Author: Will Singleton
Date: 05:31:29 06/09/02
Go up one level in this thread
On June 09, 2002 at 01:55:59, Gian-Carlo Pascutto wrote: >On June 09, 2002 at 01:00:30, Will Singleton wrote: > >>You win. I tested other engines on this, Yace, Pepeito, Leila, Beowulf, and >>Sjeng. Nothing close to your result. > >I don't get it. I thought the goal was to find Qc7. If Bc5 is >enough, Sjeng takes only 6 seconds. > I used Sjeng 12L, which took 290 secs to score the draw. You must have made a few improvements. The goal was to find Qc7 or something better, but it turns out that there are a couple moves that return a draw score. sjeng12L, amd1.6ghz: 22262 <first : 5 201 60 93857 Nxb2 Ra8 Qc7 Rc8 Bh2+ Kh1 Qd6 22312 <first : 6 171 64 108743 Nxb2 ?? 22812 <first : 6 152 114 293080 Nxb2 Ra8 Kh6 Ra7 Qb6 Qh8+ Kg6 Ne7+ Bxe7 Rxe7 24345 <first : 7 134 268 836303 Nxb2 Ra8 g4 hxg4 Bxg4 Ra7 Qb6 Qxf7 Qxc6 Qxg7# 24865 <first : 8 104 318 1001431 Nxb2 ?? 30834 <first : 8 94 916 2997945 Nxb2 Ra8 g4 Rd8 Qc7 Rc8 Qb6 Qe4+ Bg6 Qxg4 30834 <first : 8 94 916 2997945 Nxb2 Ra8 g4 Rd8 Qc7 Rc8 Qb6 Qe4+ Bg6 Qxg4 39266 <first : 9 85 1760 6018571 Nxb2 Ra8 g4 hxg4 Bxg4 Ra7 Qc8 Qxf7 Qg8 Rb7 Qxf7 Rxf7 52145 <first : 9 85 3047 10300807 Nxb2 Ra8 g4 hxg4 Bxg4 Ra7 Qc8 Qxf7 Qg8 Rb7 Qxf7 Rxf7 58784 <first : 10 55 3711 12542569 Nxb2 ?? 126451 <first : 10 -141 10478 35334993 Nxb2 g4 Na4 gxh5 Bc5 c4 Nc3 cxb5 Qxb5 Re1 Qc4 Qe5 155403 <first : 10 -140 13374 45136232 Qc7 ! 187289 <first : 10 11 16562 56020094 Qc7 Ra8 Nb6 Ra7 Qc8 Qxc8 Nxc8 Rb7 f6 Nd4 b4 cxb4 219335 <first : 10 11 19767 66500757 Qc7 Ra8 Nb6 Ra7 Qc8 Qxc8 Nxc8 Rb7 f6 Nd4 b4 cxb4 <Kg8> 312048 <first : 11 0 29036 97167005 Qc7 Ra8 Bc5 b4 Qf4 bxc5 Qc1+ Kh2 Qf4+ Kg1 <Qc1+> <Kh2> <Qf4+> <Kg1> <Qc1+> <Kh2> <Qf4+> In your latest version, you latch on to Bc5 prior to going low on Nxb2. >4Q3/1q3ppk/2Nb4/1p4pb/2n5/2P4P/1P3PP1/R5K1 b - - 0 1 > >Analysis by Sjeng 12.14 c: > >1...Nxb2 2.Ra8 > µ (-0.80) Depth: 2 00:00:00 >1...Nxb2 2.Ra7 Qb6 > µ (-0.82) Depth: 3 00:00:00 >1...Nxb2 2.Ra7 Qb6 > µ (-0.82) Depth: 3 00:00:00 >1...Nxb2 2.Ra7 Qb6 3.Qd7 > ³ (-0.60) Depth: 4 00:00:00 >1...Nxb2 2.Ra7 Qb6 3.Qd7 > ³ (-0.60) Depth: 4 00:00:00 >1...Nxb2 2.Ra8 Nd3 3.Qg8+ Kg6 4.Nd4 > µ (-0.79) Depth: 5/14 00:00:00 >1...Nxb2 2.Ra8 Nd3 3.Qg8+ Kg6 4.Nd4 > µ (-0.79) Depth: 5/18 00:00:00 >1...Nxb2 > ³ (-0.29) Depth: 6/18 00:00:00 125kN >1...Nxb2 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rc8 Qd7 5.f3 > = (-0.24) Depth: 6/21 00:00:01 437kN >1...Nxb2 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rc8 Qd7 5.f3 > = (-0.24) Depth: 6/21 00:00:01 500kN >1...Nxb2 2.Ra8 g4 3.hxg4 Bxg4 4.Ra7 Qc8 5.Qxc8 Bxc8 6.Rxf7 > = (-0.04) Depth: 7/21 00:00:01 786kN >1...Nxb2 2.Ra8 g4 3.hxg4 Bxg4 4.Ra7 Qc8 5.Qxc8 Bxc8 6.Rxf7 > = (-0.04) Depth: 7/23 00:00:03 1487kN >1...Nxb2 2.Ra8 g4 3.Ra7 Qb6 4.hxg4 Bxg4 5.Rxf7 Nd3 > = (0.06) Depth: 8/23 00:00:03 2166kN >1...Bc5 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rg8 Bxf2+ 5.Kxf2 Qf4+ 6.Kg1 Qc1+ 7.Kh2 Qf4+ 8.Kg1 >Qc1+ 9.Kh2 Qf4+ 10.Kg1 > = (0.00) Depth: 8/24 00:00:06 3786kN >1...Bc5 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rg8 Bxf2+ 5.Kxf2 Qf4+ 6.Kg1 Qc1+ 7.Kh2 Qf4+ 8.Kg1 >Qc1+ 9.Kh2 Qf4+ 10.Kg1 > = (0.00) Depth: 8/26 00:00:08 5666kN >1...Bc5 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rg8 Bxf2+ 5.Kxf2 Qf4+ 6.Kg1 Qc1+ 7.Kh2 Qf4+ 8.Kg1 >Qc1+ 9.Kh2 Qf4+ 10.Kg1 > = (0.00) Depth: 9/26 00:00:12 8083kN >1...Bc5 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rg8 Bxf2+ 5.Kxf2 Qf4+ 6.Kg1 Qc1+ 7.Kh2 Qf4+ 8.Kg1 >Qc1+ 9.Kh2 Qf4+ 10.Kg1 > = (0.00) Depth: 9/32 00:00:16 11216kN >1...Bc5 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rg8 f6 5.Rc8 Qf4 6.Qe8+ Kh6 7.Qh8+ Kg6 8.Qe8+ Kh6 >9.Qh8+ Kg6 > = (0.00) Depth: 10/32 00:00:30 20776kN >1...Bc5 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rg8 f6 5.Rc8 Qf4 6.Qe8+ Kh6 7.Qh8+ Kg6 8.Qe8+ Kh6 >9.Qh8+ Kg6 > = (0.00) Depth: 10/36 00:00:44 29982kN >1...Bc5 2.Ra8 Qc7 3.Qh8+ Kg6 4.Rg8 f6 5.Rc8 Qf4 6.Qe8+ Kh6 7.Qh8+ Kg6 8.Qe8+ Kh6 >9.Qh8+ Kg6 > = (0.00) Depth: 11/36 00:01:19 53367kN > >-- >GCP
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