some test positions from SSDF

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

jdart
Posts: 4367
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

some test positions from SSDF

Post by jdart »

from a recent Deep Fritz 12-Shredder 11 match, both moves by Fritz:

[D] 3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - -

bm Nd7. Fritz gave this quite a high score. I think it's best but not clear to me it's winning.

[D] 6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - -

bm h3. Again, best in my testing but Arasan doesn't show a big score.

--Jon
Top
CRoberson
Posts: 2056
Joined: Mon Mar 13, 2006 2:31 am
Location: North Carolina, USA

Re: some test positions from SSDF

Post by CRoberson »

I put Telepath on the first one. It liked Nc6 for a while then jumped to Bg5 and stayed there until it started liking Rc8.
Top
jdart
Posts: 4367
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Re: some test positions from SSDF

Post by jdart »

A little more info on position 2:

in the game, Shredder played .. Qc8+ after h3 and lost. Arasan thinks that Rxa5 is the best response to h3. But if I let it think longer it starts to see that Black is better:

Arasan 11.7 Copyright 1994-2010 by Jon Dart
test hg2.epd 1800 -v
Using book file book.bin
bm hxg2
0 0.00 Nf3+ -2.45 5
0 0.00 g5 -1.44 44
0 0.00 Ng4 -0.08 110
1 0.00 -- -0.58 674
1 0.00 Ng4 -0.76 777
2 0.00 Ng4 -1.06 3723
2 0.00 hxg2 -1.05 4568
2 0.02 Rc6 -0.56 7447
3 0.02 Rc6 -0.80 13484
3 0.04 hxg2 -0.79 21274
4 0.05 hxg2 -0.84 47750
5 0.13 hxg2 -0.64 98670
6 0.27 hxg2 -0.56 229173
7 0.52 hxg2 -0.60 621325
8 0.88 hxg2 -0.11 1296201
9 1.89 hxg2 +0.36 3151062
10 3.13 hxg2 +0.43 5860879
11 5.46 hxg2 +0.40 10770402
12 11.04 hxg2 +0.40 22499983
13 23.02 hxg2 +0.44 50894642
14 58.36 hxg2 +0.39 130296182
15 110.52 hxg2 +0.40 253347269
16 225.82 hxg2 +0.44 521117905
17 465.64 hxg2! +0.94 1106601935
Top
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: some test positions from SSDF

Post by zullil »

jdart wrote:from a recent Deep Fritz 12-Shredder 11 match, both moves by Fritz:

[D] 3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - -

bm Nd7. Fritz gave this quite a high score. I think it's best but not clear to me it's winning.
Stockfish-1.6.3 (8 threads):

