Author: stuart taylor
Date: 15:51:40 02/16/05
Go up one level in this thread
On February 14, 2005 at 15:57:16, Arturo Ochoa wrote: >On February 14, 2005 at 11:40:12, Uri Blass wrote: > >>On February 14, 2005 at 10:56:24, Vincent Diepeveen wrote: >> >>>On February 14, 2005 at 10:33:12, Jon Dart wrote: >>> >>>>A few notes from Arasan's games in CCT7: >>>> >>>>Game 1 against Homer, Arasan had Black in a QID that Schroer called >>>>"a super high-class line, very theoretical". Arasan was in book until >>>>move 18. It appears Homer misplayed the next few moves. Arasan's score >>>>rapidly climbed and it won. >>>> >>>>Arasan won easily against Alarm after it blundered here with .. Bxa3: >>>> >>>>[D] 3q1b1k/1p4pp/rn2rp2/BR2p3/p3N3/P2PP1P1/5P1P/1QR3K1 b - - 0 1 >>>> >>>>Black is not in good shape already, but the pawn can't be taken. >>>> >>>>Arasan lost against Fafis. The opening was some unusual variant of the >>>>Four Knights .. Arasan was out of book at move 7. Arasan's score >>>>was positive until move 45. I haven't analyzed this yet so I am >>>>not sure where it went wrong but it lost rapidly after that. >>>> >>>>This game against nullmover gave me some anxious moments. 7 .. Ne8 >>>>is unusual (..c6 is more common) and Arasan was out of book after >>>>that. Black got what looked like a pretty scary k-side attack >>>>in the KID. But Arasan defended - in fact its score was never >>>>negative. Finally Arasan broke through on the q-side -- standard >>>>play in the KID - and won. The nullmover author mentioned his program >>>>had no passed pawn code and in general has a simple eval. >>>> >>>>[Event "?"] >>>>[Site "chessclub.com"] >>>>[Date "2005.02.13"] >>>>[Round "?"] >>>>[White "Arasan 9.0"] >>>>[Black "nullmover"] >>>>[Result "1-0"] >>>>[ECO "E87"] >>>>[WhiteElo "2594"] >>>>[BlackElo "2202"] >>>>[TimeControl "3000+3"] >>>> >>>>1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 Ne8 >>>>8. Qd2 f5 9. exf5 gxf5 10. Bd3 Na6 11. Nge2 Nb4 12. O-O f4 13. Bf2 >>>>Nxd3 14. Qxd3 Rf5 15. Ne4 Rh5 16. b4 Rh6 17. Rfe1 Rg6 18. Kh1 Nf6 >>>>19. N2c3 Nxe4 20. Nxe4 Bf5 21. Rg1 Kh8 22. a4 Qe7 23. c5 dxc5 >>>>24. bxc5 Rg8 25. d6 Qf7 26. Rad1 Rh6 27. Rge1 cxd6 28. cxd6 b6 >>>>29. Qd5 Be6 30. Qd2 Bf8 31. Qc3 Qg7 32. g4 Rh3 33. g5 Bg4 34. Rd3 Bf5 >>>>35. a5 Rh5 36. Rd5 Bxe4 37. Rxe5 Qf7 38. R5xe4+ Bg7 39. Qc6 Rxg5 >>>>40. Re8 Rg6 41. axb6 axb6 42. Bxb6 Qa2 43. Rxg8+ Kxg8 44. Re8+ >>>> 1-0 {nullmover resigns} >>>> >>>>Against Pharaon, Arasan played a reasonable variant of the Slav and >>>>was ok for a long time. Finally at this point Pharaon played Bh6: >>>> >>>>[D] q6k/3r1p2/p4Pp1/1pRn3p/3PQ3/P6P/1P1B4/6K1 w - - 0 1 >>>> >>>>and then posted the Bishop on g7. Neither Arasan nor Crafty would play >>>>Bh6 at the tournament time level on the hardware I have, but Crafty >>>>does eventually fail high on it, with a score of +1.7, so this may >>>>have been the decisive move. >>>> >>>>I wasn't watching for a while, but the next time I looked Pharaon was up >>>>a Knight--not quite sure how that happened, but seems like it found a >>>>nice tactic. >>>> >>>>Pharaon was strong even before its recent version update and now it >>>>is really formidable. >>>> >>>>In the Chompster game, 37 .. a4 by Chompster was a bad mistake, >>>>gifting Arasan with an outside passer: >>>> >>>>[D] 2q1r1k1/5pp1/5bp1/p7/4PQ2/1Br5/P4RPP/5R1K b - - 0 1 >>>> >>>>But the game got into a bishop of opposite colors ending and was >>>>drawn. I actually made the draw manually, which brought a protest >>>>from sfarrell: he is right that under the rules this should not >>>>have been done without the TD's consent. It seems several programs >>>>broke this rule in this round. >>>> >>>>I was disappointed to lose the last game against cEng (witchess). It >>>>had a very unusual opening: >>>> >>>>[Event "?"] >>>>[Site "chessclub.com"] >>>>[Date "2005.02.13"] >>>>[Round "?"] >>>>[White "witchess"] >>>>[Black "Arasan 9.0"] >>>>[Result "1-0"] >>>>[ECO "C28"] >>>>[WhiteElo "2397"] >>>>[BlackElo "2594"] >>>>[TimeControl "3000+3"] >>>> >>>>1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. Nf3 Nxe4 5. Nxe4 d5 6. Bd3 dxe4 >>>>7. Bxe4 Ne7 8. c3 f5 9. Bc2 e4 10. Ne5 Qd5 11. f4 exf3 12. Nxf3 Qe6+ >>>>13. Kf2 Qb6+ 14. d4 Be6 15. Ba4+ c6 16. Re1 Bd5 17. Bb3 O-O-O 18. Bg5 >>>>Qc7 19. Bxd5 cxd5 20. Qe2 Qb6 21. c4 Rd7 22. cxd5 Kb8 23. Qe5+ Ka8 >>>>24. d6 Rxd6 25. Bxe7 Bxe7 26. Qxe7 Rc8 27. Kg1 Rg8 28. Rac1 Rdd8 >>>> 1-0 {ArasanX resigns} >>>> >>>>I analyzed this overnight with Crafty but didn't find where Arasan >>>>went wrong. I didn't like 7.. Ne7 and 7.. Bd6 seems to be better - >>>>this has occurred in a few games with this line. After Ne7, Arasan >>>>had its Bishop locked in and failed to develop it. >>> >>>I watched this game live and found it a very strong game from witchess. >>>Especially because it plays without book. Let's be honest there. That's 700 >>>rating points (a real strong book). >> >>How did you get that estimate? >> >>Do you have one tournament when a program with no book performed 700 elo worse >>than the same program with book? >> >>Uri > >Well.... I love that you continue missing the importance of the opening book. It >will mean more easy points for your opponents! > >I have been reading your same "cantaleta" (*) for years and I have seen how >Movei has been beated by books well tuned. > >Hopefully, you understand that in 20 years. Who knows...... > > >Arturo. > >(*) Cantaleta = a repetitive nonsense made for years without showing any proof >on your behalf. It certainly doesn't show the chess-thinking strength of the program when masked with a good book. A book is basically a thing you can buy, and is a regrettable necesity in chess program competitioning. S.Taylor
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.