Author: Ed Schröder
Date: 16:45:42 01/18/01
Go up one level in this thread
On January 18, 2001 at 14:20:25, Eelco de Groot wrote: >On January 18, 2001 at 11:00:45, Joshua Lee wrote: > >>On January 18, 2001 at 05:16:23, Eelco de Groot wrote: >> >>>On January 18, 2001 at 04:29:12, Shep wrote: >>> >>>> >>>>These are the positions Junior 6a couldn't solve in one minute on a quad PIII: >>>> >>>>13,21,25,52,62,65,71,75 >>>> >>>>I didn't compare your numbers because of the length of your list, but since >>>>there are only 8 unsolved in my list, at least 7 of yours are solved by Junior. >>>> >>>>--- >>>>Shep >>> >>> >>I swear #13 is also on the LCTII test and in that case Hiarcs 7.32 and others >>solve this, Hiarcs also solves a few of these. >>to shep: the list was 13,21,25,27,28,29,31,44,49,52,55,58,62,68,71 looks like >>75 is already solved according to de Groot, but then again we are not all >>running these for the same length of time. > > >Hi Joshua, yes, you are right, I looked and position #13 is also in LCT II! >Saviely Grigorevich Tartakover, 1887-1956, and Akiba Rubinstein, 1882-1958, two >giants from the past century.. Didn't have laptops then, maybe they just >witnessed the invention of the first transistor and the very first big >computers. Would they have heard of Claude Shannon and the chess-program he >developed on paper? I suppose it is possible.. > >This is the only position from Dann I let the computer look at myself by the way >so I don't know about any of the others fro the set. > >[D]r1b2r1k/pp2q1pp/2p2p2/2p1n2N/4P3/1PNP2QP/1PP2RP1/5RK1 w - - id Tartakover - >Rubinstein (POS-7); bm c3d1 > >So far Q5T didn't have much luck really solving this, after the analysis I gave >in the first post "Q5T" changed back to 1.Qg5.. > >11:07 13.04 0.49 1.Qg5 Be6 2.Qe3 Ng6 3.Ng3 Rad8 4.Nf5 >37:39 14.00 0.46 1.Qg5 Be6 2.Qe3 > >I stopped the analysis and looked at the same position two plies further, after >1.Nd1 Ng6. Last news is that the score is now up to +0.65: > > >Last Move : 1.Nd1 (Black to play) > >Last Move : 1... Ng6 (White to play) > >00:00 05.00 -0.51 1..Ng6 2.Ne3 Rd8 3.Nf4 Ne5 >00:00 05.00 0.57 2.Nf4 Nxf4 3.Rxf4 Kg8 4.Ne3 Be6 >00:01 06.00 0.54 2.Nf4 Ne5 3.Ne3 g6 4.Qh4 Be6 >00:01 06.01 0.66 2.Ne3 Qe5 3.Nf4 Kg8 4.Nc4 Qc7 >00:02 07.00 0.55 2.Ne3 Qe5 3.Nf4 Nxf4 4.Qxf4 Qxf4 5.Rxf4 Be6 6.e5 >00:03 07.01 0.70 2.Nf4 Nxf4 3.Rxf4 Be6 4.Rh4 g5 5.Rh5 Rad8 >00:05 08.00 0.62 2.Nf4 Nxf4 3.Rxf4 Be6 4.Ne3 Qc7 5.Kh2 Qe5 6.Nd1 >00:13 09.00 0.45 2.Nf4 Nxf4 3.Rxf4 Be6 4.Nc3 Kg8+ 5.Qh4 Qd6 6.Qh5 g6 >00:21 09.01 0.55 2.Ne3 Rd8 3.Nf4 Nxf4 4.Qxf4 b5 5.Nf5 Bxf5 6.Qxf5+ a5 >01:27 10.00 0.73 2.Ne3 Kg8 3.Nf5 Bxf5 4.exf5 Ne5 5.Re2 Qf7 6.Nxf6+ >02:01 11.00 0.60 2.Ne3 Kg8 3.Nf5 Bxf5 4.exf5 Ne5 5.Re2 Rae8 6.Rfe1 Qf7 >7.Nxf6+ >07:59 12.00 0.69 2.Ne3 Re8 3.Nf4 Ne5 4.Nf5 Qc7 5.Ne2 >24:23 13.00 0.60 2.Ne3 Kg8 3.Nf5 Bxf5 >26:21 14.00 0.74 2.Ne3 Re8 3.Nf4 Nxf4 4.Rxf4 Rf8 5.Rh4 Rf7 6.Nc4 >58:20 15.00 0.65 2.Ne3 b6 3.Nf5 Bxf5 4.exf5 Ne5 5.Nf4 > >Still not very convincing but thanks to you we can have some confidence that >1.Nd1 IS the right move! Stop the presses! I read that Peter Ackermann claims, >as you also said, that Hiarcs and a few others can solve this quickly. Does >anyone know if they have a big score soon, I mean, better than 0.65?. > >You are right about #75, Crafty already solved that within the 10 hours I >believe Dann let the computer pound on this (36000 seconds?). It is impressive >that Junior found so many of them in 1 minute. > > Eelco The Q5T personality is a great personality for quickly finding tactics as you have showed us many times. On this position Q5T simply fails and guess what? -> it is a quiet positional position and then syddenly things don't work anymore. When you take the normal Rebel, it picks Nd1 instantly moving the Knignt to d1 / e3 / f5 were it belongs. Ed -------------- Loading... Engine version : Rebel Century 2.01 Hash table size : 40 Mb r1b2r1k/pp2q1pp/2p2p2/2p1n2N/4P3/1PNP2QP/1PP2RP1/5RK1 w - - 00:00 06.00 0.08 1.Na4 b6 2.Nc3 Be6 3.Ne2 Rad8 00:02 08.00 0.13 1.Nd1 Be6 2.Ne3 Rad8 3.Ra1 a6 4.Nf5 Bxf5 5.Rxf5 00:06 09.00 0.20 1.Nd1 Be6 2.Ne3 Rad8 3.Nf4 Bc8 4.Ra1 a6 5.Nf5 00:09 10.00 0.21 1.Nd1 Be6 2.Ne3 Rad8 3.Nf4 Bc8 4.Nf5 Bxf5 5.exf5 Rfe8 6.Ne6 00:21 11.00 0.12 1.Nd1 Rd8 2.Ne3 b5 3.Ra1 a5 4.Raf1 Ng6 5.Nf5 Bxf5 6.Rxf5 Kg8 01:05 12.00 0.17 1.Nd1 Rd8 2.Ne3 b5 3.Nf5 Bxf5 4.exf5 c4 5.dxc4 bxc4 6.Nf4 cxb3 7.Ne6 Rdb8 8.cxb3 02:04 13.00 0.14 1.Nd1 Be6 2.Nf4 Bg8 3.Ne3 Rad8 4.Ne2 Be6 5.Ra1 a6 6.Nf4 Bg8 7.Nf5 Qc7 8.Qh4 g6 9.Qg5
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