Author: Eelco de Groot
Date: 11:20:25 01/18/01
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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
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