Author: Vincent Lejeune
Date: 03:00:52 07/19/03
I will let run all nolot positions overnight with Chesstiger 15.0 (I promised all chess Valentin Albillo positions some time ago, they'll come) Barton 2800+, 384 MB HT No new move after 8h Get the right move is not difficult even some years ago for engine but get +1 with a normal engine (no favor sac and no favor attack) is good french notation, sorry... Nolot.1,H r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1 Analysis by Chess Tiger 15.0: 1.Dd4 ± (1.06) Profondeur: 1 00:00:00 1.Dd4 ² (0.66) Profondeur: 1 00:00:00 1.Dd4 c3 2.Fxc3 Cxc3 3.Txc3 Fxe4 4.Fxe4 ± (0.88) Profondeur: 2 00:00:00 1.Dd4 Tc8 2.Ce3 ² (0.62) Profondeur: 3 00:00:00 6kN 1.Dd4 Cd3 2.Fxd3 cxd3 3.Txd3 Cf4 ± (0.84) Profondeur: 4 00:00:00 10kN 1.Dd4 Cd3 2.Fxd3 cxd3 3.Txd3 Cf4 4.Tde3 ± (0.84) Profondeur: 5 00:00:00 22kN 1.Dd4 Cf4 2.Cxh6 Fxe4 3.Txe4 Txe4 4.Dxe4 Ce2+ 5.Rh2 Dxe4 6.Fxe4 Cxg3 7.Fxa8 ² (0.44) Profondeur: 6 00:00:00 56kN 1.Dd4 Cf4 2.Cxh6 Ch5 3.Cf5 Cxg3 4.fxg3 ² (0.64) Profondeur: 7 00:00:00 128kN 1.Dd4 Cf4 2.Dxc4 Fxe4 3.Txe4 d5 4.Txe6 dxc4 5.Txe8 Txe8 = (0.18) Profondeur: 8 00:00:00 208kN 1.Dd4 c3 2.Txc3 Cxc3 3.Fxc3 d5 4.Fxb4 dxe4 5.Fc3 Td6 6.Dc4 ³ (-0.52) Profondeur: 9 00:00:01 604kN 1.Dd4 c3 2.Txc3 Cxc3 3.Fxc3 d5 4.Fxb4 dxe4 5.Fc3 Td6 6.Dc4 ³ (-0.52) Profondeur: 10 00:00:03 1444kN 1.Dd4 c3 2.Fxc3 Cxc3 3.Dxb4 Cxe4 4.Dxb7 Tb8 5.Dxb8 Dxb8 6.Fxe4 µ (-0.86) Profondeur: 11 00:00:06 2807kN 1.Dd4 c3 2.Fxc3 Cxc3 3.Dxb4 Cxe4 4.Dxb7 Tb8 5.Dxb8 Dxb8 6.Fxe4 µ (-0.86) Profondeur: 12 00:00:17 7897kN 1.Ce3 Txe4 2.Fxe4 Dxe4 3.Cxd5 Dxd5 4.Dc1 Df5 5.Dxh6+ Dh7 6.De6 ³ (-0.52) Profondeur: 12 00:00:30 14496kN 1.Ce3 Txe4 2.Fxe4 Dxe4 3.Cxd5 Dxd5 4.Dc1 Df5 5.Dxh6+ Dh7 6.De6 Cd3 7.Te2 ³ (-0.52) Profondeur: 13 00:00:42 20337kN 1.Ce3 Txe4 2.Fxe4 Dxe4 3.Cxd5 Dxd5 4.Dc1 Df5 5.Dxh6+ Dh7 6.Dg5 µ (-0.80) Profondeur: 14 00:01:34 47344kN 1.Cxh6 c3 2.Cf5 cxb2 3.Dg4 Df7 4.Rh2 Rg8 5.Cg5 Tg6 6.Dh4 Txg5 = (-0.24) Profondeur: 14 00:04:31 140573kN 1.Cxh6 c3 2.Cf5 cxb2 3.Dg4 Fc8 4.Te2 Th6 5.Cexd6 Dh5 6.Cxh6 Fxg4 7.Cdf7+ Dxf7 ² (0.50) Profondeur: 15 00:10:22 326146kN 1.Cxh6 c3 2.Cf5 cxb2 3.Dg4 Fc8 4.Te2 Th6 5.Cexd6 Dh5 6.Dxh5 Txh5 7.Cxg7 ² (0.48) Profondeur: 16 00:22:51 732319kN 1.Cxh6 c3 2.Cf5 cxb2 3.Dg4 Fc8 4.Te2 Th6 5.Cexd6 Dh5 6.Cxh6 Fxg4 7.Cdf7+ Dxf7 ² (0.48) Profondeur: 17 00:57:55 1890842kN 1.Cxh6 c3 2.Cf5 cxb2 3.Dg4 Fc8 4.Dh4+ Th6 5.Cxh6 gxh6 6.Te2 De5 7.Cg5 Df6 8.Te8 ± (1.38) Profondeur: 18 04:17:48 8529558kN Post from 1994 about Nolot and Nolot 1 : From: mfb@cnam.cnam.fr (Marc-Francois Baudot) ! fhh@watson.ibm.com (Feng-Hsiung Hsu) writes: ! ! >Sometime ago, the following 11 positions collected by Pierre Nolot were ! >posted to rgc. Pierre claimed that no computers can solve any of them ! >in reasonable time (and no micros in even a few weeks). A long while back, he ! >might be right. At this point, a few of them are solvable even under ! >tournament time control. The ones that we tried overnight are all solvable ! >in a few hours. DT-2 was searching around 3 million nodes/sec during the ! >runs. The time probably would be reduced by 5-30 times for the harder ! >problems if the machine has a better quiescence search. ! ! I just phoned Pierre, and he admits he is very impressed by DT-2'sresults! ! So am I, and we thank you for the time you have spent on these positions. ! I'll post the solutions according to Pierre as given in Gambisco ! separately, but first I'll just give you his comments on DT's outstanding ! results (much much better than the best micros) ! ! ! >1 ;r3;q;b1;k/1;b4;p1/;p2;p;r2;p/3;n4/p;n;p1n1n1/6rp/1b3pp1/1b1qr1k1/40 ! ! >Source: Kasparov-Karpov, Lyon 1990. ! ! >Kasparov played Nh6 here. DT-2 agreed with Kasparov's analysis after ! >going down the line given in Informant, but could not find the move ! >on its own in one hour time. When letting it run overnight, it produced ! >Nh6 after 8 hours (but would play it with a 6 hours/move time control; that ! >is, it got first indication that the combination might work after about 6 ! >hours), with the variation 1. Nh6! c3 2. Nf5 cb2 3. Qg4 ... which wins for ! >white. ! ! Very good. This is not an easy one!
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