Code: Select all

Searching: 3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 2     -0.08   00:01      283 Nd7 Nxd7 Bxd6 
 3     -0.36   00:01      606 Nd7 Nxd7 Bxd6 b4 
 4     -0.89   00:01     2047 Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 
 4     -0.57   00:01     3812 Nc6 Nxc6 Bxd6 Nb4 Rc8 
 5     -0.89   00:01     4526 Nc6 Nxc6 Bxd6 Nb4 Rc8 Re8 
 5     -0.61   00:01     5487 Nd7 Bxf4 Nxf6+ gxf6 exf4 Qb4 Qd3 
 6     -0.44   00:01    10662 Nd7 Bxf4 Nxf6+ gxf6 exf4 Qb4 Ne2 f5 Rg3+ Kh8 
 7  >  -0.08   00:01    17367 Nd7 Bxf4 Nxf6+ gxf6 exf4 Qb4 Nh5 Qxd4 Rd3 
 8     -0.08   00:01    19027 Nd7 Bxf4 Nxf6+ gxf6 exf4 Qb4 Nh5 Qxd4 Rd3 Qa4 
                              Rg3+ Kh8 Qxa4 bxa4 Nxf6 
 9     -0.24   00:01    73114 Nd7 Bxf4 Nxf6+ gxf6 exf4 Qb4 Nh5 f5 Qd3 Kh8 Qe3 
                              f6 a3 Qe7 Qg3 Nb7 
10     -0.28   00:01   114774 Nd7 Bxf4 Nxf6+ gxf6 exf4 Qb4 Qd3 Kh8 a3 Qe7 Rc8 
                              Rg8 Kf1 Qd6 
10  >  +0.44   00:01   135886 Nc6 Nxc6 Bxd6 Nb4 Qb1 Nxa2 Ra3 
11     +0.00   00:01   295687 Nc6 Qc7 Bxd6 Qxd6 Ne5 Ne8 Rc8 b4 Nd3 a5 Qa4 Qb6 
12     -0.12   00:01    1289k Nc6 Qc7 Bxd6 Qxd6 Ne5 Nb7 Rc6 Qa3 Nf1 a5 Rc3 Qb4 
                              Rc7 Nd6 Nd2 
13     -0.28   00:01    1854k Nc6 Qc7 Bxd6 Qxd6 Ne5 Nb7 Rc6 Qa3 Nf1 Ne4 f3 Nf6 
                              Rc3 Qa5 Rc6 Rd8 Rc7 Nd6 Nd2 Rf8 
14     -0.24   00:01    2596k Nc6 Qc7 Bxd6 Qxd6 Ne5 Nb7 Rc6 Qa3 Nf1 Ne4 f3 Nf6 
                              Rc3 Qa5 Rc6 Rd8 Rc3 Re8 Rc6 Re7 Rc8+ Nd8 Nc6 
15  >  +0.00   00:02    4534k Nc6 Qc7 Na7 Qd7 Bxd6 Qxd6 Nc8 Qb4 Qc1 Qa5 a3 Re8 
                              Rc7 h6 Nd6 
16     +0.12   00:02    7242k Nc6 Qc7 Be5 Ne8 Nh5 Bxe5 Nxe5 Qe7 Rc8 f6 Nc6 Nxc6 
                              Rxc6 Qd7 Rxa6 Nd6 Nf4 g5 Nd3 
17     -0.04   00:03   18045k Nc6 Qc7 Nb4 Qb6 Bxd6 Qxd6 Nd3 Nb7 Rc6 Qb8 Rxa6 
                              Nd6 Qc5 Nc4 Qa7 Qc8 a4 bxa4 Rxa4 
17  >  +0.85   00:04   24260k Nd7 Nxd7 Bxd6 Re8 Rc8 Qe1+ Nf1 Nb6 Qc6 
18     +0.77   00:06   43380k Nd7 Bxf4 Nxf6+ gxf6 exf4 Qa4 Qxa4 bxa4 f5 exf5 
                              Nxf5 Ne6 Ra3 Nc7 Rxa4 Rb8 Kf1 Rb2 g4 Kf8 Kg2 Ke8 
                              Ra3 
19     +0.89   00:09   61927k Nd7 Bxf4 Nxf6+ gxf6 exf4 Qa4 Qxa4 bxa4 f5 Kg7 
                              Nh5+ Kh6 Nxf6 Rh8 fxe6 Nxe6 Rc6 Rd8 Ng4+ Kg7 Rxa6 
                              Nxd4 Rxa4 Nc6 Kf1 Re8 Ne3 
20     +0.93   00:11   81357k Nd7 Bxf4 Nxf6+ gxf6 exf4 Qa4 Qxa4 bxa4 f5 Kg7 
                              Nh5+ Kh6 Nxf6 Kg7 Nd7 Rh8 Rg3+ Kh6 Rf3 a5 fxe6 
                              Nxe6 Rf5 Rd8 Rxd5 Nf4 Rd6+ Kg7 Kf1 
