Author: Mike S.
Date: 13:49:33 12/02/01
Go up one level in this thread
On December 02, 2001 at 12:18:45, James T. Walker wrote: >On December 02, 2001 at 12:10:07, Aaron Tay wrote: > >>On December 02, 2001 at 10:04:39, James T. Walker wrote: >> >>>(...) >>>I'm interested in your experiment. What time control did you use for this test. This weren't my experiments, but by G.Rehburg published in a 6 page article in CSS 4/2001. Two PII/450 were used, time controls were 30 min/game. The positions were the Nunn Endgame Test suite (10 positions). I post the positions below in PGN; I don't have EPD at the moment. Participants were Shredder 5, Deep Fritz, GT 2.0, Junior 7, Nimzo 8, Hiarcs 7.32 and Crafty 18.07. The total result was TBS vs. No TBS: 70.5 - 69,5. But that includes a QP-Q tablebase position (10.5 - 3.5). If you remove that from the total results, it turns out 60.0 - 66.0, IOW the No TBS side was better... >(...) I find it hard to believe that any of the top programs will >lose this ending with tablebases. The opposite colored bishops make this >position a likely draw. Did you let play "with TBS" against "without TBS" (same engine)? That was how the experiment was done. According to that report, White *with* TBS lost except one, and White *without* TBS most often has drawn, in pos. #10. Regards, M.Scheidl P.S. Nunn Endgame Test Positions [Event "6/98-55 John Nunn"] [Site "?"] [Date "1998.??.??"] [Round "?"] [White "NET01: Rook Ending"] [Black "[+0400.66f2f7]"] [Result "*"] [SetUp "1"] [FEN "8/1ppr1kp1/p1p4p/8/8/5P2/PPP1RKPP/8 w - - 0 1"] [PlyCount "0"] * [Event "6/98-55 Budapest"] [Site "Budapest"] [Date "1952.??.??"] [Round "?"] [White "NET02: Barcza"] [Black "Golombek"] [Result "*"] [SetUp "1"] [FEN "8/1pk3pp/p7/3p1p2/8/3K2P1/PP2PP1P/8 w - - 0 1"] [PlyCount "0"] [EventDate "1952.??.??"] * [Event "6/98-55 John Nunn"] [Site "?"] [Date "1998.??.??"] [Round "?"] [White "NET03: Database position"] [Black "[+4000.10b2f4]"] [Result "*"] [SetUp "1"] [FEN "2q5/8/6Q1/8/1P3k2/8/1K6/8 w - - 0 4"] [PlyCount "0"] * [Event "6/98-55 Telegraph match"] [Site "?"] [Date "1896.??.??"] [Round "?"] [White "NET04: St Petersburg"] [Black "London"] [Result "*"] [SetUp "1"] [FEN "8/4k3/r4pp1/pR6/P4KP1/5P2/8/8 b - - 0 1"] [PlyCount "0"] [EventDate "1896.??.??"] * [Event "6/98-55 Dresden"] [Site "Dresden"] [Date "1936.??.??"] [Round "?"] [White "NET05: Keres"] [Black "Alekhine, Alexander"] [Result "*"] [SetUp "1"] [FEN "8/p1p1k3/1p1p2p1/3Pq2p/2P1P3/1P3QPK/P7/8 w - - 0 1"] [PlyCount "0"] [EventDate "1936.??.??"] * [Event "6/98-55 Uzhgorod"] [Site "?"] [Date "1972.??.??"] [Round "?"] [White "NET06: Holmov"] [Black "Moiseev, Viktor"] [Result "*"] [SetUp "1"] [FEN "8/p3ppk1/1p4pp/3nN3/6PP/1P3P2/P3PK2/8 w - - 0 1"] [PlyCount "0"] [EventDate "1972.??.??"] * [Event "6/98-55 Cetinje"] [Site "Cetinje"] [Date "1992.??.??"] [Round "?"] [White "NET07: Ilincic"] [Black "Cabrilo"] [Result "*"] [SetUp "1"] [FEN "7k/pp4pp/2n5/8/8/P7/1P4PP/2K1B3 b - - 0 25"] [PlyCount "0"] [EventDate "1992.??.??"] * [Event "6/98-55 Siegen"] [Site "Siegen"] [Date "1970.??.??"] [Round "?"] [White "NET08: Bellon"] [Black "Minic"] [Result "*"] [SetUp "1"] [FEN "8/8/p4Bp1/1pPb2P1/1P2kp2/P7/5K2/8 w - - 0 1"] [PlyCount "0"] [EventDate "1970.??.??"] * [Event "6/98-55 Semmering-Baden"] [Site "Semmering"] [Date "1937.??.??"] [Round "?"] [White "NET09: Eliskases"] [Black "Capablanca, J."] [Result "*"] [SetUp "1"] [FEN "8/4k3/p1B4p/2K5/1P4bP/8/8/8 b - - 0 1"] [PlyCount "0"] [EventDate "1937.??.??"] * [Event "6/98-55 Hannover"] [Site "Hannover"] [Date "1926.??.??"] [Round "?"] [White "NET10: von Gottschall"] [Black "Nimzowitsch"] [Result "*"] [SetUp "1"] [FEN "3R4/1p6/2b5/2P1k2p/p3p2P/P6r/1P2KB2/8 b - - 0 1"] [PlyCount "0"] [EventDate "1926.??.??"] *
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