Discussion of anything and everything relating to chess playing software and machines.
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acase
Posts: 981Joined: Wed Mar 15, 2006 1:14 amLocation: Columbus, Ohio USAFull name: Andrew R Case
Post by acase Sun Feb 28, 2016 5:05 am
I think there may be something wrong with this position (N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - bm f4+; c1 "diff=8") from Hard Talkchess 2016 Beta 1, unless of course I am missing something here, which is always a possibility
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It says the best move is f4+, however that move neither wins nor draws according to all of the engines I have tried (they all think white is lost), even after making the move.
here is the position before f4+:
[d]N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - -
GARGAMEL
Posts: 111Joined: Tue Dec 29, 2009 9:55 amLocation: AUSTRIA
Post by GARGAMEL Sun Feb 28, 2016 6:28 am
no Problem.......Krikheli,I - _, Studie, Bf4 1972Houdini 4 Pro x64 :f4+! Kh5 2.Se3 Txd6+ 3.Kxd6 dxe3 4.f5 c2 5.Sc7 c1D 6.Se6 Da1 7.Kd5 Dh8 8.Ke4 Da8+ 9.Ke5 Da5+ 10.Ke4 Da4+ 11.Kd5 Dd1+ Anton
peter
Posts: 3185Joined: Sat Feb 16, 2008 7:38 amFull name: Peter Martan
Post by peter Sun Feb 28, 2016 8:54 am
Hi Anton!
Nice to read from you once in a while again!
GARGAMEL wrote:
Analysis by Houdini 4 Pro x64 :
You lowered Houdini's 50-moves boundary, right?
Peter.
GARGAMEL
Posts: 111Joined: Tue Dec 29, 2009 9:55 amLocation: AUSTRIA
Post by GARGAMEL Sun Feb 28, 2016 11:04 am
acase
Posts: 981Joined: Wed Mar 15, 2006 1:14 amLocation: Columbus, Ohio USAFull name: Andrew R Case
Post by acase Sun Feb 28, 2016 12:17 pm
peter wrote: Hi Anton!
Nice to read from you once in a while again!
GARGAMEL wrote:
Analysis by Houdini 4 Pro x64 :
You lowered Houdini's 50-moves boundary, right?
Hello Peter!
Thanks for the explanation, and of course thanks to Anton.
kgburcham
Posts: 2016Joined: Sun Feb 17, 2008 4:19 pm
Post by kgburcham Sun Feb 28, 2016 3:11 pm
Just curious
no chess program was born totally from one mind. all chess programs have many ideas from many minds.
rabbits23
Posts: 144Joined: Fri Sep 12, 2014 4:57 amLocation: Randwick Australia
Post by rabbits23 Sun Feb 28, 2016 11:53 pm
Nope. Well not according to Komodo 9
rabbits23
Posts: 144Joined: Fri Sep 12, 2014 4:57 amLocation: Randwick Australia
Post by rabbits23 Mon Feb 29, 2016 12:24 am
Apologies; Komodo does eventually find the draw but not initially. It's
lech
Posts: 1136Joined: Sun Feb 14, 2010 10:02 pm
Post by lech Wed Mar 02, 2016 3:41 pm
Sting without any dirty tricks is able to solve this position.
[d]N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - bn f4+ (draw);
Sting sf 6.4 1024 M hash 2 threads (old dual core - 15 mintes)
Code: Select all
info depth 31 multipv 1 score cp -404 nodes 308508951 nps 1017237 time 303281 pv f1h2 g6d6 c6d6 c3c2 h2f3 g5f6 a8c7 c2c1q c7d5 f6g7 d6e5 c1f1 d5f4 f1f2 f3d4 f2e3 e5f5 g7f7 d4f3 f7e8 f3e5 e3c5 f5e4 e8e7 e5g6 e7d7 e2e3 c5c2 e4d4 c2d2 d4e4 d2b4 e4f5
info depth 32
info currmove f1h2 currmovenumber 1
info currmove a8c7 currmovenumber 2
info currmove c6b7 currmovenumber 3
info currmove c6c5 currmovenumber 4
info currmove c6d5 currmovenumber 5
info currmove f1e3 currmovenumber 6
info currmove f2f4 currmovenumber 7
info currmove f1d2 currmovenumber 8
info currmove e2e3 currmovenumber 9
info currmove c6b6 currmovenumber 10
info currmove c6d7 currmovenumber 11
info currmove f2f3 currmovenumber 12
info currmove a8b6 currmovenumber 13
info currmove c6c7 currmovenumber 14
info currmove c6b5 currmovenumber 15
info currmove e2e4 currmovenumber 16
info currmove f1g3 currmovenumber 17
info currmove d6e6 currmovenumber 18
info currmove d6f6 currmovenumber 19
info currmove d6g6 currmovenumber 20
info depth 32 multipv 1 score cp -412 upperbound nodes 742794257 nps 1025140 time 724578 pv f1h2
info currmove f1h2 currmovenumber 1
info currmove a8c7 currmovenumber 2
info currmove c6d5 currmovenumber 3
info currmove c6c5 currmovenumber 4
info currmove f1e3 currmovenumber 5
info currmove c6d7 currmovenumber 6
info currmove f2f3 currmovenumber 7
info currmove f1d2 currmovenumber 8
info currmove f2f4 currmovenumber 9
info currmove c6b5 currmovenumber 10
info currmove e2e3 currmovenumber 11
info currmove e2e4 currmovenumber 12
info currmove c6b6 currmovenumber 13
info currmove c6c7 currmovenumber 14
info currmove f1g3 currmovenumber 15
info currmove c6b7 currmovenumber 16
info currmove a8b6 currmovenumber 17
info currmove d6e6 currmovenumber 18
info currmove d6f6 currmovenumber 19
info currmove d6g6 currmovenumber 20
info depth 32 multipv 1 score cp -404 nodes 926243588 nps 1019461 time 908562 pv f2f4 g5h5 f1e3 g6d6 c6d6 d4e3 f4f5 c3c2 a8c7 c2c1q c7e6 c1b2 d6d5 b2f6 d5e4 f6c3 e4f4 c3h8 f4e4 h8b8 e4d4 b8h2 d4d5 h2g3 d5d4 g3d6 d4e4 d6b4 e4e5 b4a5 e5d4 a5e1 d4e4 e1d2 e4e5 d2a5Maybe, I can't be friendly, but let me be useful.