21     +1.01   00:16  122492k Nd7 Bxf4 Nxf6+ gxf6 exf4 Qa4 Qxa4 bxa4 f5 h6 Rc5 
                              Nb7 Rc6 e5 Rxa6 Rd8 Rxa4 Kf8 Nh5 Ke7 Kf1 Rd7 Ra7 
                              Nc5 Rxd7+ Nxd7 a4 Nb8 dxe5 fxe5 Ke2 
22     +1.17   00:26  217648k Nd7 Bxf4 Nxf6+ gxf6 exf4 Qa4 Qxa4 bxa4 f5 exf5 
                              Nxf5 Ne6 Rg3+ Kh8 Ra3 Nc7 Rxa4 Rb8 Ra5 Rb5 Ra3 
                              Rb1+ Kh2 Rb2 Kg3 h5 Ra5 Kh7 Ne3 h4+ Kxh4 Rxf2 Rc5 
                              Ne6 
23  >  +1.58   01:09  592855k Nd7 Nxd7 Bxd6 Nb6 Ra3 Qe1+ Kh2 Re8 Rb3 Na8 Bb4 
                              Qa1 Bc3 
24     +1.78   03:39    1844M Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 Rc5 b3 Qxb3 Qe1+ Nf1 
                              Qe4 Rc8 e5 fxe5 fxe5 Qg3+ Kh8 Qxe5+ Qxe5 dxe5 Ne6 
                              Rc6 Rb8 Rxa6 Rb1 g3 d4 Kg2 Rb2 Nh2 Ng5 Rd6 Ne4 
                              Rd8+ Kg7 Ng4 h5 Rxd4 hxg4 Rxe4 gxh3+ Kxh3 Rxf2 
25     +1.86   05:00    2508M Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 Rc5 b3 Qxb3 Qe1+ Nf1 
                              Qe4 Rc8 e5 fxe5 fxe5 Qg3+ Kh8 Qxe5+ Qxe5 dxe5 Ne6 
                              Rxf8+ Nxf8 Ne3 Ng6 Nxd5 Nxe5 Kf1 Nd3 g4 Kg7 f4 a5 
                              a3 Nb2 Ke2 Nc4 a4 Nb2 Nc3 Kf6 g5+ Kf5 
26     +1.82   07:26    3710M Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 Rc5 b3 Qxb3 Qe1+ Nf1 
                              Qe4 Rc8 e5 fxe5 Qxd4 exf6 Qxf6 Qxd5 Ne6 Rxf8+ 
                              Nxf8 Ne3 Ng6 Nf5 Qe5 Qxe5 Nxe5 Kf1 Nd3 g3 f6 a3 
                              Kf7 Ke2 Nc5 Ke3 
27     +1.90   12:14    6126M Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 Rc5 b3 Qxb3 Qe1+ Nf1 
                              Qe4 Rc8 e5 fxe5 Qxd4 exf6 Qxf6 Qxd5 Ne6 Rxf8+ 
                              Nxf8 Ne3 Ng6 g3 Ne7 Qe4 Qe6 Qxe6 fxe6 Kg2 Kf7 Kf3 
                              Nf5 Ng4 Ke7 Ne5 Kd6 Ke4 Kc5 Nd3+ Kc4 
28  >  +2.10   26:19   13207M Nd7 Nxd7 Bxd6 Nb6 Ra3 Na4 Qc8 g6 Qd7 Kg7 Qe7 Qe1+ 
                              Nf1 
29     +2.06 1:16:53   38585M Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 Rc5 b3 Qxb3 Qe1+ Nf1 
                              Qe4 Rc8 Qxf4 Qb6 Kg7 Rxd8 Rxd8 Qxd8 Qxd4 g4 h5 
                              gxh5 Qh4 Ng3 Qxh3 Qb6 f5 Qxa6 f4 Qd3 Qg4 Qd4+ Kh7 
                              a4 Qg5 Qd3+ Kh8 Qd2 e5 Qxd5 fxg3 Qxf7 gxf2+ Kxf2 
                              Qh4+ Kf3 Qxa4 Qf6+ Kh7 Qxe5 
Nodes: 48795057490
Nodes/second: 8379250
Best move: Nd7
Ponder move: Bxf4
Top
Dann Corbit
Posts: 12541
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: some test positions from SSDF

