Author: leonid
Date: 14:20:14 07/14/01
Go up one level in this thread
On July 14, 2001 at 13:52:43, Uri Blass wrote: >On July 14, 2001 at 10:37:22, Otello Gnaramori wrote: > >>On July 14, 2001 at 09:38:20, leonid wrote: >> >>>Hi! >>> >>>If you like to solve a mate then you have one position. >>> >>>[D]qr1b1rq1/P1P1P1P1/1q1k1q2/Q1RbR1Q1/1N1q1N2/1QnQnQ2/q1pKp1q1/3B4 w - - >>> >>>Please indicate your result. >>> >>>Thanks, >>>Leonid. >> >>Solved with Yace (mate in 12): >> >>1. cxb8=Q+ Qaxb8 2. axb8=Q+ Qxb8 3. Rexd5+ Nexd5 4. exf8=Q+ Kd7 5. Qgg4+ >>Qxg4 6. Rxd5+ Nxd5 7. Qxg4+ Qfe6 8. Qaxd5+ Qxd5 9. Qdxd5+ Qd6 10. Qfxd6+ >>Kc8 11. Qgxe6+ Qxe6 12. Qxd8# >> >>Regards. > >Junior7 at analysis mode > >New position >qr1b1rq1/P1P1P1P1/1q1k1q2/Q1RbR1Q1/1N1q1N2/1QnQnQ2/q1pKp1q1/3B4 w - - 0 1 > >Analysis by Junior 7: > >1.Bxc2 e1Q+ 2.Kxe1 Nxc2+ 3.Qbxc2 Qfxe5+ > -+ (-10.41) Depth: 3 00:00:00 10kN >1.Bxe2 Qxd3+ 2.Nbxd3 Qaxb3 3.exf8Q+ > -+ (-8.64) Depth: 3 00:00:00 881kN >1.cxd8Q+ Qxd8 2.exd8Q+ Qxd8 3.axb8Q+ Qaxb8 4.gxf8Q+ > µ (-0.75) Depth: 3 00:00:01 4682kN >1.cxb8Q+ Qbxb8 2.exf8Q+ Qfxf8 3.axb8Q+ Qxb8 4.gxf8Q+ > +- (3.58) Depth: 3 00:00:02 5037kN >1.cxb8Q+! > +- (3.88) Depth: 6 00:00:08 20426kN >1.exf8Q+! > +- (4.08) Depth: 6 00:00:43 110892kN >1.exf8Q+ Qfxf8 2.gxf8Q+ Qxf8 3.cxb8Q+ Qbxb8 4.axb8Q+ Qxb8 5.Rcxd5+ Nexd5 6.Rxd5+ >Qxd5 7.Qdxd5+ Nxd5 8.Qaxd5+ > +- (4.02) Depth: 7 00:01:44 256818kN >1.exf8Q+! > +- (4.32) Depth: 8 00:03:28 498543kN >1.exf8Q+! Qfxf8 2.cxb8Q+ Kd7 3.gxf8N+ Qxf8 4.Rcxd5+ > +- (5.17) Depth: 8 00:05:29 751226kN >1.cxb8Q+! > +- (5.18) Depth: 8 00:05:51 802279kN >1.cxb8Q+! Qaxb8 2.axb8Q+ Qxb8 3.Rexd5+ > +- (5.87) Depth: 8 00:07:14 977019kN >1.cxb8Q+ Qaxb8 2.axb8Q+ Qxb8 3.Rexd5+ Nexd5 4.exf8Q+ Kd7 5.Qgf5+ Qxf5 6.Qfxf5+ >Kd6 7.Rc6+ Ke7 8.Nbxd5+ Nxd5 9.Re6+ Qxe6 10.Qxe6# > +- (6.02) Depth: 9 00:12:14 1580565kN >1.exf8Q+! > +- (6.17) Depth: 9 00:13:46 1754225kN > >(Blass, Tel-aviv 14.07.2001) > >Note that Junior7 on p800 could see more than 2100 Knodes per second. This is much more that I ever have seen on mine Celeron 600. I do remember only some positions where selective search went as far as 1600k per second. Usually, it stay between 500K and 800k. Probably Junior7 can have more that 2100k, since I imagine that it use hash. Hash tend to deminish NPS. My program don't use hash. Cheers, Leonid. >Doctor3 has a bug so it can see mate in 4 > >Here is the analysis of doctor3 > >New position >qr1b1rq1/P1P1P1P1/1q1k1q2/Q1RbR1Q1/1N1q1N2/1QnQnQ2/q1pKp1q1/3B4 w - - 0 1 > >Analysis by Doctor? 3.0: > >1.Qaxa2 Qfxg5 2.Rxg5 Qbxc5 3.Rxc5 e1Q+ 4.Kxe1 Qg1+ 5.Kd2 > ² (0.58) Depth: 0/15 00:00:00 >1.c8N+ Kd7 2.Qxd4 Qaxd5 3.Qdxd5+ Qxd5+ 4.Rexd5+ Ke8 > +- (24.61) Depth: 0/16 00:00:00 >1.Qxd4 Qgxd5 2.Rexd5+ Qxd5 3.Qgxf6+ Kd7 4.c8Q+ > +- (#4) Depth: 0/16 00:00:00 >1.Qxd4 Qgxd5 2.Rexd5+ Qxd5 > +- (#4) Depth: 0/16 00:00:00 > >(Blass, Tel-aviv 14.07.2001) > >Uri
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