acase
Posts: 981Joined: Wed Mar 15, 2006 1:14 amLocation: Columbus, Ohio USAFull name: Andrew R Case
Post by acase Wed Mar 02, 2016 9:59 pm
lech wrote: Sting without any dirty tricks is able to solve this position.
[d]N7/8/2KQ2rp/6k1/3p3p/2p4P/4PP2/5N2 w - - bn f4+ (draw);
Sting sf 6.4 1024 M hash 2 threads (old dual core - 15 mintes)
Code: Select all
info depth 31 multipv 1 score cp -404 nodes 308508951 nps 1017237 time 303281 pv f1h2 g6d6 c6d6 c3c2 h2f3 g5f6 a8c7 c2c1q c7d5 f6g7 d6e5 c1f1 d5f4 f1f2 f3d4 f2e3 e5f5 g7f7 d4f3 f7e8 f3e5 e3c5 f5e4 e8e7 e5g6 e7d7 e2e3 c5c2 e4d4 c2d2 d4e4 d2b4 e4f5
info depth 32
info currmove f1h2 currmovenumber 1
info currmove a8c7 currmovenumber 2
info currmove c6b7 currmovenumber 3
info currmove c6c5 currmovenumber 4
info currmove c6d5 currmovenumber 5
info currmove f1e3 currmovenumber 6
info currmove f2f4 currmovenumber 7
info currmove f1d2 currmovenumber 8
info currmove e2e3 currmovenumber 9
info currmove c6b6 currmovenumber 10
info currmove c6d7 currmovenumber 11
info currmove f2f3 currmovenumber 12
info currmove a8b6 currmovenumber 13
info currmove c6c7 currmovenumber 14
info currmove c6b5 currmovenumber 15
info currmove e2e4 currmovenumber 16
info currmove f1g3 currmovenumber 17
info currmove d6e6 currmovenumber 18
info currmove d6f6 currmovenumber 19
info currmove d6g6 currmovenumber 20
info depth 32 multipv 1 score cp -412 upperbound nodes 742794257 nps 1025140 time 724578 pv f1h2
info currmove f1h2 currmovenumber 1
info currmove a8c7 currmovenumber 2
info currmove c6d5 currmovenumber 3
info currmove c6c5 currmovenumber 4
info currmove f1e3 currmovenumber 5
info currmove c6d7 currmovenumber 6
info currmove f2f3 currmovenumber 7
info currmove f1d2 currmovenumber 8
info currmove f2f4 currmovenumber 9
info currmove c6b5 currmovenumber 10
info currmove e2e3 currmovenumber 11
info currmove e2e4 currmovenumber 12
info currmove c6b6 currmovenumber 13
info currmove c6c7 currmovenumber 14
info currmove f1g3 currmovenumber 15
info currmove c6b7 currmovenumber 16
info currmove a8b6 currmovenumber 17
info currmove d6e6 currmovenumber 18
info currmove d6f6 currmovenumber 19
info currmove d6g6 currmovenumber 20
info depth 32 multipv 1 score cp -404 nodes 926243588 nps 1019461 time 908562 pv f2f4 g5h5 f1e3 g6d6 c6d6 d4e3 f4f5 c3c2 a8c7 c2c1q c7e6 c1b2 d6d5 b2f6 d5e4 f6c3 e4f4 c3h8 f4e4 h8b8 e4d4 b8h2 d4d5 h2g3 d5d4 g3d6 d4e4 d6b4 e4e5 b4a5 e5d4 a5e1 d4e4 e1d2 e4e5 d2a5
Excellent Marek, thanks for posting that, also thank you for your work on Sting-SF, it is quickly becoming one of my favorites.
I'll run Sting for a while on my machine and see if the eval comes up to 0.00.
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