No chance

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Spliffjiffer
Posts: 159
Joined: Thu Aug 02, 2012 5:48 pm
Location: Germany

Re: No chance

Post by Spliffjiffer » Tue Sep 18, 2018 9:41 am

hallo MikeB :-)
thats awesome, im very curious about this analysis !
yes, after ....Ng5,Nxa3 i also thought Bf2 would be the move but i couldnt find anything after ...Nb5 eg
in my completely patzers eyes it looks like a draw because i have the feeling that black lost one tempo (which was important in the original...h6,Txh6 line i already was able to refute) with ...h6 (now Nxa3 !?)...im curious if McCain can find sth else than 0.00
Wahrheiten sind Illusionen von denen wir aber vergessen haben dass sie welche sind.

MikeB
Posts: 2855
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: No chance

Post by MikeB » Tue Sep 18, 2018 10:22 am

Spliffjiffer wrote:
Tue Sep 18, 2018 9:41 am
hallo MikeB :-)
thats awesome, im very curious about this analysis !
yes, after ....Ng5,Nxa3 i also thought Bf2 would be the move but i couldnt find anything after ...Nb5 eg
in my completely patzers eyes it looks like a draw because i have the feeling that black lost one tempo (which was important in the original...h6,Txh6 line i already was able to refute) with ...h6 (now Nxa3 !?)...im curious if McCain can find sth else than 0.00
so far, it's still coming up draw with all 3 moves after ~500 billion nodes...

Code: Select all

info depth 51 seldepth 9 multipv 1 score cp 0 nodes 494154791512 nps 25280458 hashfull 999 tbhits 0 time 19546908 pv a3b5 h3h7 b5d6 e5d6 b6d8 h7g7 g8h8 g7h7
info depth 51 seldepth 9 multipv 2 score cp 0 nodes 494154791512 nps 25280458 hashfull 999 tbhits 0 time 19546908 pv a3b1 h3h7 b1c3 b2c3 b3b2 h7g7 g8h8 g7h7
info depth 51 seldepth 21 multipv 3 score cp 0 nodes 494154791512 nps 25280458 hashfull 999 tbhits 0 time 19546908 pv h7h5 d1g1 a3b5 e2h5 b6c7 h5d1 b5d6 e5d6 c7c8 h3h7 e6e5 h7g7 g8h8 d1g4 c6d7 g4d7 c8d7 g7h7 h8g8 h7g7
will let it run for another 14 hours

MikeB
Posts: 2855
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: No chance

Post by MikeB » Tue Sep 18, 2018 5:42 pm

Spliffjiffer wrote:
Tue Sep 18, 2018 9:41 am
hallo MikeB :-)
thats awesome, im very curious about this analysis !
yes, after ....Ng5,Nxa3 i also thought Bf2 would be the move but i couldnt find anything after ...Nb5 eg
in my completely patzers eyes it looks like a draw because i have the feeling that black lost one tempo (which was important in the original...h6,Txh6 line i already was able to refute) with ...h6 (now Nxa3 !?)...im curious if McCain can find sth else than 0.00
Up to 1.2 trillion nodes , all 3 moves show draw score - zero after 15 hours of think - will let it run until I get home ...

JManion
Posts: 185
Joined: Wed Dec 23, 2009 7:53 am

Re: No chance

Post by JManion » Tue Sep 18, 2018 6:09 pm

So what engine is doing the best at solving this position?

MikeB
Posts: 2855
Joined: Thu Mar 09, 2006 5:34 am
Location: Pen Argyl, Pennsylvania

Re: No chance

Post by MikeB » Wed Sep 19, 2018 12:19 am

MikeB wrote:
Tue Sep 18, 2018 5:42 pm
Spliffjiffer wrote:
Tue Sep 18, 2018 9:41 am
hallo MikeB :-)
thats awesome, im very curious about this analysis !
yes, after ....Ng5,Nxa3 i also thought Bf2 would be the move but i couldnt find anything after ...Nb5 eg
in my completely patzers eyes it looks like a draw because i have the feeling that black lost one tempo (which was important in the original...h6,Txh6 line i already was able to refute) with ...h6 (now Nxa3 !?)...im curious if McCain can find sth else than 0.00
Up to 1.2 trillion nodes , all 3 moves show draw score - zero after 15 hours of think - will let it run until I get home ...
after 1.8 trillion nodes searched - all draw scores for the best 3 moves, all over moves lose

