Search found 7196 matches

by Dann Corbit
Thu Aug 16, 2018 8:42 pm
Forum: Computer Chess Club: General Topics
Topic: New version of Tactical Insanity test
Replies: 20
Views: 535

Re: New version of Tactical Insanity test

About this one : 2q2rbk/4n1pp/1P1pp1P1/Rnp2P1K/4P1pR/2QP4/1pPB4/rB2NN2 w - - bm b7; id "TI-e.123"; 1.Rxb5 and 1.b7 are very close. Stockfish_180812_x64_modern: 36/78 04:51 2 631 159 397 9 028 103 +0,78 1.Rxb5 Qe8 2.Bh6 e5 3.Qd2 Rxb1 4.Bxg7+ Kxg7 5.Qh6+ Kf6 6.Kxg4 hxg6 7.Nf3 Nxf5 8.exf5 Rxf1 9.Rxb2 ...
by Dann Corbit
Thu Aug 16, 2018 8:39 pm
Forum: Computer Chess Club: General Topics
Topic: New version of Tactical Insanity test
Replies: 20
Views: 535

Re: New version of Tactical Insanity test

Vinvin wrote:
Thu Aug 16, 2018 7:59 pm
Here : 4b1B1/6p1/3k3p/p3p3/6PP/1P3K2/4P3/8 b - - bm Bc6+; id "TI-e.109";
g5 seems to be winning also (transposition).
You are correct, that move does form a transposition that leads to an identical position.
by Dann Corbit
Thu Aug 16, 2018 8:37 pm
Forum: Computer Chess Club: General Topics
Topic: New version of Tactical Insanity test
Replies: 20
Views: 535

Re: New version of Tactical Insanity test

Vinvin wrote:
Thu Aug 16, 2018 8:21 pm
For this one : 2r3NK/2p3PP/N5k1/8/5n2/2p5/R7/8 w - - bm Ra5; id "TI-e.122";
1.Nc5 seems even stronger than 1.Ra5.
You are correct.
I have ce=1232 in my database for Ra5 at depth 47 and 1170 for Nc5 at depth 40, but a deeper search would undoubtedly over-take.
by Dann Corbit
Thu Aug 16, 2018 8:33 pm
Forum: Computer Chess Club: General Topics
Topic: New version of Tactical Insanity test
Replies: 20
Views: 535

Re: New version of Tactical Insanity test

One more question, here : 8/8/1kn5/6Rp/1P5P/2K3P1/4b3/8 w - - bm b5; id "TI-e.056"; How does white win after 1.b5 Na7 ? 8/n7/1k6/1P4Rp/7P/2K3P1/4b3/8 w - - 1 2 Sting said this: 8/n7/1k6/1P4Rp/7P/2K3P1/4b3/8 w - - acd 44; acs 594 ; acn 7203383382; ce 359 ; bm Kb4; pv Kb4 Nxb5 g4 Bxg4 Rg6+ Kc7 Kxb5 B...
by Dann Corbit
Thu Aug 16, 2018 7:18 pm
Forum: Computer Chess Club: General Topics
Topic: New version of Tactical Insanity test
Replies: 20
Views: 535

Re: New version of Tactical Insanity test

One more question, here : 8/8/1kn5/6Rp/1P5P/2K3P1/4b3/8 w - - bm b5; id "TI-e.056"; How does white win after 1.b5 Na7 ? 8/n7/1k6/1P4Rp/7P/2K3P1/4b3/8 w - - 1 2 Sting said this: 8/n7/1k6/1P4Rp/7P/2K3P1/4b3/8 w - - acd 44; acs 594 ; acn 7203383382; ce 359 ; bm Kb4; pv Kb4 Nxb5 g4 Bxg4 Rg6+ Kc7 Kxb5 B...
by Dann Corbit
Thu Aug 16, 2018 6:25 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: 7-men Syzygy attempt
Replies: 470
Views: 55660

Re: 7-men Syzygy attempt

When the task is finished, we should get a photo of Bojun Guo so that we can make a marble or bronze bust of him to put in the chess hall of fame.
Right next to the bust of Ronald.
by Dann Corbit
Thu Aug 16, 2018 6:22 pm
Forum: Computer Chess Club: General Topics
Topic: AMD Threadripper 2990x seems out what is the gain vs 1950x ?
Replies: 9
Views: 695

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

The 32 core threadripper also has stunted memory access.
I was rather surprised that it did so well on chess.
It seems that benchmarks for performances are hit or miss, sometimes even falling below the 16 core chip, depending on the task.
by Dann Corbit
Thu Aug 16, 2018 6:16 pm
Forum: Computer Chess Club: General Topics
Topic: New version of Tactical Insanity test
Replies: 20
Views: 535

Re: New version of Tactical Insanity test

Version E. https://drive.google.com/open?id=1lwg83kdjYE810RxaMvjzE7ZRDQg3rrzd Two problems had wrong solutions. Some problems had multiple solutions. Hi Dann, thanks for the corrections. May be this one has several good moves : q1N2k2/b1pB4/1pP5/pP2KP2/P1P5/8/8/8 w - - bm f6; id "TI-e.029"; Stockfi...
by Dann Corbit
Wed Aug 15, 2018 6:28 pm
Forum: Computer Chess Club: General Topics
Topic: AMD Threadripper 2990x seems out what is the gain vs 1950x ?
Replies: 9
Views: 695

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Seems like a very good idea.
Compared to the server boxes I am running right now, it would be much less electricity and heat.
Not to mention a lot quieter.

I wonder how well it overclocks.
by Dann Corbit
Tue Aug 14, 2018 7:14 pm
Forum: Computer Chess Club: General Topics
Topic: Two test positions for <2400 engines
Replies: 2
Views: 176

Re: Two test positions for <2400 engines

Bleeding edge Stockfish said: Searching: 8/7k/pprNb1p1/2P3Pp/r3PK2/P1R5/8/1R6 b - - 0 1 infinite: 0 time: 0 increment: 0 moves to go: 0 1 +0.50 00:00 18978 Rxc5 Rxc5 bxc5 2 +0.20 00:00 85874 b5 Nb7 3 -0.16 00:00 145742 bxc5 Rb7+ Kg8 Ke5 Rd4 4 -0.29 00:00 223725 bxc5 Rb7+ Kg8 Ke5 Rd4 5 -0.10 00:00 29...