Author: Matthew White
Date: 16:25:34 06/19/03
Go up one level in this thread
On June 19, 2003 at 18:46:42, George Tsavdaris wrote: >Below is some analysis of a few Nolot positions with todays top engines >on a rather slow PIV-1500 MHz (this means that solution times can be >divided 2 or 3 times). > >Although not all positions were solved and the positions were solved by >different engines,it's surely a big step in computer chess that they >started to solve these positions. >Before 2-3 years, the previous generation of chess-engines wasn't able to >solve more than one or two positions. > >A very good place for find more about Nolot suite is: >http://www.seanet.com/~brucemo/nolot/nolot.htm > >------------------------------------------------------------------------------ >NOLOT 1 - Kasparov-Karpov, 20th game 1990 > >Kasparov played Nxh6!! >-Gambit Tiger 2.0 finds this in 49 seconds and gives >a positive score after 24 minutes. If i used a PIV-3000 MHz then it >would see a win after 8-10 min. >-Deep Thought-2 could not find the move in one hour time. > >[D]r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1 > >Analysis by Gambit Tiger 2.0: > >1.Qd1-d4 Nd5-f4 2.Rg3-e3 d6-d5 3.Ne4-f6 Re6xe3 4.f2xe3 > ² (0.36) Depth: 7 00:00:00 114kN >1.Qd1-d4 c4-c3 2.Rg3xc3 Nd5xc3 3.Bb2xc3 d6-d5 4.Bc3xb4 d5xe4 5.Bb4-c3 > = (0.20) Depth: 7 00:00:00 118kN >1.Qd1-d4 c4-c3 2.Rg3xc3 Nd5xc3 3.Bb2xc3 d6-d5 4.Bc3xb4 d5xe4 5.Bb4-c3 Re6-d6 > = (-0.06) Depth: 8 00:00:00 236kN >1.Qd1-d4 c4-c3 2.Rg3xc3 > = (-0.06) Depth: 9 00:00:02 538kN >1.Qd1-d4 c4-c3 2.Bb2xc3 Nd5xc3 3.Qd4xb4 Nc3xe4 4.Qb4xb7 Ra8-b8 5.Qb7xb8 Qe8xb8 >6.Bb1xe4 > µ (-0.86) Depth: 10 00:00:04 1273kN >1.Qd1-d4 c4-c3 > µ (-0.86) Depth: 11 00:00:16 4689kN >1.Qd1-d4 c4-c3 2.Bb2xc3 Nd5xc3 3.Qd4xb4 Nc3xe4 4.Qb4xb7 Ra8-b8 5.Qb7xb8 Qe8xb8 >6.Bb1xe4 d6-d5 7.Re1-b1 > µ (-1.20) Depth: 12 00:00:21 6126kN >1.Ng4xh6 c4-c3 2.Nh6-f5 c3xb2 3.Qd1-g4 Qe8-f7 4.Re1-e2 Bf8-e7 5.Nf5xe7 Qf7xe7 >6.Re2xb2 Ra8-e8 7.Ne4-g5 > ³ (-0.66) Depth: 12 00:00:49 14924kN >1.Ng4xh6 c4-c3 2.Nh6-f5 c3xb2 3.Qd1-g4 Ra8-c8 4.Nf5xg7 Re6-g6 5.Ng7xe8 Rg6xg4 >6.Rg3xg4 Rc8xe8 7.Rg4-g6 > µ (-0.74) Depth: 13 00:02:11 39698kN >1.Ng4-e3 Re6xe4 2.Bb1xe4 Qe8xe4 3.Ne3xd5 Qe4xd5 4.Qd1-c1 Qd5-f5 5.Qc1xh6+ Qf5-h7 >6.Qh6-e6 Nb4-d3 7.Re1-e2 Nd3xb2 8.Re2xb2 > ³ (-0.58) Depth: 13 00:03:06 55610kN >1.Ng4-e3 Re6xe4 2.Bb1xe4 Qe8xe4 3.Ne3xd5 Qe4xd5 4.Qd1-c1 Qd5-f5 5.Qc1xh6+ Qf5-h7 >6.Qh6-g5 Nb4-d3 7.Re1-e2 