Author: Uri Blass
Date: 11:53:05 03/17/01
Go up one level in this thread
On March 17, 2001 at 14:38:32, Michael P. Nance Sr. wrote: >On March 17, 2001 at 13:49:47, Uri Blass wrote: > >>On March 17, 2001 at 13:43:30, jonas cohonas wrote: >> >>>On March 17, 2001 at 13:04:29, Antonio Senatore wrote: >>> >>>>It seems incredible that a top chess program like Junior 6 (without the KPPKB >>>>tablebase but with the KBK and the KBKP tables) CAN'T SEE MATE IN ONE in the >>>>next position: >>>> >>>>7k/4pK1p/7B/8/8/8/8/8 w - - >>>> >>>>Junior neither can see mate in one in the following positions (without KNNKP >>>>tablebase): >>>> >>>>8/8/8/8/6N1/5NK1/7p/7k w - - >>>> >>>>8/8/8/8/8/6NK/3N1p2/6k1 w - - >>>> >>>> >>>>In the next position, he can't see mate in two: >>>> >>>>7k/3N4/6KN/8/8/8/7p/8 w - - >>>> >>>>Let's hope in the next update this problem is resolved. >>>> >>>>Regards. >>>> >>>>Antonio >>> >>>New position >>>7k/4pK1p/7B/8/8/8/8/8 w - - 0 1 >>> >>>Analysis by Junior 6.0: >>> >>>1.Bf8 e5 >>> = (-0.07) Depth: 3 00:00:00 >>>1.Bg7# >>> +- (#1) Depth: 3 00:00:00 >>>1.Bg7# >>> +- (#1) Depth: 3 00:00:00 >>> >>>(, MyTown 18.03.2001) >>> >>>New position >>>8/8/8/8/6N1/5NK1/7p/7k w - - 0 1 >>> >>>Analysis by Junior 6.0: >>> >>>1.Ngxh2 >>> = (0.00) Depth: 3 00:00:00 >>>1.Ngxh2 >>> = (0.00) Depth: 6 00:00:00, tb=1 >>>1.Ngxh2 >>> = (0.00) Depth: 9 00:00:00, tb=3 >>>1.Ngxh2 >>> = (0.00) Depth: 12 00:00:00, tb=5 >>>1.Ngxh2 >>> = (0.00) Depth: 15 00:00:00, tb=7 >>>1.Ngxh2 >>> = (0.00) Depth: 18 00:00:00, tb=9 >>>1.Ngxh2 >>> = (0.00) Depth: 21 00:00:00, tb=11 >>>1.Ngxh2 >>> = (0.00) Depth: 24 00:00:00 1kN, tb=13 >>>1.Ngxh2 >>> = (0.00) Depth: 27 00:00:00 1kN, tb=15 >>>1.Ngxh2 >>> = (0.00) Depth: 30 00:00:00 1kN, tb=17 >>>1.Ngxh2 >>> = (0.00) Depth: 33 00:00:00 1kN, tb=19 >>>1.Ngxh2 >>> = (0.00) Depth: 36 00:00:00 2kN, tb=21 >>>1.Ngxh2 >>> = (0.00) Depth: 39 00:00:00 2kN, tb=23 >>>1.Ngxh2 >>> = (0.00) Depth: 42 00:00:00 2kN, tb=25 >>>1.Ngxh2 >>> = (0.00) Depth: 45 00:00:00 3kN, tb=27 >>>1.Ngxh2 >>> = (0.00) Depth: 48 00:00:00 3kN, tb=29 >>>1.Ngxh2 >>> = (0.00) Depth: 51 00:00:00 3kN, tb=31 >>>1.Ngxh2 >>> = (0.00) Depth: 54 00:00:00 4kN, tb=33 >>>1.Ngxh2 >>> = (0.00) Depth: 57 00:00:00 4kN, tb=35 >>>1.Ngxh2 >>> = (0.00) Depth: 60 00:00:00 5kN, tb=37 >>>1.Ngxh2 >>> = (0.00) Depth: 63 00:00:00 5kN, tb=39 >>>1.Ngxh2 >>> = (0.00) Depth: 63 00:00:00 5kN, tb=40 >>> >>>(, MyTown 18.03.2001) >>> >>>New position >>>8/8/8/8/8/6NK/3N1p2/6k1 w - - 0 1 >>> >>>Analysis by Junior 6.0: >>> >>>1.Nh1 >>> = (0.00) Depth: 3 00:00:00 >>>1.Nh1 >>> = (0.00) Depth: 6 00:00:00 >>>1.Nh1 >>> = (0.00) Depth: 9 00:00:00, tb=5 >>>1.Nh1 >>> = (0.00) Depth: 12 00:00:00, tb=18 >>>1.Nh1 >>> = (0.00) Depth: 15 00:00:00 1kN, tb=32 >>>1.Nh1 >>> = (0.00) Depth: 18 00:00:00 1kN, tb=46 >>>1.Nh1 >>> = (0.00) Depth: 21 00:00:00 2kN, tb=60 >>>1.Nh1 >>> = (0.00) Depth: 24 00:00:00 2kN, tb=74 >>>1.Nh1 >>> = (0.00) Depth: 27 00:00:00 3kN, tb=88 >>>1.Nh1 >>> = (0.00) Depth: 