4 25. Ba2 Bc4 26. Bxc4 Rxc4
>>>>>>>>27. f6 Qb2 28. Qg5 Qxa1+ 29. Kh2 Qh1+ 30. Kxh1 Nxf6 31. exf6 Rg4 32. hxg4 g6
>>>>>>>>33. Qh6 a3 34. Qg7# {Black checkmated} 1-0
>>>>>>>
>>>>>>>
>>>>>>>Hmm... yet another game that confirms Bob's hypothesis about the best programs
>>>>>>>not yet being strong enough to challenge GM's.  I had a strong feeling of deja
>>>>>>>vu after going through it.   It looked just like the many games I won against
>>>>>>>the Super Conny, Mach III, Designer 2265, Rex Chess, Genius, Fritz, etc...
>>>>>>>
>>>>>>>Don't get me wrong -- I did lose the bulk of those, but the occasional win or
>>>>>>>two, resembling the one above, would always bring back a dose of healthy
>>>>>>>skepticism regarding my initial enthusiasm and estimates of the programs:)
>>>>>>>
>>>>>>>***  Djordje
>>>>>>
>>>>>>
>>>>>>Another point.  It is highly likely that the opponent used a computer here.  I
>>>>>>base this on a couple of things.  Near the end, there is a deep mate.  He played
>>>>>>it _perfectly_.  Which I don't think an 1800 player could do.  If I were
>>>>>>betting, I would bet that white is a computer.
>>>>>
>>>>>Bob, you need to look at the game a little bit, I think.  It was a normal
>>>>>anti-computer attack, and anyone could have played the game perfectly from move
>>>>>26 on.  This was a 3 3 and white wa a human.  He lost the other 7 games.
>>>>
>>>>My problem hits two ideas:  1.  No tactical mistakes for 20 consecutive
>>>>moves;  2.  he finds a mate in 7, and follows it perfectly for the next
>>>>7 moves.  In blitz.  It _could_ be a good human.  But my intuition says
>>>>"computer" was involved.
>>>
>>>Look at the game, he plays like a human.
>>>
>>>Moves 1-15 are a sit-and-wait Sicilian.  If anything he's getting chased around
>>>a little.  His playing really solid in order to avoid having to deal with wild
>>>tactics, but he let black crack his pawns.
>>>
>>>16. a4 is the first enterprising move of the game, unless you count 1. e4.
>>>
>>>16. ... d5 17. e5 is required unless you want to open the game up for the black
>>>pieces, and it's an anti-computer move because it allows him to think about
>>>bisecting the board.
>>>
>>>17. ... Nd7 18. f4 is necessary to protect the pawn unless you want to play Re1,
>>>and f4 also continues with the idea of bisecting the board.
>>>
>>>18. ... bxa4 19. Rxa4 Bc6 20. Ra1.  Maybe he could have put it on d4, which
>>>might let him think about swinging it faster, but I'm proabably stupid.  You
>>>certainly can't claim that a computer picked 20. Ra1.
>>
>>
>>But I can.  :)  I annotated this game with a margin of .01 and Crafty didn't
>>comment on any move after 18.  Which means it agreed 100%.  Of course, I can't
>>figure out how much time per move to spend, so I picked a pretty small number
>>since this was blitz.
>>
>>At move 18, Crafty likes Ba3 better, score=-.24 vs -.76 for f4.
>>
>>After that, they agree.
>
>I am not surprised that they agree, Bob.  After move 18, every move is either a
>response to a direct threat, a recapture, or a direct threat.
>
>I'm appalled that people think that someone is a computer because they win a
>game against a computer.  Every move in the game could have been played easily
>from a decent human perspective.  White avoided heavy tactics and instead went
>for blunt long-range stuff.  White ignored q-side material when the attack was
>on.  It's ridiculous to question this based upon the result or the fact that
>another computer could play this game.
>
>Appended is another game played between these two opponents.  This is a failed
>attack by what is obviously a human.  He is going for the Qg7# theme in this
>game, too, but he wasn't able to keep the lid on and Tiger whacked him.
>
>I am not one who thinks that suggesting someone is using a computer is some sort
>of personal attack, but but I think the accusation is very much unwarranted in
>this case.
>
>bruce

As I said, you are possibly correct.  The game you gave certainly supports
that.  I'm not overly hyper about it myself.

Of course, losing 7 and then winning 1 also doesn't mean that the player
didn't cheat that one game.  I have seen that happen as well...




>
>Move  WICKER-MAN         Caissac
>----  ----------------   ----------------
>  1.  e4       (0:01)    c6       (0:00)
>  2.  d4       (0:02)    d5       (0:00)
>  3.  Nc3      (0:01)    dxe4     (0:00)
>  4.  Nxe4     (0:01)    Nf6      (0:00)
>  5.  Nxf6+    (0:08)    exf6     (0:00)
>  6.  Bd3      (0:02)    Qxd4     (0:04)
>  7.  Nf3      (0:03)    Qd8      (0:00)
>  8.  O-O      (0:03)    Be7      (0:02)
>  9.  Re1      (0:05)    O-O      (0:04)
> 10.  Bf4      (0:03)    Bg4      (0:04)
> 11.  h3       (0:10)    Be6      (0:04)
> 12.  Qe2      (0:11)    Bc5      (0:05)
> 13.  Nh4      (0:13)    Qb6      (0:05)
> 14.  c3       (0:15)    a5       (0:13)
> 15.  Rad1     (0:08)    Bxa2     (0:10)
> 16.  Nf5      (0:04)    Be6      (0:00)
> 17.  Qg4      (0:15)    Bxf2+    (0:04)
> 18.  Kh1      (0:03)    Bxf5     (0:03)
> 19.  Qxf5     (0:06)    g6       (0:00)
> 20.  Qxf6     (0:18)    Nd7      (0:02)
> 21.  Qe7      (0:27)    Bxe1     (0:01)
> 22.  Bc4      (0:13)    Qc5      (0:04)
> 23.  Rxd7     (0:21)    Qxc4     (0:05)
> 24.  Be5      (0:14)    Qf1+     (0:05)
> 25.  Kh2      (0:02)    Bf2      (0:04)
> 26.  h4       (0:04)    Rae8     (0:04)
> 27.  Qf6      (0:07)    Qg1+     (0:00)
> 28.  Kh3      (0:02)    Qh1+     (0:05)
> 29.  Kg4      (0:16)    Qxg2+    (0:00)
> 30.  Kf4      (0:02)    Qg3+     (0:02)
>0-1



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