Search found 3627 matches

by Vinvin
Thu Nov 14, 2019 12:31 am
Forum: Computer Chess Club: General Topics
Topic: Testposition
Replies: 12
Views: 1244

Re: Testposition

Very hard for Stockfish. After some learning, the 10 best moves after Nh4! : FEN: 1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP3N/2P1Q3/PP3P1P/R2BR1K1 b - - 1 21 Stockfish_19111311_x64_modern: 26/39 01:56 1 043 128 499 8 969 984 +4,51 21. ... a5 22.Qf3 Bxe5 23.Bxe5 Nxe5 24.Rxe5 g6 25.Qf6 Qd8 26.Re2 Qxf6 27.gxf...
by Vinvin
Tue Nov 12, 2019 9:25 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: 77th Amateur Series Division 2
Replies: 18
Views: 1339

Re: 77th Amateur Series Division 2

With short analyze and graph on Lichess : https://lichess.org/LS6o0WUj
by Vinvin
Tue Nov 05, 2019 12:33 pm
Forum: Computer Chess Club: General Topics
Topic: Hard pawn endgame
Replies: 11
Views: 978

Re: Hard pawn endgame

McCain-X2 starts to see something here : McCain-X2_x64_bmi2: ... 45/57 00:55 496.436k 8.999k +0,06 1.Ke3 Kc4 2.Kd2 a4 3.Kc1 g6 4.Kd2 f6 5.Kc1 Kb5 6.Kd1 Kc4 7.Kd2 f4 8.Kc1 Kb5 9.Kd1 f5 10.Kc1 g5 11.Kd1 Kc4 12.Kd2 g4 13.Kc1 Kb5 14.Kd1 Kc4 15.Kd2 g3 16.Kc1 Kb5 17.Kd1 Kc4 18.Kd2 h6 19.Kc1 Kb5 20.Kd1 Kc4...
by Vinvin
Tue Nov 05, 2019 12:10 pm
Forum: Computer Chess Club: General Topics
Topic: Hard pawn endgame
Replies: 11
Views: 978

Re: Hard pawn endgame

Nice long zugzwang. Current Stockfish has trouble with that. The big difference between white and black is that white has the treat to create a winning passed pawn and go to promotion. Surprisingly Sting-SF has a hard time here as well. No solution after 3 billions nodes. But if you teach SF how to ...
by Vinvin
Tue Oct 22, 2019 11:51 am
Forum: Computer Chess Club: General Topics
Topic: Winning after Qf6+!
Replies: 98
Views: 10153

Re: Winning after Qf6+!

Brainfish after 45 hours and depth 75 from the start position: 1r3r2/4bpkp/1qb1p1p1/3pP1P1/p1pP1Q2/PpP2N1R/1Pn1B2P/3RB2K w - - 0 1 Brainfish 191015 64 POPCNT: 67/170 8:10:57 427.471.609.979 14.511.274 +2,53 1.Qf6+ Bxf6 2.gxf6+ Kg8 3.Bd2 Qa5 4.Bh6 Qxc3 5.bxc3 b2 6.Bxf8 Rxf8 7.Rb1 Rb8 8.Ng5 Nxa3 9.Rx...
by Vinvin
Tue Oct 15, 2019 12:13 pm
Forum: Computer Chess Club: General Topics
Topic: 1.g4 opening is losing?
Replies: 31
Views: 4371

Re: 1.g4 opening is losing?

After 1.g4 d5 is around -1, i'd say it's losing.

The Alekhine's 1.e4 Nf6 2.e5 is around +0.7 and probably losing as well.
by Vinvin
Tue Oct 08, 2019 2:33 pm
Forum: Computer Chess Club: General Topics
Topic: Hard-Talkchess-2020 set
Replies: 22
Views: 4953

Re: Hard-Talkchess-2020 set

Jouni wrote:
Tue Oct 08, 2019 1:04 pm
I tested Houdini 6 tactical with 5 min limit and i5/4 cores. Result
...
Total solved: 146/211

My quess is, that score will be 160-170 with your hardware/conditions.
Thanks Jouni !
by Vinvin
Mon Oct 07, 2019 2:07 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: Swiss Tournament Ed.VIII. Group A.
Replies: 69
Views: 9918

Re: Swiss Tournament Ed.VIII. Group A.

Thank you very much Sergio for your excellent work organizing this great tournament. Thank you very much Juan Manuel, always is a pleasure count with a strong an interesting engine like Godel in my tournaments :) Hi Sergio ! When will be the Swiss Tournament Ed.IX ? Thanks for your tournaments !
by Vinvin
Mon Oct 07, 2019 10:13 am
Forum: Computer Chess Club: General Topics
Topic: CCRL, FIDE and Ratings
Replies: 12
Views: 2592

Re: CCRL, FIDE and Ratings

About SSDF and FIDE : SSDF lowered the rating values for its list several times : https://www.chessprogramming.org/SSDF#Rating_Calibration http://privat.bahnhof.se/wb432434/level.htm This was done because they saw that the ratings for strongest computers is too high compare to human FIDE ratings. Bu...