I hate this hobby...

Discussion of chess software programming and technical issues.

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Evert
Posts: 2929
Joined: Sat Jan 22, 2011 12:42 am
Location: NL

I hate this hobby...

Post by Evert »

So, I'm trying to improve SjaakII by improving its king safety evaluation in drop-games.

So, I have a specific idea I'd like to try for Shogi and mini-Shogi. Let's give it a go:

Shogi:

Code: Select all

Rank Name            Elo    +    - games score oppo. draws 
   1 Sjaak II 700M  2168   16   16  1890   65%  2032    0% 
   2 Sjaak II 700   2032   16   16  1890   35%  2168    0% 
               Sj Sj
Sjaak II 700M    100
Sjaak II 700    0   
Mini-shogi:

Code: Select all

Rank Name            Elo    +    - games score oppo. draws 
   1 Sjaak II 700   2112   13   13  2800   53%  2088    0% 
   2 Sjaak II 700M  2088   13   13  2800   47%  2112    0% 
               Sj Sj
Sjaak II 700      99
Sjaak II 700M   0   
Meh. Ok, there seems something to this idea. Let's try some tweaks to it.
Mini-shogi:

Code: Select all

Rank Name            Elo    +    - games score oppo. draws 
   1 Sjaak II 700M  2154   13   13  2800   62%  2046    0% 
   2 Sjaak II 700   2046   13   13  2800   38%  2154    0% 
               Sj Sj
Sjaak II 700M    100
Sjaak II 700    0   
Hey, not bad! Shogi:

Code: Select all

Rank Name            Elo    +    - games score oppo. draws 
   1 Sjaak II 700   2254   19   19  1806   82%  1946    0% 
   2 Sjaak II 700M  1946   19   19  1806   18%  2254    0% 
               Sj Sj
Sjaak II 700     100
Sjaak II 700M   0   
:shock: :(
Daniel Anulliero
Posts: 759
Joined: Fri Jan 04, 2013 4:55 pm
Location: Nice

Re: I hate this hobby...

Post by Daniel Anulliero »

Hello
Sometimes I hate the hobby too :)
So , If I look correctly you did two tests with the elo result total inversed?
Isa download :
Henk
Posts: 7216
Joined: Mon May 27, 2013 10:31 am

Re: I hate this hobby...

Post by Henk »

Are there any members who don't hate this hobby ?!
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Evert
Posts: 2929
Joined: Sat Jan 22, 2011 12:42 am
Location: NL

Re: I hate this hobby...

Post by Evert »

Daniel Anulliero wrote:Hello
Sometimes I hate the hobby too :)
So , If I look correctly you did two tests with the elo result total inversed?
Something like that. I can improve play in mini-Shogi, or in regular Shogi, but only at significant cost to the other.
Of course, what this means is that I need to find the correct way to tell these apart and scale the evaluation terms appropriately. Easier said than done, of course.
tuxedocat
Posts: 2
Joined: Wed Dec 28, 2016 4:29 pm
Location: Atlanta, GA

Re: I hate this hobby...

Post by tuxedocat »

Henk wrote:Are there any members who don't hate this hobby ?!
I'm still naive enough that I don't hate it. In fact, I'm here working on it at 22:30 Friday night. :lol:
Angrim
Posts: 97
Joined: Mon Jun 25, 2012 10:16 pm
Location: Forks, WA
Full name: Ben Nye

Re: I hate this hobby...

Post by Angrim »

I just hate that I don't have enough time currently to really take part in this hobby.
User avatar
Evert
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Joined: Sat Jan 22, 2011 12:42 am
Location: NL

Re: I hate this hobby...

Post by Evert »

Evert wrote: Something like that. I can improve play in mini-Shogi, or in regular Shogi, but only at significant cost to the other.
Of course, what this means is that I need to find the correct way to tell these apart and scale the evaluation terms appropriately. Easier said than done, of course.
Ok, I've found something that works: if I scale the king-safety term related to threatened squares around the enemy king by board size, this seems to improve play for both mini-Shogi and regular Shogi, while it's perfectly neutral for Crazyhouse. A test for Tori Shogi is still running.

What makes me uneasy is that I don't see why that type of scaling is reasonable: it gives more weight to having safe squares near the king on a smaller board, which seems more like a general mobility term (controlling squares on the enemy side of the board) than a king-safety term...