Search found 133 matches

by Dan Astrachan
Sun Aug 12, 2012 7:16 pm
Forum: Computer Chess Club: General Topics
Topic: Testposition
Replies: 8
Views: 2446

Re: Testposition

IvanHoe999946h, 4-Gb hash: 31 5:32:59 181 961 875 571 9 107 000 +1,30 Bc8-e6 f5xe6 f6-f5 g5-g6 Ne7xg6 Qh4xd8 Rb8xd8 Be4xf5 Na1-b3 Bc1-g5 Rd8-e8 Nc3-b5 Rf8xf5 Rf1xf5 h7-h6 Nb5-c7 Re8-c8 Rf5-f7 e5-e4 d3xe4 h6xg5 Nh3xg5 Bg7-d4+ Kg1-g2 Bd4-e3 e6-e7 Ng6xe7 Ng5-e6 Ne7-g6 Nc7-d5 Be3-d4 Rf7xb7 c5-c4 Ne6xd4 ...
by Dan Astrachan
Sat Aug 11, 2012 6:51 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position
Replies: 11
Views: 2771

Re: Test Position

Ivanhoe 9.46h, 4-Gb hash, Multi-PV 2 33 2:12:40 89 287 473 538 11 217 000 -0,98 Kg8-f8 Bg2-h3 b7-b5 Kg1-f2 Rd8-d6 Rf1-g1 Re8-e7 g3-g4 h5xg4 Bh3xg4 Bf3xg4 Ne3xg4 Ne5xg6 f5xg6 Rd6xg6 Kf2-e3 Re7-e8 Rg1-g3 Rg6-g8 Bc3-d4 Kf8-e7 Ke3xe4 Ke7-d6+ Ke4-f5 Re8-e1 Rg3-f3 Kd6-c7 c2-c3 Rg8-e8 Kf5-f4 Re1-a1 c3-c4 R...
by Dan Astrachan
Fri Aug 10, 2012 8:16 pm
Forum: Computer Chess Club: General Topics
Topic: test position: Bubir-Hefka, Richard Brix Memorial ICCF 2010
Replies: 24
Views: 3766

Re: test position: Bubir-Hefka, Richard Brix Memorial ICCF 2

[D] r5k1/2Rb2r1/p2p2n1/3Pp1q1/p3P2p/3N1Pn1/1PQ2BP1/4RBK1 b - - Ivanhoe 9.46h, 4-Gb hash 72 minutes to find Rf8. Ivanhoe 9.46h - Gameplay: 27 19:56 12 033 536 753 10 063 000 +1,59 Ng3xf1 Kg1xf1 Ng6-f4 Nd3xf4 Qg5xf4 Qc2-c1 h4-h3 Qc1xf4 e5xf4 Kf1-g1 Rg7xg2+ Kg1-h1 Bd7-g4 f3xg4 Rg2xf2 e4-e5 Ra8-e8 e5-e6...
by Dan Astrachan
Thu Jul 12, 2012 8:59 am
Forum: Computer Chess Club: General Topics
Topic: Where to get Million Base or another comprehensive PGN?
Replies: 4
Views: 1058

Re: Where to get Million Base or another comprehensive PGN?

Jeff, Million Base 1.74 is available, see the news section: http://www.top-5000.nl/ It's done this way because there is some sick person somewhere in China that is trying to get the web site down by downloading the 200Mb file 10,000 (or so) times a day. So I put it on another place. Why not host it...
by Dan Astrachan
Wed Jul 11, 2012 9:09 pm
Forum: Computer Chess Club: General Topics
Topic: how an engine survives?
Replies: 24
Views: 2979

Re: how an engine survives?

zappa, naum, chiron, onno, shredder....finished ....''ideas''? Best Regards All the engines you mentioned are commercial programs. Many of the strongest chess engines these days are free: Critter, Stockfish, Ivanhoe and Ippolit derivates. Since all of them could beat any human being, why would you ...
by Dan Astrachan
Wed Jul 11, 2012 7:48 pm
Forum: Computer Chess Club: General Topics
Topic: David Bronstein-Raymond Keene - Rxd5!!
Replies: 10
Views: 1194

Re: David Bronstein-Raymond Keene - Rxd5!!

