Author: Martin Giepmans
Date: 02:54:05 12/06/05
Go up one level in this thread
On December 05, 2005 at 21:44:19, Uri Blass wrote: >On December 05, 2005 at 19:14:46, Martin Giepmans wrote: > >>[D] 8/3N4/8/8/1pp5/brpp4/qpprp3/1nkbK3 w - - 3 13 >> >>I guess many other engines will also not find it. Mine only finds it when I >>enable verification search (which is default off). >>It's a null move problem. >> >>Martin > > >A bad guess because Rybka solve the following problem that is about the same >idea. Apparently not such a bad guess after all (see the post of Ed Murak). :) I don't know why Rybka is able to solve the second position (below) and not the first. It makes no difference in my engine. Martin > >New game, >[D]8/3N4/8/8/1pp5/brpp3p/qpprp2P/1nkbK3 w - - 0 1 > >Analysis by Rybka 1.0 Beta 32-bit: > >1.Ne5 > = (0.00) Depth: 3 00:00:00 >1.Ne5 > = (0.00) Depth: 4 00:00:00 >1.Ne5 Qa1 2.Nd7 > = (0.00) Depth: 5 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 6 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 7 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 8 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 9 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 10 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 11 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 12 00:00:00 >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 13 00:00:00 1kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 14 00:00:00 2kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 15 00:00:00 3kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 16 00:00:00 4kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 17 00:00:00 5kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 18 00:00:00 7kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 19 00:00:00 9kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 20 00:00:00 12kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 21 00:00:00 16kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 22 00:00:00 21kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 23 00:00:01 26kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 24 00:00:01 34kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 25 00:00:01 43kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 26 00:00:02 56kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 27 00:00:02 70kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 28 00:00:02 89kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 29 00:00:02 112kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 30 00:00:02 140kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 31 00:00:02 176kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 32 00:00:02 220kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 33 00:00:02 274kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 34 00:00:02 341kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 35 00:00:02 423kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 36 00:00:02 525kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 37 00:00:02 649kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 38 00:00:02 803kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 39 00:00:02 993kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 40 00:00:02 1229kN >1.Ne5 Qa1 2.Nd7 Qa2 > = (0.00) Depth: 41 00:00:02 1518kN >1.Ne5 Qa1 2.Nxc4 > +- (320.00) Depth: 42 00:00:02 1664kN > >(, 06.12.2005) > >Uri
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