Author: leonid
Date: 09:40:42 02/10/01
Go up one level in this thread
On February 10, 2001 at 12:28:49, Uri Blass wrote: >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. Better that my program. Mine found in 9 moves in 19 sec. AMD 400Mhz. >It suggested another move Qxd2+ > >Uri
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