Author: Heiner Marxen
Date: 19:23:32 08/16/01
Go up one level in this thread
On August 16, 2001 at 21:21:22, leonid wrote: >On August 16, 2001 at 19:49:56, Heiner Marxen wrote: > >>On August 16, 2001 at 19:00:56, Uri Blass wrote: >> >>>On August 16, 2001 at 18:58:17, Uri Blass wrote: >>> >>>>On August 16, 2001 at 16:47:03, Heiner Marxen wrote: >>>> >>>>>On August 16, 2001 at 12:03:51, leonid wrote: >>>>> >>>>>>Hi! >>>>>> >>>>>>This position is intended to be solvable by every program, after only minor >>>>>>resistance. >>>>>> >>>>>>1rrbbq2/3k4/1qqpnq2/3B4/2NPR3/1QB1KQ2/QN3PQQ/Q5QR w - - >>>>>> >>>>>>Please indicate your result. >>>>>> >>>>>>Thanks, >>>>>>Leonid. >>>>> >>>>>Hello Leonid! >>>>> >>>>>You should try to find titles for your beautiful creations! >>>>>For this one I suggest "The King", for obvious reasons :-) >>>>> >>>>>I've not yet worked on this new creation of yours, since my K7/600 after >>>>>60 hours is still busy crunching on your corrected "US". >>>>>http://www.icdchess.com/forums/1/message.shtml?183489 >>[D]B2B1qr1/N2Qb2q/Q2Rq3/Q2Q1q2/Q2Q2q1/Q2Q3n/R2Qq2k/1KN2rq1 w - - >>>>>I know, you warned us :-) but I thought that would not apply to Chest. >>>>>That there is no mate in 8 needed only 40 minutes with an apparent EBF >>>>>below 10, so I expected less than 10 hours. But this one is a hard nut >>>>>for Chest. >>>> >>>>I understand that chest is working on finding if there is a mate in 9 >>>>Chessmaster6000(ss=10) can see mate in 12 in 7:20 at depth 1/6(PIII850) >>>> >>>>Uri >>> >>>It can see even mate in 11 in 16:58 at depth 1/7 >>>The move is d2-e2 >>> >>>Uri >> >>Hello Uri! >> >>Thanks for the info! >>I expect Chest to find a mate in 9, here, but I have to wait until it is >>completely done (64 hours and still busy...). >>Ah, yes, d2-e2 is one of those moves, where the tree explodes for Chest. >> >>We'll see... I will report, of course... until then... >> >>Cheers, >>Heiner > >Heiner, from what move exactly branching went up? On mine is started growing >just from 6. It could be that I just stopped where it must explode. > >If you want to glace brute force: > >Moves Time Branching factor NPS > >4 1.26sec 77k > 6.65 >5 8.4 sec 120k > 6.63 >6 55.77 124k > 8.78 >7 8min 3sec 116k > 8.17 >8 1 hour 5 min 48 sec > >Cheers, >Leonid. Here is my data: depth time EBF[T] EBF[N] # 1 0.00s 0kN 0.87 1- 0 # 2 0.00s 0kN 1.00 1- 0 # 3 0.03s 2kN [ 19.55] 0.96 94- 0 # 4 0.49s [ 16.33] 26kN [ 12.46] 1.02 1721- 0 # 5 5.79s [ 11.82] 272kN [ 10.44] 1.14 24491- 0 # 6 39.83s [ 6.88] 1741kN [ 6.40] 1.40 171448- 0 # 7 254.16s [ 6.38] 11262kN [ 6.47] 1.70 1091347- 1 # 8 2375.96s [ 9.35] 109788kN [ 9.75] 1.93 9380661- 1310495 First, it went down, nicely, but then it started climbing somewhat, and the next one is at least 88 ! Uuh. Its still running, over 66 hours already. Cheers, Heiner
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