Author: Uri Blass
Date: 15:26:46 11/30/01
Go up one level in this thread
On November 30, 2001 at 17:57:18, Ed Schröder wrote: >On November 30, 2001 at 14:49:45, Uri Blass wrote: > >> >>[D]rr6/q2kbp2/bnp1p2p/pp1pP1pP/2nP2P1/P1P2N2/NP3P2/1KBRQB1R w - - 0 25 >> >>Junior played Ka1 and lost >> >>here is yace(only material version) logfile for that position(it was slowed down >>by a big factor in the first seconds so the times are not important) >> >>It was using the following material values: >>pawn:0.8,knight 3.4 bishop 3.5,rook 5,queen 10.01 >> >>I prefer 1,3,5,9 but the values are the values from the version that I got from >>the programmer >> >> >>You can see that b4 has a stable score at deothes 16,17 of 0.1 pawns that means >>an advantage of only bishop for a knight >>After Ka1 white is losing a pawn >> >>You can also see that Junior7 also likes Ka1 after few minutes. >> >>I believe that b4 could at least give Junior better practical chances to save >>the game against piket. >> >>I also believe that computers can practically by good defence win games or at >>least draw against king attacks of humans when the hardware gets faster >> >>Even if the computer gets into a bad position humans are going to have big >>problems to find the right moves against correct defence >> >>What is your opinion? > > >I wonder if Ka1 matters at all, Rebel also needs quite some time to >switch to b4. > >Ed > >================================================= > >00:00:10 10.00 -0.37 1.Bd3 b4 2.Bc2 bxa3 3.b3 Na4 4.Qg1 > Kc8 5.Nd2 (8) > >00:00:19 10.02 -0.31 1.Nd2 b4 2.cxb4 axb4 3.Nxc4 Nxc4 > 4.a4 b3 5.Bxc4 Bxc4 6.Nc3 c5 (11) > >00:01:10 10.11 -0.19 1.Qe2 b4 2.Qc2 >00:01:24 10.14 -0.18 1.b4 axb4 2.Bxc4 >00:01:28 10.15 0.31 1.Ka1 Ke8 2.Bd3 Nd7 3.Qe2 b4 4.axb4 > axb4 (84) > >00:01:52 11.00 0.16 1.Ka1 Nc8 2.Bxc4 bxc4 3.Qe2 Rb7 > 4.Qc2 (88) > >00:02:15 12.00 0.14 1.Ka1 Nc8 2.Bxc4 bxc4 3.Qe2 Rb7 > 4.Qc2 (125) > >00:04:40 13.00 -0.86 1.Ka1 b4 2.Nd2 Nxd2 >00:05:03 13.01 -0.18 1.b4 axb4 2.Bxc4 >00:08:47 14.00 -0.30 1.b4 Bc8 Yace failed high on 25.Bxc4 at depth 14(I may give it a long time to analyze) Junior also liked 25.Bxc4 after finishing iteration 21 I prefer b4 and after 25.Bxc4 bxc4 seems to be the correct move and not Nxc4 that is suggested by yace and Junior. Junior 6 - Piket,J [D]rr6/q2kbp2/bnp1p2p/pp1pP1pP/2nP2P1/P1P2N2/NP3P2/1KBRQB1R w - - 0 1 Analysis by Yace 0.99.56: 25.Bg2 Rf8 26.Bh3 Bb7 27.Bg2 = (0.22) Depth: -1 00:00:00 17kN 25.Be2 b4 26.cxb4 Kc8 = (0.23) Depth: -1 00:00:00 17kN 