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Subject: Re: CCT5 & NoonianChess

Author: Uri Blass

Date: 03:50:19 01/25/03

Go up one level in this thread


On January 25, 2003 at 03:36:54, Tony Werten wrote:

>On January 25, 2003 at 01:14:27, Charles Roberson wrote:
>
>>
>>   The tournament was great fun. Tiring, but fun. I prefer the format at
>>   WCCC 2002, but it would be too much for all tournaments to be like that.
>>
>>   The competition was great. I have lots of analysis data. The talk on ch 64
>>   "compfortably numb" (pun intended). I enjoyed the IM commentary and Volker
>>   performed excellently as TD. I hope to see more like these several times a
>>   year. You can't get better competition without an expensive trip to Europe.
>>
>>   Version 3.4 was used. It is 2x faster than 3.3 and more knowledgable:
>>       better king safety, mobility, ...
>>   It averaged a ply deeper than the Maastricht version even at half the time
>>   control.
>>
>>   I'll comment on some of the games as the theme seems repeatable.
>>
>>   Game 1: Searcher - NoonianChess 1-0
>>       I tried our a virtually untested new book. Ran into a bug on move 6.
>>      This caused the drop of a bishop for 2 pawns. Amazingly, Noonian played
>>      quite well after this -- it used its center pawn advantage to control
>>      the center and the game. Then a mistake on move 34; KxB should have been
>>      the move (a free bishop and now Noonian would be up a full two pawns).
>>      But seems there is a bug that caused the mistake. Analysis from CM8000
>>      revealed that after 34 ... KxB, Noonian can force the win of the other
>>      bishop but alas Searcher could for a draw by perpetual check or 3frp.
>>
>>      So, I was happy with the game and use my old tournament book for the
>>      rest of the tournament.
>>
>>   Game 3: NoonianChess - PostModernist  0 - 1
>>      Noonian gained a draw from PM in WCCC 2002. It was a great experience
>>      competing against Andrew so, I was quite happy to do it again. Noonian
>>      stayed in book for 10 or so moves. Noonian makes questionable bishop
>>      moves on moves 17 and 18. (remember game 1 -- mistake in not taking a
>>      free bishop). Noonian does not make the same mistakes when given the
>>      positions but it does if the game is played to that point (a bug a bug
>>      -- or is it something to dig into). After this, PostModernist performs
>>      excellently in controlling the game.
>>
>>    Game 4: Matacz - NoonianChess 0 -1
>>      Noonian won a pawn and created a passer on the A file by move 21. The
>>      rest of the game centered on this one pawn. Noonian pushed the pawn and
>>      Matacz spent most of the rest of the game keeping the a pawn from
>>      promoting. There were times when I thought Noonian had stronger moves but
>>      I'm not sure (I haven't analyzed it deeply but the stronger moves
>>      involved a bishop -- hmm bishop problem sounds like a theme to me).
>>      Finally, Matacz is able to capture the pawn on a2. However, Noonian has
>>      too many threats on the king which causes the win of material and the
>>      eventual mate of Matacz. A long game. After the first two, I kept
>>      wondering when is the bug going to happen again and lose this one.
>>      The great part of live games!!!!
>>
>>    Game 5: NoonianChess - Aristarch 1 - 0
>>      The opening had me on the edge of my seat. Noonian was agressive from the
>>      start with an attack on Aristarch's king side. I had some of
>>      that "Australian speed skater luck": Aristarch lost its connection
>>      for more than 15 minutes and forfeited the game.
>>
>>     Game 6: Pepito - NoonianChess  1 - 0
>>      I was happy that Noonian held its own to move 35. Pepito sacs a rook for
>>      the bishop and things go down hill from there. A rook for a bishop --
>>      hmm is there an issue with bishops?
>>
>>     Game 7: NoonianChess - Amyan 0 - 1
>>      NoonianChess plays well from opening to midgame. I was happy to move
>>      25. Noonian has a nice position. I need to analyze this deeply to see
>>      what really happened. At move 35, Noonian has a passer and seems there is
>>      a lot of potential for a win. However, at move 41 Noonian gives up a rook
>>      for a pawn and knight. I suspect it liked 3pawns and a knight vs a rook
>>      and a pawn -- especially considering 2 of Noonians pawns are passers.
>>      Amyan forces the trade of all this and the ending is a forced draw.
>>      However, I didn't have egtb's and move 65 is a mistake. I loaded this
>>      position into Noonian latter and it doesn't make the mistake. Another
>>      bug to fix. Also, this the second game in live tournament competition
>>      lost due to lack of egtb's -- the first is Goliath Lite - NoonianChess
>>      Maastrict WCCC 2002.
>>
>>    Game 8: Czolgista  - NoonianChess 0 - 1
>>      I expected to win this one as the programs met in competition on ics this
>>      week. However, Czolgista froze up on move two and lost on time having
>>      made only one move. Wow, that Austrailian speed skater luck was with me.
>>
>>   Game 9: NoonianChess - XiniX  1 - 0
>>      This is my favorite game. I have not analyzed it yet but I can't wait.
>>      This game had classic horizon effect issues. Both sides had chances in
>>      the middle game. So, it was quite exciting. Forget the edge of my seat --
>>      I was pacing during this one. At move 30, Noonian considers itself up
>>      2.8 pawns. The kibitzing made this far more interesting than without it.
>>      For a series of moves Noonian and Xinix agree with the scores that
>>      Noonian is up 3 pawns. Then Xinix searchers a little deeper and claims
>>      the score is even. A move later (move 45), Noonian thinks it is down
>>      4/10 of a pawn. After several moves of 3 pawns up, now both programs
>>      call it even. (so where is this bug?). Oh no -- on move 46 both programs
>
>This game showed a new bug in XiniX :( At move 45 XiniX thinks it's winning (it
>was) but then somehow at 46 got a different position on the board. At move 49
>where I (manually) resigned, XiniX is actually trying to give a checkmate move,
>but winboard keeps saying "illegal move" :(

Is not it the opposite?

I do not see how 49.Rxf1 in the game is legal without 46.Ra1 so I guess that
Xinix said illegal move about Rxf1 of Noonian.

What was the problem?

Did Xinix ponder on the move that it expected(Maybe Ne6) instead of the move
that was played?

Uri



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