Author: Uri Blass
Date: 13:59:55 12/05/05
Go up one level in this thread
On December 05, 2005 at 15:54:46, Uri Blass wrote: >On December 05, 2005 at 15:16:58, Uri Blass wrote: > >>On December 05, 2005 at 15:09:38, George Tsavdaris wrote: >> >>>On December 05, 2005 at 14:53:02, Uri Blass wrote: >>> >>>r1b1kn1r/2q2pb1/p1p3p1/2P1p2n/Pp2P2p/2N1BP2/1P1QBNPP/R4RK1 w kq - 0 17 >>>>> >>>>>no program in the world found the killer 17. Nc3-d5 !! since the release of >>>>>Rybka. >>>>> >>>>> 12 00:21 1.909.618 95.480 -0,04 Sd5 cd5: ed5: h3 g3 Sf6 c6 S8h7 Tac1 Dd6 >>>>> 13 00:46 3.574.942 81.248 -0,02 Sd5 cd5: ed5: h3 g3 Sf6 a5 S8h7 d6 Db7 >>>> >>>>There is only one problem with that analysis >>>> >>>>My Rybka with 512 mbytes hash does not find it >>>> >>>>1.Na2 a5 2.Rad1 Nf4 3.Bc4 Be6 4.Qc2 Bxc4 5.Qxc4 N8e6 >>>> = (-0.05) Depth: 17 00:08:56 39676kN >>>> >>> >>>So along with "mine" we have 3 different results: >>>"Mine" finds it at ply 14 in 2 minutes and 12 seconds in my AMD 3500+ with 256 >>>MB hash. >>>"Uri's" doesn't find it after 9 minutes up to ply 17. >>>Thomas version finds it in 21 seconds at ply 12! >>> >>>Great! What a confusion......... >> >>I can add that I analyze it again and I get deterministic result in nodes and pv >>so Rybka is clearly deterministic and it seems that the problem is that other >>people used different hash or game or made Rybka learn >> >> = (-0.05) Depth: 17 00:08:36 39676kN >>1.Na2 a5 2.Rad1 Nf4 3.Bc4 Be6 4.Qc2 Bxc4 5.Qxc4 N8e6 >> = (-0.05) Depth: 18 00:17:57 76054kN >> >>(, 05.12.2005) > >It seems that Rybka 32 bits needs more than an hour to find Nd5 > >After more than an hour of search it is now at depth 19 but considers Nd5 in the >last 20 minutes after the score for Na2 went down to -0.13 > >Uri It needs 2 hours to find it on A3000 64 bit on faster hardware may need 1 hour Here is the full analysis New game, [D]r1b1kn1r/2q2pb1/p1p3p1/2P1p2n/Pp2P2p/2N1BP2/1P1QBNPP/R4RK1 w kq - 0 1 Analysis by Rybka 1.0 Beta 32-bit: 1.Na2 ² (0.29) Depth: 3 00:00:00 1.Na2 = (0.24) Depth: 4 00:00:00 1.Na2 Ne6 ² (0.28) Depth: 5 00:00:00 1.Na2 Ne6 2.Nxb4 = (0.24) Depth: 6 00:00:00 8kN 1.Na2 a5 2.Qd6 Ne6 = (0.20) Depth: 7 00:00:00 19kN 1.Na2 a5 2.Qd6 Ne6 3.Ng4 = (0.11) Depth: 8 00:00:00 37kN 1.Na2 a5 2.Qd6 Ne6 3.Bc4 Nhf4 = (0.19) Depth: 9 00:00:01 79kN 1.Na2 a5 2.Qd6 Ne6 3.Bc4 Nhf4 4.Nd3 = (0.12) Depth: 10 00:00:01 132kN 1.Na2 a5 2.Qd6 Ne6 3.Bc4 Nhf4 4.Rad1 Ba6 = (0.20) Depth: 11 00:00:04 309kN 1.Na2 a5 2.Qd6 Ne6 3.Bc4 Ba6 4.Bxa6 Rxa6 5.Qxc7 Nxc7 = (0.09) Depth: 12 00:00:07 596kN 1.Na2 a5 2.Qd6 Ne6 3.Bc4 Ba6 4.Bxa6 Rxa6 5.Qxc7 Nxc7 = (0.07) Depth: 13 00:00:16 1299kN 1.Na2 a5 2.Rad1 Ne6 3.Qd6 Qxd6 4.Rxd6 Nhf4 5.Bc4 Ba6 = (-0.09) Depth: 14 00:00:49 3947kN 1.Na2 a5 2.Rfd1 Ne6 3.Qd6 Qxd6 4.Rxd6 Nhf4 5.Bc4 h3 = (0.04) Depth: 15 00:02:44 12367kN 1.Na2 a5 2.Rfd1 Ne6 3.Qd6 Qxd6 4.Rxd6 Nhf4 5.Bc4 h3 = (0.00) Depth: 16 00:03:46 17461kN 1.Na2 a5 2.Rad1 Nf4 3.Bc4 Be6 4.Qc2 Bxc4 5.Qxc4 N8e6 = (-0.05) Depth: 17 00:08:36 39676kN 1.Na2 a5 2.Rad1 Nf4 3.Bc4 Be6 4.Qc2 Bxc4 5.Qxc4 N8e6 = (-0.05) Depth: 18 00:17:57 76054kN 1.Na2 a5 2.Bc4 Nf4 3.Nc1 h3 4.g3 Ng2 5.Ncd3 Nxe3 = (-0.13) Depth: 19 00:40:10 181603kN 1.Nd5 cxd5 2.exd5 h3 3.g3 Nd7 4.Rac1 Ndf6 5.Rfd1 0-0 = (0.00) Depth: 19 02:03:35 441900kN (, 06.12.2005)
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