Is this hard ?

Discussion of chess software programming and technical issues.

Moderators: hgm, Harvey Williamson, bob

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
User avatar
xr_a_y
Posts: 543
Joined: Sat Nov 25, 2017 1:28 pm
Location: France

Re: Is this hard ?

Post by xr_a_y » Sun Jun 09, 2019 5:14 pm

I really don't get what is wrong with Minic in this position ... Topple get the mate without syzygy ?

Something with pruning in endgame because mateFinder mode of Minic is way better in this position ...

konsolas
Posts: 168
Joined: Sun Jun 12, 2016 3:44 pm
Location: London
Full name: Vincent
Contact:

Re: Is this hard ?

Post by konsolas » Sun Jun 09, 2019 5:52 pm

Yes, Syzygy wasn't used there.

Perhaps it's to do with one of your interior node recognisers? Topple doesn't have any of those yet.

User avatar
xr_a_y
Posts: 543
Joined: Sat Nov 25, 2017 1:28 pm
Location: France

Re: Is this hard ?

Post by xr_a_y » Sun Jun 09, 2019 6:07 pm

yes maybe, so where buggy the last few days ...

voffka
Posts: 35
Joined: Sat Jun 30, 2018 8:58 pm
Location: Ukraine
Full name: Volodymyr Shcherbyna

Re: Is this hard ?

Post by voffka » Thu Jun 20, 2019 12:35 am

Dann Corbit wrote:
Fri Jun 07, 2019 8:15 pm
xr_a_y wrote:
Fri Jun 07, 2019 6:53 pm
Minic fails to find Kh5 and plays g6 instead, which leads to draw.
Also, h5 is a mate in 18, so there are two winning moves.
Igel 1.7.0 finds h5 in ~3 seconds with and without tablebases (1 thread, 256 mb tt):

info depth 17 seldepth 44 score cp 932 time 3844 nodes 9769223 tbhits 0 pv h4h5 e7f8 h5h6 f1h1 g4f5 h1h4 f5g6 h4h2 e8c6 h2c2 h6h7 c2c6 g6h5 f8f7 h7h8q f7e6 g5g6 c6c5 h5h6 c5c2 h8e8 e6f5 e8f7 f5e4 g6g7

Post Reply