After 4 hours of analysis, Ivanhoe still thinks Qh4 is the best move here: 30 3:43:18 164 847 290 097 12 304 000 +7,89 Qf4-h4 f6xg5 Qh4-d4 c4-c3 Bb2xc3 Kg8-f7 Qd4-h8 Rc5xc3 Bg2xd5+ Qa8xd5 Qh8xh7+ Bf8-g7 Rd1xd5 Nd7-f6 Re1-e7+ Kf7xe7 Qh7xg7+ Ke7-e6 Rd5xg5 Rc8-g8 Qg7xa7 Rc3-c1+ Kg1-g2 Rc1-c6 Qa7-b7 Rg8...
by Dan Astrachan
Tue Jul 10, 2012 9:14 pm
Forum: Computer Chess Club: General Topics
Topic: David Bronstein-Raymond Keene - Rxd5!!
Replies: 10
Views: 1194

Re: David Bronstein-Raymond Keene - Rxd5!!

Ivanhoe prefers Qh4 here. IvanHoe999946h (4-Gb hash) : --------------------------------------------------------------------------- 22 03:22 722 431 725 3 598 000 +4,73 Rd1xd5 Rc5xd5 Bb2xf6 Rd5-f5 Bg2xa8 Nd7xf6 Qf4-h4 c4xb3 Ba8-e4 Rc8-e8 a2xb3 h7-h6 Ng5-e6 Re8xe6 Be4-d5 Nf6xd5 Re1xe6 Kg8-f7 Re6-c6 Bf...
by Dan Astrachan
Tue Jul 10, 2012 2:40 pm
Forum: Computer Chess Club: General Topics
Topic: Deep Shredder 12 didn't see this coming
Replies: 23
Views: 3649

Re: Deep Shredder 12 didn't see this coming

[D]r1b2rk1/pp3ppp/1bn1p3/8/3P4/3BBN1P/qP3PP1/2RQ1RK1 w Chiron 1.1a 64-bit (8 cores) v Deep Shredder 12 (8 cores) from the "Revving Up The V8s" tournament. Chiron plays Bxh7+ and goes on to win in impressive fashion. Ivanhoe 9.46h, 4-Gb hash 23 00:52 535 449 184 10 329 000 0,00 Nf3-g5 h7-h6 Qd1-h5 Q...
by Dan Astrachan
Mon Jul 09, 2012 3:00 pm
Forum: Computer Chess Club: General Topics
Topic: Testposition!!
Replies: 3
Views: 859

Re: Testposition!!

hallo [Event " chinesische LM, Xinghua, f4 "] [Site "?"] [Date " 2012 .??.??"] [Round "?"] [White " Ding , Liren"] [Black " Lu Shanglei "] [Result " 1-0 "] [D]rnbqr1k1/pp3ppp/4pb1B/2p1N3/3P2Q1/2PB4/P4PPP/R4RK1 w - - 0 0[D] 1. f4!! 1-0 Which Engine can solve it? regards Anton Intel Core i7 875K,4 co...
by Dan Astrachan
Thu Jul 05, 2012 9:09 am
Forum: Computer Chess Club: General Topics
Topic: Simple fortress detection, engines fail
Replies: 40
Views: 6755

Re: Simple fortress detection, engines fail

[D] 8/8/8/5Bp1/7k/7P/4pPK1/8 b - - 0 1 No top 3 free engine finds the winning 1...g4! ; 1...e1? is draw after 2. Bg4!. (Intel 3.1 Ghz, 32 bits 2 cores.) Long time taking by Houdini and Critter to reach next depth is a sign they become to "smell" something. But how much time to find g4! with multiva...