Post by Dann Corbit »

jdart wrote:from a recent Deep Fritz 12-Shredder 11 match, both moves by Fritz:

[D] 3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - -

bm Nd7. Fritz gave this quite a high score. I think it's best but not clear to me it's winning.
{snip}
Multi-pv analysis:
3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - - acd 24; acn 2211107817; acs 387; bm Nc6; ce 15; pv Nc6 Qc7 Na5 Qe7 Bxd6 Qxd6 Rc8 Re8 Qc7 Qxc7 Rxc7 Kf8 Ra7 Re7 Ra8 Ke8 Nc6 Rd7 f3 Rd6 Nb4 Nd7 Kf2 Ke7 Ne2 Nb6 Ra7+ Rd7 Rxa6 Nc4 Nc3;
3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - - acd 24; acn 2211107817; acs 387; bm Rc8; ce 48; pv Rc8 Be7 Qc7 Qxc7 Rxc7 Re8 Ra7 h6 Ne2 Ne4 Rxa6 b4 Nd3 g5 Bh2 Nb7 Rb6 Na5 Nxb4 Bf8 Nd3 Rc8 Kf1 Nc4;
3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - - acd 24; acn 2600285475; acs 454; bm Nd7; ce 160; pv Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 Rc5 b3 Qxb3 Qe1+ Nf1 Qe4 Rc8 e5 fxe5 Qxd4 exf6 Qxf6 Qxd5 Ne6 Rc6 Rd8 Qh5 Ra8 Ne3 Qg5 Qxg5+ Nxg5 Nf5 a5 h4 Ne6 g3 Rb8 Ra6 Rb5;

Two very strong engines take a quick look:
3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - - acd 27; acn 2277131661; acs 399; bm Nd7; ce 156; pv Nd7 Bxf4 Nxf6+ gxf6 exf4 b4 Rc5 b3 Qxb3 Qe1+ Nf1 Qe4 Rc8 e5 fxe5 Qxd4 exf6 Qxf6 Qxd5 Ne6 Rxf8+ Nxf8 Ne3 Qe6 g3 Kg7 Qd4+ f6 g4 Qxa2 Qa7+ Qf7 Nf5+ Kg6 Qxa6 Qd7 Qa8 Kf7 Qe4 Ne6 Kg2 Kg8 h4;
3n1rk1/5ppp/p2bpn2/qp1pN3/3P1B2/2R1P1NP/P1Q2PP1/6K1 w - - acd 29; acn 2489839009; acs 515; bm Nd7; ce 117; pv Nd7 Bxf4 Nxf6+ gxf6 exf4 Qa4 Qxa4 bxa4 f5 h6 Rc5 Nb7 Rc6 e5 Nh5 exd4 Nxf6+ Kg7 Nh5+ Kh7 Nf4 Rd8 Kf1 a5 Ke2 Nd6 g4 Ne4 Rc2 Rb8 Kd3 Nc3 Nh5 Rb4 a3 Rb3 Kxd4 Nb5+ Kxd5 Rxh3 Rc5 Rb3 Nf4 Nxa3 Rxa5;
Top
Dann Corbit
Posts: 12541
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: some test positions from SSDF

Post by Dann Corbit »

jdart wrote:from a recent Deep Fritz 12-Shredder 11 match, both moves by Fritz:
{snip}
[D] 6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - -

bm h3. Again, best in my testing but Arasan doesn't show a big score.