Code: Select all

info depth 55 seldepth 9 multipv 1 score cp 0 nodes 1835577665421 nps 25344719 hashfull 999 tbhits 0 time 72424463 pv a3b5 h3h7 b5d6 e5d6 b6d8 h7g7 g8h8 g7h7
info depth 55 seldepth 9 multipv 2 score cp 0 nodes 1835577665421 nps 25344719 hashfull 999 tbhits 0 time 72424463 pv a3b1 h3h7 b1c3 b2c3 b3b2 h7g7 g8h8 g7h7
info depth 54 seldepth 21 multipv 3 score cp 0 nodes 1835577665421 nps 25344719 hashfull 999 tbhits 0 time 72424463 pv h7h5 d1g1 a3b5 e2h5 b6c7 h5d1 b5d6 e5d6 c7c8 h3h7 e6e5 h7g7 g8h8 d1g4 c6d7 g4d7 c8d7 g7h7 h8g8 h7g7
bestmove a3b5 ponder h3h7

Spliffjiffer
Posts: 159
Joined: Thu Aug 02, 2012 5:48 pm
Location: Germany

Re: No chance

Post by Spliffjiffer » Wed Sep 19, 2018 11:46 am

Thank you very much for this deep analysis MikeB !
its unbelievable that even ...h5 is evaluated as a draw now but after some try and error i couldnt refute ...h5 (looks like sucide but seems to hold)
so the latest news are: 8.Ng5?! is probably only a draw after 8...Nxa3 !?
im already curious about our superbrains here trying to show that 8.Ng5 is still a clear win...the position is amazing, yes, but so far it looks like we have to adjust the main-line after the queensac, isnt it ?
Thanks again MikeB for your very deep McCain-run :-)
Wahrheiten sind Illusionen von denen wir aber vergessen haben dass sie welche sind.

Paloma
Posts: 720
Joined: Thu Dec 25, 2008 8:07 pm

Re: No chance

Post by Paloma » Tue Feb 12, 2019 1:43 am

zullil wrote:
Wed Sep 05, 2018 10:28 pm
In case anyone cares, Cfish indeed finds mate-in-33:

info depth 106 seldepth 66 multipv 1 score mate 33 nodes 8196236881556 nps 53770709 hashfull 999 tbhits 0 time 152429399 pv f2g1 a5c3 b2c3 b3b2 e2d3 b2b1b d3b1 b8b1 d1d2 a3c2 d2c2 a4a3 c2f2 f8b8 h6h7 b8b7 f2a2 b1f1 a2a3 b7b1 h7g7 g8f8 g7f7 f8e8 f7e7 e8d8 g5h3 d8c8 f6f7 f1f5 e7e8 c8b7 f7f8q f5f8 e8f8 b1b3 a3a2 b3c3 h3g5 c6d7 g5f7 c3b3 f7d6 b7c6 a2a7 c6b6 f8a8 b6c6 a8d8 c4c3 d8d7 b3b8 d7e7 c6b6 a7a3 b6c6 a3c3 c6b6 c3b3 b6c6 b3b8 g6g5 e7b7 g5g4 b8c8

Hi zullil,

in your pv is (35...) b1f1 not correct. 36.Ra3 is now mate in 24

35...R1b3 is much better. 36.Rg7+ is now mate in 30! 36...Kf8 37.Nh7+ Ke8 38.Rg8+ Kd7 39.Rf8 mate in 27

cma6
Posts: 111
Joined: Thu May 29, 2014 3:58 pm

Updating asmFish

Post by cma6 » Tue Feb 12, 2019 2:08 am

Hi Lyudmil:
Are you the Lyudmil who updates asmFish?

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Eelco de Groot
Posts: 4029
Joined: Sun Mar 12, 2006 1:40 am
Location: Groningen

Re: No chance

Post by Eelco de Groot » Tue Feb 12, 2019 3:12 am

No he is not :wink: You'll want to get in touch with Lyudmil Antonov. https://github.com/lantonov/asmFish
I think there is a way to contact via asmFish's repository. Maybe he can be reached by just posting on Fishcooking but there is an awful lot of noise there. But maybe he'll read it. https://groups.google.com/forum/#!forum/fishcooking

lantonov is also a member on TalkChess (use searchfunction if you can't find him) so you can try PM
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan

cma6
Posts: 111
Joined: Thu May 29, 2014 3:58 pm

asmFish author

Post by cma6 » Tue Feb 12, 2019 3:41 am

Thanks, Eelco. I was able to use search to find the asmFish author.

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