25.Be2 Rf8 26.Nxg5 hxg5 27.Bxg5 = (0.22) Depth: -1 00:00:00 17kN 25.Bg2 Rf8 26.Bh3 Bb7 27.Bg2 = (0.22) Depth: -1 00:00:00 17kN 25.Bh3 Bb7 26.Bg2 Rc8 = (0.23) Depth: -1 00:00:00 17kN 25.Bh3 Re8 26.Kc2 Bb7 27.Bg2 = (0.23) Depth: -1 00:00:00 17kN 25.Kc2 Na4 26.b3 Re8 = (0.24) Depth: -1 00:00:00 17kN 25.Kc2 Re8 26.Bg2 Bb7 27.Be3 ² (0.30) Depth: -1 00:00:00 17kN 25.Kc2 Nc8 26.Bxc4 bxc4 27.Kd2 Rb3 28.Ke2 = (0.25) Depth: -1 00:00:00 17kN 25.Kc2 Nc8 26.Bd3 b4 27.Bxc4 dxc4 28.Kd2 Ke8 = (0.23) Depth: -1 00:00:01 224kN 25.Bg2 Rf8 26.Kc2 f5 27.exf6 Bxf6 28.Ne5+ Kd6 29.Nxc4+ Kd7 = (0.24) Depth: -1 00:00:02 463kN 25.Bg2 Rf8 26.Kc2 Bb7 27.Nxg5 hxg5 28.Bxg5 = (0.24) Depth: -1 00:00:02 463kN 25.Bd3 b4 26.cxb4 axb4 27.Nxb4 Bxb4 28.Qxb4 Kc7 = (0.25) Depth: -1 00:00:03 679kN 25.Bd3 Bb7 26.Kc2 Re8 27.Bd2 c5 28.Be3 = (0.25) Depth: -1 00:00:03 679kN 25.Bd3 Nc8 26.Nd2 Nxd2+ 27.Bxd2 b4 28.Bxa6 Qxa6 29.cxb4 Qd3+ 30.Ka1 Qxd4 = (0.12) Depth: -1 00:00:07 1591kN 25.Bg2 Rf8 26.Kc2 b4 27.cxb4 axb4 28.Nxb4 Kc7 = (0.13) Depth: -1 00:00:08 1591kN 25.Bg2 Rf8 26.Kc2 Bb7 27.Bh3 f6 28.Be3 b4 = (0.21) Depth: -1 00:00:08 1842kN 25.Bg2 b4 26.cxb4 axb4 27.Nxb4 Nxa3+ 28.bxa3 Bxb4 29.Ka1 Bxe1 30.Nxe1 = (-0.19) Depth: 9 00:00:16 3541kN 25.Bg2 b4 26.axb4 axb4 27.Nxb4 Bxb4 28.cxb4 Bb5 29.Kc2 Qa2 30.Nd2 ³ (-0.48) Depth: 9 00:00:19 4030kN 25.Bd3 Nc8 ³ (-0.47) Depth: 9 00:00:19 4335kN 25.Bd3 b4 26.axb4 Bb5 27.Bxc4 Nxc4 28.Kc2 axb4 29.Nxb4 Bxb4 30.cxb4 ³ (-0.46) Depth: 9 00:00:28 6146kN 25.Kc2 Nc8 ³ (-0.45) Depth: 9 00:00:28 6369kN 25.Kc2 Nc8 26.Kb1 b4 27.cxb4 axb4 28.a4 b3 29.Nc3 N8b6 = (-0.02) Depth: 9 00:00:44 9628kN 25.Ka1 b4 26.cxb4 axb4 27.Nxb4 Bxb4 28.Qxb4 Nxe5 29.dxe5 Na4 = (-0.01) Depth: 9 00:00:58 12580kN 25.Ka1 Nc8 26.Bxc4 bxc4 27.Qe2 Rb6 28.Rhg1 Rab8 29.Rge1 Qb7 = (-0.01) Depth: 9 00:01:06 13944kN 25.Ka1 Ke8 26.Bg2 Nd7 27.Bd2 Nxd2 28.Qxd2 b4 29.cxb4 axb4 30.a4 = (0.01) Depth: 10 00:01:29 17747kN 25.Ka1 Ke8 26.Nh2 Bc8 27.f4 b4 28.fxg5 bxa3 29.gxh6 axb2+ 30.Bxb2 Ba6 31.Nf3 = (0.07) Depth: 11 00:03:21 40524kN 25.Ka1 Bc8 26.Bd3 b4 27.Bc2 bxa3 28.b3 Nb2 29.Bxb2 axb2+ 30.Kxb2 a4 31.b4 = (0.02) Depth: 12 00:06:58 83248kN 25.Ka1 Bc8 26.Qe2 b4 27.Qc2 bxa3 28.b3 Nb2 29.Bxb2 axb2+ 30.Kxb2 a4 31.b4 a3+ = (-0.24) Depth: 13 00:12:36 160318kN 25.Ka1 b4 26.cxb4 axb4 27.Nxb4 Nxb2 28.Nxa6 N6c4 29.Bxc4 dxc4 30.Nxb8+ Qxb8 31.Bxb2 Bxa3 32.Qd2 Bxb2+ 33.Kb1 Bxd4+ 34.Qb4 Qxb4+ 35.Kc2 ³ (-0.64) Depth: 14 00:32:54 416611kN 25.Ka1 b4 26.Nd2 Nxd2 27.Bxd2 bxa3 28.b3 Bxf1 29.Rxf1 a4 30.b4 Nc4 31.f4 -+ (-1.42) Depth: 14 00:49:27 