Author: Hermano Ecuadoriano
Date: 11:04:11 02/05/01
Go up one level in this thread
On February 05, 2001 at 13:45:13, Hermano Ecuadoriano wrote: >On February 05, 2001 at 08:07:35, Christophe Theron wrote: > >>On February 05, 2001 at 07:23:58, leonid wrote: >> >>>Hi! >>> >>>If you like to solve forced mate position full of "depleted uranium"... >>> >>>[D]NKBN4/QRQ3rR/2Qb2r1/N1b1nb2/B2nbbbB/1RNqqqq1/8/2N2k2 b - - >>> >>>Please, indicate your result. >>> >>>Thanks, >>>Leonid. >> >> >>Chess Tiger 14 (experimental version) finds: >>* a mate in 11 in 6.21s (Bxa7+...) >>* a mate in 9 in 15.27s (still Bxa7+...) >>on a K6-2 450 with 6Mb hash tables. > >It is hard to resist posting that Tiger 13 found mate in 8. > >Tiger 13 PII-300 48M hash >snipped from the Statistics window: > >00:00:00.3 37.60 6 42729 Bxa7+ Rxa7 Nexc6+ Ndxc6 Bxc7+ Nxc7 Nxc6+ Bxc6 Bxc7+ Ka8 >Bxc6+ Nxc6 Qxc6+ >00:00:01.7 35.98 6 105627 Bxa7+ Rxa7 Nexc6+ Ndxc6 Bxc7+ Nxc7 Nxc6+ Bxc6 Bxc7+ >Ka8 Bxc6+ Nxc6 Qxc6+ Rbb7 >00:00:02.5 35.98 7 211978 Bxa7+ Rxa7 Nexc6+ Ndxc6 Bxc7+ Nxc7 Nxc6+ Bxc6 Bxc7+ >Ka8 Bxc6+ >00:00:03.5 36.88 8 339300 Bxa7+ >00:00:09.8 Mate in 9 8 1020636 Bxa7+ Rxa7 Nexc6+ Ndxc6 Bxc7+ Nxc7 Nxc6+ Bxc6 >Bxc7+ Ka8 Bxc6+ Nb7 Bxb7+ Bxb7 >00:00:21.1 Mate in 8 9 2221209 Bxa7+ Rxa7 Nexc6+ Ndxc6 Bxc7+ Nxc7 Nxc6+ Bxc6 >Bxc7+ Ka8 Bxc6+ Nb7 Bxb7+ Bxb7 >00:00:47.9 Mate in 8 10 4865000 Bxa7+ Rxa7 Nexc6+ Ndxc6 Bxc7+ Nxc7 Nxc6+ Bxc6 >Bxc7+ Ka8 Bxc6+ Nb7 Bxb7+ Bxb7 I just learned that it is not counting the mating move: it is not mate in 8. It is mate in 9. Probably this is something already known. > > >> >> >> Christophe
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