30 00:00:00 3kN, tb=102 >>>1.Nh1 >>> = (0.00) Depth: 33 00:00:00 4kN, tb=116 >>>1.Nh1 >>> = (0.00) Depth: 36 00:00:00 4kN, tb=130 >>>1.Nh1 >>> = (0.00) Depth: 39 00:00:00 5kN, tb=144 >>>1.Nh1 >>> = (0.00) Depth: 42 00:00:00 5kN, tb=158 >>>1.Nh1 >>> = (0.00) Depth: 45 00:00:00 6kN, tb=172 >>>1.Nh1 >>> = (0.00) Depth: 48 00:00:00 7kN, tb=186 >>>1.Nh1 >>> = (0.00) Depth: 51 00:00:00 7kN, tb=200 >>>1.Nh1 >>> = (0.00) Depth: 54 00:00:00 8kN, tb=214 >>>1.Nh1 >>> = (0.00) Depth: 57 00:00:00 9kN, tb=228 >>>1.Nh1 >>> = (0.00) Depth: 60 00:00:00 9kN, tb=242 >>>1.Nh1 >>> = (0.00) Depth: 63 00:00:00 10kN, tb=256 >>>1.Nh1 >>> = (0.00) Depth: 63 00:00:00 10kN, tb=256 >>> >>>(, MyTown 18.03.2001) >>> >>>New position >>>7k/3N4/6KN/8/8/8/7p/8 w - - 0 1 >>> >>>Analysis by Junior 6.0: >>> >>>1.Ne5 h1Q >>> ³ (-0.70) Depth: 3 00:00:00 >>>1.Nf7+ >>> = (0.00) Depth: 3 00:00:00 >>>1.Nf7+ >>> = (0.00) Depth: 6 00:00:00 >>>1.Nf7+ >>> = (0.00) Depth: 9 00:00:00 >>>1.Nf7+ >>> = (0.00) Depth: 12 00:00:00 >>>1.Nf7+ >>> = (0.00) Depth: 15 00:00:00 >>>1.Nf7+ >>> = (0.00) Depth: 18 00:00:00 1kN >>>1.Nf7+ >>> = (0.00) Depth: 21 00:00:00 1kN >>>1.Nf7+ >>> = (0.00) Depth: 24 00:00:00 2kN >>>1.Nf7+ >>> = (0.00) Depth: 27 00:00:00 3kN >>>1.Nf7+ >>> = (0.00) Depth: 30 00:00:00 3kN >>>1.Nf7+ >>> = (0.00) Depth: 33 00:00:03 5221kN, tb=8986 >>> >>>(, MyTown 18.03.2001) >>> >>>You are right that is unacceptable from a top program, it seems in general that >>>the chessbase products have a problem reading tb's or maby the tb's are not as >>>perfect as one would think. >> >>The tablebases are perfect. >>Junior simply have some knoweldge that is wrong in this case. >> >>I suggest that you click on engine parameters and tell Junior to forget it's >>knowledge about insufficient material(I know that this is a parameter for >>Junior5 and I guess that it is also a parameter for Junior6). >> >>Uri >On the clearing the Engine parameters,this does what?Please explain what this >does. I do not know exactly about Junior6 but I know that Junior5 has insufficient material parameter and you have v near it if you use the default parameters. If you use the default parameters then Junior simply know that KB vs something is at most a draw for the KB and if it has a draw evaluation for one move it simply does not search other moves because it knows that the evaluation cannot be better. If you have not v near this parameter Junior does not know that KB cannot win and it will search other move even if the evaluation is a draw for the first move. While on the same point,what would clearing the Hashtables do?Would it make >the Program stronger in its next search ?Or would it slow it down?Please clear >this up. Regards,Mike I guess that clearing the hash tables will tell the program to forget results of previous searches. It means that the program may need time again to see things that it already saw in the previous search. Uri
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