--Jon
Various strong engines at ten minutes said:
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 16/52; acn 618405635; acs 554; bm h3; ce 38; pv h3 Ra8+ Kh7 Qc8 hxg2 Bxg2 Rxa4 Qg8+ Kh6 Qf8+ Kh5 Qc5 Rg4 Rb3 Qf5 Rh8+ Kg5 Qd5 Nc6 Qd1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 16; acn 28149037; acs 233; bm h3; ce 41; pv h3 Rxa5 Kg7 Rc5 Rd6 Rc3 hxg2 Bxg2 Ng4 Rf1 Nxf2 Rc4 Nd3 Rcxf4 Nxf4 Kh1 g5 Bf3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 17/60; acn 906021358; acs 231; bm h3; ce 60; pv h3 Qc8+ Kh7 Ra8 hxg2 Bxg2 Rxa4 Rd1 Ng4 Rf1 Qe5 f4 Qd4+ Kh1 Qg7 Qd8 Ra1 Qh4+ Nh6 Qg5 Nf5;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 17/71; acn 2990731091; acs 507; bm Rc6; ce 56; pv Rc6 Qd2 Rxa4 Ra8+ Kh7 Rxa5 Rxa5 Qxa5 Rc2 Qb6 Qxb6 Rxb6 Rc1 f3 Kg7 Kf2 h3 gxh3 Nxf3 Kxf3 Rxf1+ Kg4 Re1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 19; acn 1667227575; acs 587; bm h3; ce 32; pv h3 Rxa5 Kg7 Rab5 Ng4 Qb2 hxg2 Qxf6+ Rexf6 Bxg2 Rxa4 R5b2 Ne5 Rd1 Rff4 Rc2 Rfd4 Rb1 Rab4 Ra1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 3485836166; acs 583; bm h3; ce 65; pv h3 Qc8+ Kh7 Ra8 hxg2 Be2 Nc6 Qg8+ Kh6 Qf8+ Qg7 Qa3 Ree4 Bf3 Rxa4 Qe3 Ne5 Bxg2 Ng4 Qg3 Qf6 Qh3+ Kg5 Rh8 Rab4 Rd1 Qb2 Rd5+ Ne5 Qg3+ Kf6 Rhd8 Kg7 h3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 3485836166; acs 583; bm Rc6; ce 37; pv Rc6 Qd2 Rd6 Ra8+ Kh7 Qc2 Rc6 Qe2 Re6 Qc2 Ng4 Qc8 Qg7 Qb8 Rxf2 h3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 4745971151; acs 562; bm Rc6; ce 37; pv Rc6 Qe2 Rxa4 Rb5 Ng4 Qe8+ Kg7 Rb2 Rb4 Ra8 Kh6 Rd2 Qe5 Qxe5 Nxe5 Rxa5 f6 Be2 Rc1+ Bd1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 5104879209; acs 472; bm h3; ce 53; pv h3 Rxa5 Kg7 Rc5 Rg4 Kh1 Rd4 Kg1 Qf4 g3 Qf6 Rc8 Rd2 Qc5 Nf3+ Kh1 Re5 Qf8+ Kh7;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 613264748; acs 109; bm Nc6; ce 16; pv Nc6 Ra6 Rb4 h3 Kg7 Rxb4 Nxb4 Rxe6 Nxc2 Rxf6 Kxf6 Bc4 Nd4 Kf1 Ne6 Ke2 Nc5 Bb5 Ke5 Ke3 f5 f4+;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 21/48; acn 1172211949; acs 292; bm Kg7; ce 42; pv Kg7 h3 Rc6 Qd2 Rd4 Qxa5 Rc2 Qe1 Rf4 Ra5 Nc6 Rd5 Rfxf2 a5 Ne7 Rd8 Qf4 a6 Nf5 Rb7 Ng3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 22/56; acn 3563930380; acs 536; bm h3; ce 103; pv h3 Qc8+ Kh7 Ra8 hxg2 Bxg2 Rxa4 Rf1 Nd3 Qg8+ Kh6 Qf8+ Kh5 Rd8 Ne1 Rd5+ g5 h3 Nxg2 Kxg2 Ra2 Qg8 Kh6 Qf8+ Qg7 Qxg7+ Kxg7 Rxg5+ Rg6 Rg3 Rxg3+ Kxg3 a4;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 22; acn 2376754994; acs 522; bm h3; ce 84; pv h3 Ra8+ Kh7 Qc8 hxg2 Bxg2 Rxa4 Rf1 Nd3 Qg8+ Kh6 Qf8+ Qg7 Qd8 Rd4 Qxa5 Nf4 Qa3 Re2 Qg3 g5 Ra5 Re5 Ra6+ Kh7 Qf3 Re2 Qb7 Nxg2 Qxg2 g4 Qc6 Rdd2 Qb6;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 23+; acn 2323172222; acs 509; bm h3; ce 84; pv h3 Ra8+ Kh7 Qc8 hxg2 Be2 Rxf2 Qg8+ Kh6 Qh8+ Qxh8 Rxh8+ Kg7 Kxf2 Kxh8 Kxg2;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 23; acn 2308513673; acs 513; bm h3; ce 64; pv h3 Rxa5 Kg7 Rc5 Rd6 Qc3 hxg2 Qxe5 gxf1=Q+ Rxf1 Rg4+ Kh1 Qxe5 Rxe5 Rxa4 Kg2 Rd2 Re3 Rg4+ Kf3 Rg5 h3 Kf6 Rc3 Re5 Kg3 Ree2 f4 Rd4 Rb1 Ree4 Rc6+ Re6;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 23; acn 2413260860; acs 420; bm h3; ce 59; pv h3 Ra8+ Kh7 Qc8 hxg2 Be2 Nc6 Qg8+ Kh6 Qf8+ Qg7 Qa3 Ree4 Bf3 Rxa4 Qe3 Ne5 Bxg2 Ng4 Qg3 Rf5 Bf3 Qe5 Bxg4 Qxg3+ hxg3 Rxg4 Ra1 Rgg5 Kg2 Rb5 Ra7 Kg7 Rd1 Rb2 Rdd7;


