Author: Matthew Hull
Date: 10:22:33 02/04/03
Go up one level in this thread
On February 04, 2003 at 12:20:21, Vladimir Medvedev wrote: >GreKo is not a great "pruner", but it reaches ply=4 with 2155 nodes seen. >You can look a GreKo's source code (C++), it is not very complex. Vladimir, On FICS, Greko will sometimes stop playing moves early in the game with 10 minutes on the clock, losing on time. It is not a connection problem as it immediately posts a seek after losing. Very strange. An example is the last game from "notalent" played last night. Regards, Matt > >White(1): analyze > >Analyze mode >Type "exit" to stop analyzing >White(1): > 1 -5 0 22 1. Nf3 > 2 -26 0 92 1. Nf3 Nf6 > 3 -3 2 656 1. Nf3 Nf6 2. d4 > 4 -23 4 2155 1. Nf3 Nf6 2. d4 Nd5 > 5 -1 9 6175 1. Nf3 Nf6 2. d4 Nc6 3. Bf4 > 6 -18 33 21658 1. Nf3 Nf6 2. d3 Nc6 3. e4 e5 > 7 4 153 102631 1. Nf3 d6 2. e3 Nd7 3. Bc4 Ne5 4. Bd5 > >>Here is the output of Crafty from the opening position with a depth of 4: >>Black(1): book off >>book file disabled. >>Black(1): new >>White(1): sd 4 >>search depth set to 4. >>White(1): noise 1 >>noise level set to 1. >>White(1): go >> time surplus 0.00 time limit 30.00 (3:30) >> depth time score variation (1) >> 1 0.04 0.11 1. Nf3 >> 1 0.06 0.25 1. e4 >> 1-> 0.10 0.25 1. e4 >> 2 0.13 -- 1. e4 >> 2 0.16 -0.19 1. e4 d5 >> 2-> 0.20 -0.19 1. e4 d5 >> 3 0.22 0.05 1. e4 d5 2. Nc3 dxe4 3. Nxe4 >> 3 0.26 0.11 1. Nf3 d5 2. d4 >> 3-> 0.29 0.11 1. Nf3 d5 2. d4 >> 4 0.32 -0.19 1. Nf3 d5 2. d4 Nf6 >> 4-> 0.36 -0.19 1. Nf3 d5 2. d4 Nf6 >> time=0.38 cpu=5% mat=0 n=1961 fh=87% nps=5k >> ext-> chk=15 cap=9 pp=0 1rep=0 mate=0 >> predicted=0 nodes=1961 evals=1163 >> endgame tablebase-> probes done=0 successful=0 >> >>1961 nodes. >> >>Here is Quark 176b: >>go >> 1 15 0 2 g1h3! >> 1 39 5 4 g1f3! >> 1 42 8 13 d2d4! >> 1 42 11 23 d2d4 >> 2 9 14 27 d2d4? >> 2 0 17 49 d2d4 d7d5 >> 2 0 20 127 d2d4 d7d5 >> 3 31 25 175 d2d4! >> 3 39 29 228 d2d4 d7d5 g1f3 >> 3 42 32 652 e2e4! >> 3 42 36 840 e2e4 e7e5 f1c4 >> 4 9 39 908 e2e4? >> 4 9 43 1493 e2e4 e7e5 f1c4 b8c6 >> 4 9 47 2193 e2e4 e7e5 f1c4 b8c6 >> >>2193 nodes. Very similar. >> >>>I'll sift through the websites you sent, and >>>hopefully I'll stumble across something that turns on the light bulb for me. >>>Thanks again Dann!
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