Author: Uri Blass
Date: 09:28:49 02/10/01
Go up one level in this thread
On February 10, 2001 at 12:20:23, Enrique Irazoqui wrote: >On February 10, 2001 at 11:53:07, leonid wrote: > >>On February 10, 2001 at 11:17:19, Heiner Marxen wrote: >> >>>On February 10, 2001 at 10:36:39, leonid wrote: >>> >>>>On February 10, 2001 at 08:23:58, Uri Blass wrote: >>>> >>>>>On February 10, 2001 at 07:42:35, leonid wrote: >>>>> >>>>>>Hi! >>>>>> >>>>>>If you like to solve a mate, try this one: >>>>>> >>>>>>[D]3R2K1/q3q1B1/2bQ3Q/QQ3NQ1/2NnQQB1/Qq1qq1nQ/2nqr3/2nkbRq1 w - - >>>>>> >>>>>>Please, indicate your result. >>>>>> >>>>>>Thanks, >>>>>>Leonid. >>>>> >>>>>easy? >>>> >>>>When I found this position, yesterday, it was solved by selective search 9 moves >>>>deep. I expect that shortest mate is even closer. Move that lead to mate is >>>>checking move. This is why I wrote "easy". >>>> >>>>Leonid. >>> >>>There is no mate in 8 according to Chest (55 mins K7/600, 350MB hash). >> >>Thanks! Now it is for sure 9 moves position. >> >>Leonid. > >On a mobile P750 with 128MB hash, Junior 7 beta finds a mate in 9 in 2 minutes. >Junior is good at solving this sort of freak mates, while Deep Fritz refuses to >compute them and crashes. > >Enrique > >New position >3R2K1/q3q1B1/2bQ3Q/QQ3NQ1/2NnQQB1/Qq1qq1nQ/2nqr3/2nkbRq1 w - - 0 1 > >Analysis by Junior 7 beta: > >1.Qfxg3 Qdxc4+ 2.Qxc4 Qxc4+ 3.Qad5 Q3xg5 4.Qexe7 > +- (9.87) Depth: 3 00:00:00 341kN >1.Qexc6 Qf7+ 2.Kh7 Qxf4 3.Nxd4 > +- (11.59) Depth: 3 00:00:00 469kN >1.Qxd3 Qf7+ 2.Kh7 Qexd3 3.Qaxd2+ > +- (16.58) Depth: 3 00:00:00 718kN >1.Qxd2+ Qdxd2 2.Nfxe3+ Qdxe3 3.Bxe2+ Kxe2 4.Qexe3+ > +- (22.12) Depth: 3 00:00:00 975kN >1.Nfxe3+ Q2xe3 2.Bxe2+ Kxe2 3.Qxe1+ Nxe1 4.Qfxe3+ > +- (22.50) Depth: 3 00:00:00 1235kN >1.Nfxe3+! > +- (22.80) Depth: 6 00:00:01 2392kN >1.Nfxe3+! Qgxe3 2.Qbxb3 Qxc4+ 3.Qxc4 Qxg5 4.Qxd2+ Qxd2 5.Qhxg3 Bxe4 > +- (27.04) Depth: 6 00:00:04 6839kN >1.Nfxe3+! > +- (27.34) Depth: 9 00:00:21 33305kN >1.Nfxe3+! Qgxe3 2.Rxe1+ Qxe1 3.Qxe1+ Nxe1 4.Qbxb3+ Ndxb3 5.Bxe2+ Ncxe2 6.Qxb3+ >Kc1 7.Qexe3+ Qexe3 8.Qxe3+ Qdxe3 9.Qbd1# > +- (#9) Depth: 9 00:02:00 108950kN > >(Irazoqui, Cadaqués 10.02.2001) Chessmaster6000 is even better and found the mate in 10 seconds on pIII450 if I remember correctly. It suggested another move Qxd2+ Uri
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