I guess that this one will take a very long time to resolve with certainty
Top
User avatar
Eelco de Groot
Posts: 4567
Joined: Sun Mar 12, 2006 2:40 am
Full name:   

Re: some test positions from SSDF

Post by Eelco de Groot »

Dann Corbit wrote:
jdart wrote:from a recent Deep Fritz 12-Shredder 11 match, both moves by Fritz:
{snip}
[D] 6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - -

bm h3. Again, best in my testing but Arasan doesn't show a big score.

--Jon
Various strong engines at ten minutes said:
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 16/52; acn 618405635; acs 554; bm h3; ce 38; pv h3 Ra8+ Kh7 Qc8 hxg2 Bxg2 Rxa4 Qg8+ Kh6 Qf8+ Kh5 Qc5 Rg4 Rb3 Qf5 Rh8+ Kg5 Qd5 Nc6 Qd1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 16; acn 28149037; acs 233; bm h3; ce 41; pv h3 Rxa5 Kg7 Rc5 Rd6 Rc3 hxg2 Bxg2 Ng4 Rf1 Nxf2 Rc4 Nd3 Rcxf4 Nxf4 Kh1 g5 Bf3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 17/60; acn 906021358; acs 231; bm h3; ce 60; pv h3 Qc8+ Kh7 Ra8 hxg2 Bxg2 Rxa4 Rd1 Ng4 Rf1 Qe5 f4 Qd4+ Kh1 Qg7 Qd8 Ra1 Qh4+ Nh6 Qg5 Nf5;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 17/71; acn 2990731091; acs 507; bm Rc6; ce 56; pv Rc6 Qd2 Rxa4 Ra8+ Kh7 Rxa5 Rxa5 Qxa5 Rc2 Qb6 Qxb6 Rxb6 Rc1 f3 Kg7 Kf2 h3 gxh3 Nxf3 Kxf3 Rxf1+ Kg4 Re1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 19; acn 1667227575; acs 587; bm h3; ce 32; pv h3 Rxa5 Kg7 Rab5 Ng4 Qb2 hxg2 Qxf6+ Rexf6 Bxg2 Rxa4 R5b2 Ne5 Rd1 Rff4 Rc2 Rfd4 Rb1 Rab4 Ra1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 3485836166; acs 583; bm h3; ce 65; pv h3 Qc8+ Kh7 Ra8 hxg2 Be2 Nc6 Qg8+ Kh6 Qf8+ Qg7 Qa3 Ree4 Bf3 Rxa4 Qe3 Ne5 Bxg2 Ng4 Qg3 Qf6 Qh3+ Kg5 Rh8 Rab4 Rd1 Qb2 Rd5+ Ne5 Qg3+ Kf6 Rhd8 Kg7 h3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 3485836166; acs 583; bm Rc6; ce 37; pv Rc6 Qd2 Rd6 Ra8+ Kh7 Qc2 Rc6 Qe2 Re6 Qc2 Ng4 Qc8 Qg7 Qb8 Rxf2 h3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 4745971151; acs 562; bm Rc6; ce 37; pv Rc6 Qe2 Rxa4 Rb5 Ng4 Qe8+ Kg7 Rb2 Rb4 Ra8 Kh6 Rd2 Qe5 Qxe5 Nxe5 Rxa5 f6 Be2 Rc1+ Bd1;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 5104879209; acs 472; bm