626942kN 25.Kc2 b4 26.cxb4 axb4 27.Nxb4 Bb5 28.Nd2 Bxb4 29.axb4 Nxd2 30.Bxb5 Nf3 31.Bxc6+ Kxc6 32.Qc3+ Nc4 33.Qxf3 Nxb2 -+ (-1.41) Depth: 14 00:52:51 676729kN 25.Kc2 b4 26.cxb4 axb4 27.Nxb4 Bb5 28.Rd3 Qa4+ 29.Kb1 Na5 30.Rd1 Bxf1 31.Rxf1 µ (-0.94) Depth: 14 01:08:55 902613kN 25.Bxc4 bxc4 26.Ka1 Na4 27.Rd2 Qb6 28.Qd1 Bxa3 29.Qxa4 Bxb2+ 30.Bxb2 Qxd4 µ (-0.93) Depth: 14 01:34:42 1255879kN 25.Bxc4 Nxc4 26.b4 axb4 27.cxb4 Bb7 28.Rd3 Rf8 29.Qe2 Qa4 30.Re1 Ke8 31.Nd2 f5 32.f3 f4 µ (-0.73) Depth: 14 01:43:17 1368155kN (Blass, Tel-aviv 01.12.2001) Analysis by Junior 7: 25.a4 Nxa4 ³ (-0.56) Depth: 3 00:00:01 25.Bd3 Qc7 26.Bc2 Na4 27.Bxa4 bxa4 = (0.07) Depth: 9 00:00:01 14kN 25.Bd3 Qc7 26.Bc2 Na4 27.Bxa4 bxa4 = (0.07) Depth: 9 00:00:01 14kN 25.Bd3 Qc7 26.Bc2 Na4 27.Bxa4 bxa4 = (0.07) Depth: 9 00:00:01 14kN 25.Bd3 Qc7 26.Bc2 Na4 27.Bxa4 bxa4 = (0.07) Depth: 9 00:00:01 14kN 25.Bd3 Qc7 26.Bc2 Na4 27.Bxa4 bxa4 = (0.07) Depth: 9 00:00:01 14kN 25.Bd3 a4 26.Nb4 Bb7 27.Nc2 Kc7 = (0.07) Depth: 12 00:00:01 171kN 25.Bd3 b4 26.cxb4 axb4 27.Bxc4 Nxc4 28.a4 Bc8 29.b3 Na3+ 30.Bxa3 bxa3 31.Qc3 µ (-0.98) Depth: 15 00:00:07 3607kN 25.Nd2 b4 26.Nxc4 Nxc4 27.cxb4 axb4 28.a4 Bc8 29.b3 Na3+ 30.Bxa3 bxa3 31.Qc3 µ (-0.96) Depth: 15 00:00:12 6418kN 25.Nxg5 hxg5 26.Rh3 Rh8 27.h6 Qb8 28.h7 Qf8 29.Qe2 µ (-0.82) Depth: 15 00:00:34 18570kN 25.Bd2 Nxd2+ 26.Qxd2 b4 27.cxb4 axb4 28.Nxb4 Bxf1 29.Rdxf1 Nc4 30.Qc3 Bxb4 31.axb4 Qa2+ 32.Kc1 µ (-0.79) Depth: 15 00:00:42 22973kN 25.Rd3 Nxa3+ ³ (-0.56) Depth: 15 00:00:52 28715kN 25.Kc2 b4 26.cxb4 axb4 27.Nxb4 Bb5 28.Nd3 Qa4+ 29.Kc3 Qa5+ 30.b4 Qa4 31.Nc5+ Bxc5 32.dxc5 = (-0.20) Depth: 15 00:00:58 31792kN 25.Ka1 b4 26.cxb4 Nxb2 27.b5 Nxd1 28.bxa6 Nc4 29.Qxd1 Nxa3 30.Nc3 Qb6 = (-0.10) Depth: 15 00:00:59 32776kN 25.Ka1 b4 26.cxb4 Nxb2 27.b5 Nxd1 28.bxa6 Nc4 29.Qxd1 Qb6 30.Nc3 Bxa3 31.Bxc4 Bb2+ ³ (-0.29) Depth: 18 00:01:36 51167kN 25.Ka1 b4 ³ (-0.59) Depth: 20 00:07:11 223711kN 25.Ka1 b4 26.cxb4 axb4 27.Rh3 b3 28.Bxc4 Nxc4 29.Nc3 Bxa3 30.bxa3 b2+ 31.Bxb2 Nxb2 32.Rd2 Nc4 33.Rd1 Nxa3 -+ (-1.44) Depth: 21 00:25:03 742310kN 25.b4 axb4 26.Bxc4 bxc4 27.Nxb4 Bxb4 28.cxb4 Na4 29.Qd2 c3 30.Qc2 Rf8 31.Rde1 Bc4 32.Qh7 Bb3 33.Qxh6 µ (-1.13) Depth: 21 00:45:20 1335702kN 25.Bxc4 Nxc4 26.b4 axb4 27.cxb4 Bc8 28.Rd3 Ke8 29.Qc3 Rb6 30.Qc2 Ra6 31.Nd2 c5 µ (-0.95) Depth: 21 01:38:35 3026137kN 25.Bxc4 Nxc4 26.b4 axb4 27.cxb4 Bc8 28.Rd3 Ke8 29.Qc3 Rb6 30.Qc2 Ra6 31.Nd2 c5 µ (-0.95) Depth: 21 01:45:03 3229243kN (Blass, Tel-aviv 30.11.2001)
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