Author: Dann Corbit
Date: 19:52:38 01/11/00
Go up one level in this thread
On January 11, 2000 at 19:55:57, Ernst A. Heinz wrote: >>Yes, exactly. Notice how the score is steadily dropping. The supercomputer >>came up with about half that number: >> >>r1bq1r1k/p4Ppp/1p3n2/2p1n3/2B5/2P1PN2/P3QPPP/R1B2RK1 b - - bm Bg4; ce -28; >> >>Which is much more in line with what would be expected from theory (the >position >>is about even for a frequently played opening position). We will see this >>behavior all the time for gambit type openings. It takes the computer a long >>time to see the benefits (if it ever does). > >Well, not so fast ... :-) > >"DarkThought WCCC'99" on a 500MHz Compaq Alpha-21264 XP1000 sees its score >steadily climbing and evaluates the position as -0.25 in iteration no. 15 >after just 35 minutes (see output below). > >00:00:14 10.02 Bg4 Rd1 Qc7 Bb3 c4 Bc2 Bxf3 a4 >=-102! (-0.80) #4861868 >00:00:36 11.01 Bg4 Rd1 Qc7 Bb3 c4 Bc2 Rxf7 Ba3 Bxf3 gxf3 =-89 (-0.70) #12185819 >00:02:04 12.01 Bg4 e4 Qe7 Bb3 Nxf7 Re1 Ne5 Kh1 Bxf3 h4 =-76 (-0.59) #40848442 >00:04:59 13.01 Bg4 e4 Qe7 Bb3 Nxf7 Re1 Ne5 Bf4 Bxf3 gxf3 =-65 (-0.51) #97842266 >00:12:55 14.01 Bg4 e4 Qe7 Re1 Bxf3 gxf3 Qd7 Rd1 Qh3 Bf4 =-55 (-0.43) #249599351 >00:35:27 15.01 Bg4 e4 Nh5 Bd5 Bxf3 gxf3 Ng6 Qc4 Nhf4 Bxf4 =-32 (-0.25) Your eval of this position seems very good. Other programs seem to have difficulty coming up with a realistic eval. pv is a bit different, though. Different by 3rd ply. Bc8g4 pe3e4 Ne5c4b qe2c4N Bg4f3n pg2f3B Qd8c7 bc1e3 Qc7f7p qc4f7Q Rf8f7q rf1d1 Nf6h5;
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