Search found 133 matches

by Dan Astrachan
Mon Sep 10, 2012 8:49 am
Forum: Computer Chess Club: General Topics
Topic: Colossus of a mate in 7
Replies: 12
Views: 3096

Re: Colossus of a mate in 7

On my lowly computer at work:

Strelka_5.5x64 (128-Mb hash):

Code: Select all

  21	01:24	 140 609 981	1 670 567	+M7	d2-d3 c4xd3 Rf2-f4 g5xf4 Ra8-a4 Bc6xa4 Qg8-g2 a2-a1Q Nh4-g6 f7xg6 Qg2-a8 b6-b5 Qa8-g8+
by Dan Astrachan
Wed Aug 29, 2012 1:44 pm
Forum: Computer Chess Club: General Topics
Topic: Gab's test position 2
Replies: 2
Views: 488

Re: Gab's test position 2

[D]2rr2k1/pbqn1pp1/3bpn2/1B4N1/3P3R/P1N1B3/1PQ2P2/2R1K3 w - - 0 23 Analysed the position for 30 minutes with three engines. All of them chose 23 Bd3 as best move. - ( IvanHoe999946h, 4-Gb hash ) bm Bb5-d3 27 27:55 17 771 957 936 10 616 000 +1,24 Bb5-d3 Nd7-b6 Bd3-h7+ Kg8-f8 Bh7-g6 Nb6-c4 Qc2-e2 Bd6-...
by Dan Astrachan
Wed Aug 29, 2012 11:39 am
Forum: Computer Chess Club: General Topics
Topic: Gab's test position
Replies: 3
Views: 581

Re: Gab's test position

[d]5k2/2q5/p2pQ2p/P6P/2p3PN/1p6/1b3P2/6K1 w - - 0 43 IvanHoe999946h, 4-Gb hash: 26+ 04:42 3 131 084 336 11 144 000 +11,92 Nh4-g6+ Kf8-g7 g4-g5 h6xg5 h5-h6+ Kg7-h7 Ng6-e7 Qc7xe7 Qe6xe7+ Kh7xh6 Qe7xd6+ Kh6-h5 Qd6-d5 Bb2-g7 Qd5-f7+ Kh5-h6 Qf7xc4 b3-b2 Qc4xa6+ Kh6-h5 Qa6-d3 Bg7-d4 a5-a6 Kh5-h6 Qd3-e4 Kh...
by Dan Astrachan
Wed Aug 29, 2012 11:31 am
Forum: Computer Chess Club: General Topics
Topic: Gab test position 3
Replies: 4
Views: 821

Re: Gab test position 3

[D]r1r1b3/q4ppk/3Bp2p/2Pp1P2/p2N4/P5QP/6PK/2R5 w - - 0 37 IvanHoe999946h, 4-Gb hash: 28+ 1:47:13 71 370 434 382 11 095 000 +10,08 f5-f6 g7xf6 Qg3-h4 Be8-b5 Bd6-f4 Rc8xc5 Rc1xc5 Qa7xc5 Qh4xh6+ Kh7-g8 Qh6xf6 Bb5-d7 Bf4-h6 Qc5-d6+ g2-g3 Qd6-f8 Bh6xf8 Ra8xf8 Qf6-g5+ Kg8-h7 Qg5-e7 Kh7-g8 Qe7xd7 Rf8-b8 Kh...
by Dan Astrachan
Mon Aug 27, 2012 3:08 pm
Forum: Computer Chess Club: General Topics
Topic: Which move is best ?
Replies: 2
Views: 740

Re: Which move is best ?

FEN: [D] rnbqkbnr/1p2pppp/p7/2p5/2PpP3/1Q6/PP1P1PPP/RNB1KBNR b KQkq - 0 5 IvanHoe999946h, 4-Gb hash: --------------------------------------------------------------------------- 27 12:39 6 871 448 680 9 043 000 +0,56 e7-e5 d2-d3 Nb8-c6 Ng1-f3 Ng8-f6 Bf1-e2 Bf8-e7 O-O O-O Qb3-d1 h7-h6 Nb1-d2 Bc8-e6 h2...
by Dan Astrachan
Thu Aug 16, 2012 1:46 pm
Forum: Computer Chess Club: General Topics
Topic: Clueless computers
Replies: 4
Views: 1389

