Author: Ricardo Gibert
Date: 10:23:32 01/27/03
Go up one level in this thread
On January 27, 2003 at 10:58:39, Robert Hyatt wrote:
>On January 27, 2003 at 02:16:09, Ricardo Gibert wrote:
>
>>On January 27, 2003 at 00:36:13, Robert Hyatt wrote:
>>
>>>On January 27, 2003 at 00:18:55, Ricardo Gibert wrote:
>>>
>>>>I played a couple of 15 10 standard games against Crafty on ICC from the
>>>>Searcher-Crafty CCT5 rook ending position, which had ended in a draw. The object
>>>>was to see if the ending was really an easy win for Black i.e. if *I* can win
>>>>it, anyone can ;)
>>>>
>>>>I played both 61...b5 and 61...Re8. The first game with 61...b5 got a little
>>>>trickier than expected and the second was very simple, so I guess it could be
>>>>said the position is "marginally easy." For those who are curious, here is the
>>>>PGN for both games:
>>>
>>>The real question is "if you are playing black, with about 8 minutes on
>>>your clock, and the clock ticking, can you find the way to win without making
>>>any errors. As just one error is all it takes, particularly in the b5
>>>line (as opposed to Re8 which looks a bit simpler after studying it).
>>
>>
>>I prepared a little by playing Ruffian. My intention was to prepare by playing
>>about 20 blitz games, but after going 3-0 easily against Ruffian, I got lazy. It
>>was too easy and that was with 2 6 where I finished each game with more time
>>than what I started with. In our games, I had to sit on my hands to keep from
>>playing too quickly. You see, I don't play slow chess anymore and very rarely
>>even play blitz. I'm a bullet addict.
>>
>>However, probably a more relevant question is how Crafty would have done against
>>another engine. I have a feeling the draw against Searcherx may have been due to
>>a poor eval for Rook endings. I would be interested in how it would fare against
>>Fritz or Tiger for example.
>>
>
>That is hard to answer here since I can't run 'em. But my original point was
>that Crafty
>played about as well as it could have played, in a bad position. I still have
>no doubt that
>that is true. IE it played a pretty good endgame against the GM on FICS Saturday
>afternoon...
>
>If you recall, I've not ever said "this game was not winnable by black." I said
>"it is not
>an obvious win and will require some study (by me) to see if it can be won by
>black or
>not." There are plenty of places black can make mistakes...
>
>However, we can always try the same test again but using a computer, to see if
>they
>understand. I should add that in the two tests last night, Crafty predicted
>_every_ move you
>made but one, and the "one" was a transposition in one position where more than
>one move
>led to the same position. It can play that pretty well, and I would think,
>after studying it while
>the game was going on last night, that it could win with black without any real
>trouble.
Ruffian too has no problem winning the position. It is looking more and more
like I said, "I have a feeling the draw against Searcherx may have been due to a
poor eval for Rook endings."
>
>
>>
>>>
>>>
>>>>
>>>>
>>>>[Event "ICC w20 15 10 u"]
>>>>[Site "Internet Chess Club"]
>>>>[Date "2003.01.26"]
>>>>[Round "-"]
>>>>[White "crafty"]
>>>>[Black "slo-mo"]
>>>>[Result "0-1"]
>>>>[ICCResult "White resigns"]
>>>>[WhiteElo "2977"]
>>>>[BlackElo "2398"]
>>>>[Time "22:24:13"]
>>>>[TimeControl "900+10"]
>>>>[SetUp "1"]
>>>>[FEN "8/1p1R2pk/5p2/7P/7P/5Kn1/4r3/8 b KQkq - 0 1"]
>>>>
>>>>1... b5 2. Kxg3 Kh6 3. Rb7 Rb2 4. Kg4 Rb4+ 5. Kg3 Rb1 6. Kg4 b4 7. Rb8 Kh7
>>>>8. Kf5 b3 9. Ke6 b2 10. Kf7 f5 11. h6 g6 12. Kf6 f4 13. h5 g5 14. Rb7+ Kxh6
>>>>15. Rb8 Kxh5 16. Kf5 Kh4 {White resigns} 0-1
>>>>
>>>>[Event "ICC w20 15 10 u"]
>>>>[Site "Internet Chess Club"]
>>>>[Date "2003.01.26"]
>>>>[Round "-"]
>>>>[White "crafty"]
>>>>[Black "slo-mo"]
>>>>[Result "0-1"]
>>>>[ICCResult "White resigns"]
>>>>[WhiteElo "2977"]
>>>>[BlackElo "2398"]
>>>>[Time "22:41:57"]
>>>>[TimeControl "900+10"]
>>>>[SetUp "1"]
>>>>[FEN "8/1p1R2pk/5p2/7P/7P/5Kn1/4r3/8 b KQkq - 0 1"]
>>>>
>>>>1... Re8 2. Kxg3 Rb8 3. Rd4 b5 4. Rb4 Kh6 5. Kg4 Rb6 6. Kh3 Kxh5 7. Kg3 g6
>>>>8. Kf3 f5 9. Kf4 Re6 10. Rxb5 Re4+ 11. Kf3 Rxh4 12. Rb8 Kg5 13. Rb6 Rh3+ 14.
>>>>Kg2 Rc3 15. Kf2 f4 16. Ra6 Kf5 17. Ra2 Kg4 18. Rd2 g5 19. Rd7 Rc2+ 20. Ke1
>>>>Kg3 {White resigns} 0-1
>>>>
>>>>
>>>>A thank you to RH for helping resolve any issues connected with the position.
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