Search found 2957 matches

by Eelco de Groot
Tue Nov 20, 2018 7:02 am
Forum: Computer Chess Club: General Topics
Topic: interesting position
Replies: 4
Views: 202

Re: interesting position

Hello Jon, Good testposition, it appears that you are correct that 17. Qg4 is also winning, Kaissa sees three winning moves now. 17. Na7 can transpose after 17... Ra8 18. Nb5 Rc8 but Kaissa sees a different PV after a while, so that move is not a complete transposition with 17. Nxc7+ 2rqkb1r/1pp1p1p...
by Eelco de Groot
Thu Nov 15, 2018 1:53 pm
Forum: Computer Chess Club: General Topics
Topic: The "Oh shit..." moment.
Replies: 10
Views: 915

Re: The "Oh shit..." moment.

Congratulation Eelco, you have correctly shown, that 11..d4!? might be a viable alternative. I enjoyed it very much, when suddenly 11...d4!? emerged, so i decided to pose this puzzle so everyone had a chance to experience that too. As promised, i post some preliminary lines: Thanks! I think it was ...
by Eelco de Groot
Tue Nov 13, 2018 10:00 am
Forum: Computer Chess Club: General Topics
Topic: The "Oh shit..." moment.
Replies: 10
Views: 915

Re: The "Oh shit..." moment.

I'm afraid I have forgotten to think like a chessplayer... But Kaissa luckily also can think of a more critical line for me, after 1.Nd2 It is not with dxc4, but she thinks the frightening 1..d4 would be at least as good as that, and now White will have to stay very cool and leave the Knight en pris...
by Eelco de Groot
Tue Nov 13, 2018 7:32 am
Forum: Computer Chess Club: General Topics
Topic: The "Oh shit..." moment.
Replies: 10
Views: 915

Re: The "Oh shit..." moment.

Current SF says: Searching: r1br2k1/pp3ppp/2n1pn2/q1bp4/2P2B2/P1N1PN2/1PQ2PPP/3RKB1R w K - 0 1 infinite: 0 time: 0 increment: 0 moves to go: 0 1 +1.54 00:00 5765 b4 2 -0.03 00:00 26972 b4 Nxb4 axb4 3 +0.26 00:00 42138 b4 Nxb4 axb4 4 +0.06 00:00 76505 b4 Nxb4 axb4 Bxb4 5 +0.00 00:00 139026 b4 Nxb4 a...
by Eelco de Groot
Mon Nov 05, 2018 7:15 am
Forum: Computer Chess Club: General Topics
Topic: may be a good test position ...
Replies: 20
Views: 1248

Re: may be a good test position ...

Hi Eelco I think there may be some luck involved if Stockfish switches 'early' to Rd3, because there are three moves that are evaluated at 0.0 As I wrote in my posting, CorChess took less then 90" at each of three trials, not only to switch to Rd3, but to start raising the eval too. And as for bxc3...
by Eelco de Groot
Sun Nov 04, 2018 10:37 pm
Forum: Computer Chess Club: General Topics
Topic: may be a good test position ...
Replies: 20
Views: 1248

Re: may be a good test position ...

I think there may be some luck involved if Stockfish switches 'early' to Rd3, because there are three moves that are evaluated at 0.0 r2q1rk1/p1pn1p2/1p2pPp1/3p2B1/2PP3Q/2b5/PP3P1P/2KR2Nb w - - Engine: Kaissa IV (512 MB) by T. Romstad, M. Costalba, J. Kiiski, G. 42 3:02 0.00 1.bxc3 Be4 2.cxd5 exd5 3...
by Eelco de Groot
Fri Nov 02, 2018 9:03 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo TCEC is doing really well so far against Stockfish
Replies: 15
Views: 1601

Re: Komodo TCEC is doing really well so far against Stockfish

It seems to me that Houdini in a direct confrontation will get beaten on speed. Even on TCEC where pure speed should not matter it will get beaten because of a poorer branching factor. Komodo is a much tougher opponent. It is a huge oversimplification, but it has better knowledge. The strength of e...
by Eelco de Groot
Fri Nov 02, 2018 8:47 pm
Forum: Computer Chess Club: General Topics
Topic: 9 new tactical positions
Replies: 13
Views: 761

Re: 9 new tactical positions

What on earth is an ExtendFish, Peter where do you find these things :)
by Eelco de Groot
Mon Oct 29, 2018 3:36 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo TCEC is doing really well so far against Stockfish
Replies: 15
Views: 1601

Re: Komodo TCEC is doing really well so far against Stockfish

It seems to me that Houdini in a direct confrontation will get beaten on speed. Even on TCEC where pure speed should not matter it will get beaten because of a poorer branching factor. Komodo is a much tougher opponent. It is a huge oversimplification, but it has better knowledge.
by Eelco de Groot
Sat Oct 27, 2018 3:14 am
Forum: Computer Chess Club: General Topics
Topic: Rb6 is devastating
Replies: 12
Views: 878

Re: Rb6 is devastating

I just discovered the Bxh3 can also be played immediately, and also wins. So there are two winning moves. So much for the fun problem. Rb6 not so devastating. But Bxh3 is also a nice sac motif! I like the problem. After tuning all night just for this problem, I get a 7.31 score :D This is the newes...