Nd3xb2 8.Re2xb2 > ³ (-0.70) Depth: 14 00:04:08 73542kN >1.Ng4xh6 c4-c3 2.Nh6-f5 c3xb2 3.Qd1-g4 Ra8-c8 4.Qg4-h4+ Kh8-g8 5.Kg1-h2 Rc8-c4 >6.Nf5-h6+ Re6xh6 7.Qh4xh6 Qe8-f7 8.Rg3-g4 > ³ (-0.48) Depth: 14 00:06:38 121399kN >1.Ng4xh6 c4-c3 2.Nh6-f5 c3xb2 3.Qd1-g4 Ra8-c8 4.Qg4-h4+ Kh8-g8 5.Kg1-h2 Rc8-c4 >6.Nf5-h6+ Re6xh6 7.Qh4xh6 Qe8-f7 8.Rg3-g4 > ³ (-0.48) Depth: 14 00:08:21 152161kN >1.Ng4xh6 c4-c3 2.Nh6-f5 c3xb2 3.Qd1-g4 g7-g6 4.Kg1-h2 Qe8-d7 5.Nf5-d4 Bb7-c8 >6.Nd4xe6 Qd7xe6 7.Qg4-g5 Qe6-f7 8.Re1-d1 > ² (0.36) Depth: 15 00:24:21 462835kN > Nimzo 8 sees the correct move even faster... (still waiting for it to see a win, though) New game r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1 Analysis by Nimzo 8: 1.Qc1 ³ (-0.35) Depth: 3/14 00:00:00 1.Qc1 Nd3 2.Bxd3 µ (-0.79) Depth: 3/14 00:00:00 1.Qc1 Nd3 2.Bxd3 µ (-0.79) Depth: 3/14 00:00:00 1.Qc1 Nd3 2.Bxd3 µ (-0.79) Depth: 3/14 00:00:00 1.Bd4 c3 2.Re2 ³ (-0.66) Depth: 3/14 00:00:00 1.Bd4 c3 2.Re2 ³ (-0.66) Depth: 3/14 00:00:00 1.Qd2 h5 2.Ne3 ³ (-0.65) Depth: 3/14 00:00:00 1.Qd4 ³ (-0.64) Depth: 3/14 00:00:00 1.Qd4 Rc8 2.a5 ³ (-0.51) Depth: 3/14 00:00:00 1.Qd4 Rc8 2.a5 ³ (-0.51) Depth: 3/14 00:00:00 1.Qe2 ³ (-0.48) Depth: 3/14 00:00:00 1.Qe2 Nb6 2.Qd2 ³ (-0.49) Depth: 3/14 00:00:00 1.Qe2 Rc8 2.Qd2 h5 3.Ne3 µ (-0.91) Depth: 5/17 00:00:00 1.Qd2 µ (-0.90) Depth: 5/17 00:00:00 1.Qd2 c3 2.Bxc3 Nxc3 3.Qxc3 ³ (-0.56) Depth: 5/17 00:00:00 1.Qd4 ³ (-0.55) Depth: 5/17 00:00:00 1.Qd4 Rc8 2.Qa7 Bc6 3.a5 ³ (-0.41) Depth: 5/17 00:00:00 1.Qd4 c3 2.Bxc3 Rxe4 ³ (-0.69) Depth: 6/19 00:00:00 330kN 1.Qd4 Rc8 2.a5 Nc2 3.Bxc2 Rxe4 µ (-0.79) Depth: 7/20 00:00:01 330kN 1.Qd4 c3 2.Bxc3 Nxc3 3.Qxb4 Nxe4 4.Qxb7 Nxg3 5.Rxe6 Ra7 µ (-0.78) Depth: 8/22 00:00:03 2393kN 1.Qd4 µ (-1.23) Depth: 9/23 00:00:06 6468kN 1.Qd4 -+ (-1.83) Depth: 9/23 00:00:07 7577kN 1.Qd4 c3 2.Rxc3 Nxc3 3.Bxc3 a5 4.Bxb4 axb4 5.Qxb4 Bxe4 6.Rxe4 -+ (-1.97) Depth: 9/23 00:00:08 8793kN 1.Nxh6 -+ (-1.96) Depth: 9/23 00:00:12 12485kN 1.Nxh6 µ (-1.36) Depth: 9/23 00:00:16 17281kN 1.Nxh6 c3 2.Re2 Rxh6 3.Nxc3 Qh5 4.Qd2 Nf6 5.Rg5 Qh4 µ (-1.32) Depth: 9/23 00:00:17 18504kN 1.Ne3 µ (-1.31) Depth: 9/23 00:00:26 29617kN 1.Nxh6 c3 2.Re2 Rxh6 3.Nxc3 Qh5 4.Qd2 Nf6 5.Rg5 Qh4 µ (-1.32) Depth: 9/23 00:00:26 29617kN 1.Nxh6 c3 2.Re2 Rxh6 3.Nxc3 Qh5 4.Nxd5 Nxd5 5.Qd2 Nf6 6.Rb3 -+ (-1.41) Depth: 10/25 00:00:36 41774kN (White, Cupertino 19.06.2003)
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