Re: Clueless computers

[D] 4r3/5p1p/4b1pK/p1p5/1pk1P3/2P1R1P1/P2R3P/8 w - - IvanHoe999946h, 4-gb hash: 32 59:15 38 276 471 521 10 770 000 -0,19 Kh6xh7 b4-b3 a2xb3+ Kc4xb3 h2-h4 a5-a4 Kh7-g7 Re8-e7 c3-c4+ Kb3xc4 Rd2-d1 Re7-a7 Rd1-a1 Kc4-b4 Ra1-b1+ Be6-b3 g3-g4 c5-c4 h4-h5 g6xh5 g4xh5 a4-a3 h5-h6 f7-f5+ Kg7-g6 a3-a2 Rb1-a1 ...
by Dan Astrachan
Tue Aug 14, 2012 3:02 pm
Forum: Computer Chess Club: General Topics
Topic: Test position
Replies: 20
Views: 3684

Re: Test position

It really is. I'd like to see a few more engines working on this one. Here you go, all engines using a 4-Gb hash: [D] r2q1r2/1b2bpkp/p3p1p1/2ppP1P1/7R/1PN1BQR1/1PP2P1P/4K3 w - - 4 19 IvanHoe999946h: 24+ 01:44 1 009 261 767 9 753 000 -0,34 Qf3-f6+ 24+ 02:04 1 212 099 014 9 841 000 +3,56 Qf3-f6+ (......
by Dan Astrachan
Mon Aug 13, 2012 1:19 pm
Forum: Computer Chess Club: General Topics
Topic: test position: Plomp-Sanakoev, Simon Webb Memorial ICCF 2007
Replies: 12
Views: 2241

Re: test position: Plomp-Sanakoev, Simon Webb Memorial ICCF

[d] r1b3r1/B2kb1pp/2qp4/p2Nn1P1/4P2P/4Q3/1PP2R2/1K1R4 w - - Ivanhoe 999946h, 4-gb hash: 26 32:14 19 823 934 100 10 251 000 +2,37 Ba7-d4 Ne5-c4 Qe3-f3 Rg8-e8 Qf3-f7 Ra8-b8 Qf7xg7 Rb8-b7 Bd4-f6 Kd7-d8 Nd5xe7 Rb7xe7 Qg7xh7 Bc8-g4 Rd1-d4 Nc4-a3+ b2xa3 Kd8-c8 Qh7-g6 Re7xe4 Rd4xe4 Re8xe4 Qg6-g8+ Kc8-b7 Qg...
by Dan Astrachan
Mon Aug 13, 2012 11:53 am
Forum: Computer Chess Club: General Topics
Topic: test position: Szczepanski-Mamonovas, 2009
Replies: 11
Views: 2015

Re: test position: Szczepanski-Mamonovas, 2009

[D] r1brnbk1/1p3ppp/p3p3/8/3N1P2/1Q2P3/P4PBP/3R2K1 w - - 0 23 Ivanhoe 999946h, 4-gb hash: 31 1:20:12 55 060 366 897 11 444 000 +0,88 Nd4-e2 Bc8-d7 Qb3xb7 Bd7-b5 Rd1xd8 Ra8xd8 Ne2-d4 Ne8-d6 Qb7-b6 Rd8-c8 Nd4xb5 Rc8-c1+ Bg2-f1 a6xb5 Kg1-g2 Rc1-c2 Bf1xb5 Rc2xa2 Bb5-d3 Ra2-d2 Qb6-d4 g7-g6 32 1:20:12 55 ...
by Dan Astrachan
Sun Aug 12, 2012 9:14 pm
Forum: Computer Chess Club: General Topics
Topic: test position: Szczepanski-Mamonovas, 2009
Replies: 11
Views: 2015

Re: test position: Szczepanski-Mamonovas, 2009

[D] 2b1Bbk1/5ppp/p3p3/8/1r3P2/4P3/P4P1P/3Q2K1 w - - Ivanhoe999946h, 4-Gb hash 28 04:41 1 312 370 342 4 690 000 +1,31 a2-a3 Rb4-c4 Qd1-b3 Rc4-c5 Kg1-g2 a6-a5 Qb3-b8 e6-e5 f4xe5 Bc8-e6 Qb8-b2 Rc5-c4 f2-f4 Rc4-c8 Be8-a4 g7-g6 Kg2-g3 h7-h5 h2-h4 Kg8-h7 Ba4-c2 Bf8-e7 Bc2-d1 Rc8-d8 Bd1-e2 Kh7-g7 Qb2-c3 Rd...