h3; ce 53; pv h3 Rxa5 Kg7 Rc5 Rg4 Kh1 Rd4 Kg1 Qf4 g3 Qf6 Rc8 Rd2 Qc5 Nf3+ Kh1 Re5 Qf8+ Kh7;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 20; acn 613264748; acs 109; bm Nc6; ce 16; pv Nc6 Ra6 Rb4 h3 Kg7 Rxb4 Nxb4 Rxe6 Nxc2 Rxf6 Kxf6 Bc4 Nd4 Kf1 Ne6 Ke2 Nc5 Bb5 Ke5 Ke3 f5 f4+;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 21/48; acn 1172211949; acs 292; bm Kg7; ce 42; pv Kg7 h3 Rc6 Qd2 Rd4 Qxa5 Rc2 Qe1 Rf4 Ra5 Nc6 Rd5 Rfxf2 a5 Ne7 Rd8 Qf4 a6 Nf5 Rb7 Ng3;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 22/56; acn 3563930380; acs 536; bm h3; ce 103; pv h3 Qc8+ Kh7 Ra8 hxg2 Bxg2 Rxa4 Rf1 Nd3 Qg8+ Kh6 Qf8+ Kh5 Rd8 Ne1 Rd5+ g5 h3 Nxg2 Kxg2 Ra2 Qg8 Kh6 Qf8+ Qg7 Qxg7+ Kxg7 Rxg5+ Rg6 Rg3 Rxg3+ Kxg3 a4;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 22; acn 2376754994; acs 522; bm h3; ce 84; pv h3 Ra8+ Kh7 Qc8 hxg2 Bxg2 Rxa4 Rf1 Nd3 Qg8+ Kh6 Qf8+ Qg7 Qd8 Rd4 Qxa5 Nf4 Qa3 Re2 Qg3 g5 Ra5 Re5 Ra6+ Kh7 Qf3 Re2 Qb7 Nxg2 Qxg2 g4 Qc6 Rdd2 Qb6;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 23+; acn 2323172222; acs 509; bm h3; ce 84; pv h3 Ra8+ Kh7 Qc8 hxg2 Be2 Rxf2 Qg8+ Kh6 Qh8+ Qxh8 Rxh8+ Kg7 Kxf2 Kxh8 Kxg2;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 23; acn 2308513673; acs 513; bm h3; ce 64; pv h3 Rxa5 Kg7 Rc5 Rd6 Qc3 hxg2 Qxe5 gxf1=Q+ Rxf1 Rg4+ Kh1 Qxe5 Rxe5 Rxa4 Kg2 Rd2 Re3 Rg4+ Kf3 Rg5 h3 Kf6 Rc3 Re5 Kg3 Ree2 f4 Rd4 Rb1 Ree4 Rc6+ Re6;
6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - - acd 23; acn 2413260860; acs 420; bm h3; ce 59; pv h3 Ra8+ Kh7 Qc8 hxg2 Be2 Nc6 Qg8+ Kh6 Qf8+ Qg7 Qa3 Ree4 Bf3 Rxa4 Qe3 Ne5 Bxg2 Ng4 Qg3 Rf5 Bf3 Qe5 Bxg4 Qxg3+ hxg3 Rxg4 Ra1 Rgg5 Kg2 Rb5 Ra7 Kg7 Rd1 Rb2 Rdd7;


I guess that this one will take a very long time to resolve with certainty
This I got with the second one, I stopped it now, for a really deep search you'd really need a machine like Louis has so not much point trying to search much further.

[D]6k1/R4p2/4rqp1/p3n3/P4r1p/8/2Q2PPP/1R3BK1 b - -

Engine: Rainbow Serpent 1.6.3s(dc) Build 182 (Athlon 2009 MHz, 256 MB)
by Tord Romstad, Marco Costalba, Joona Kiiski Modifications: Dann Corbit

1.00 0:00 -0.64 1...Qd8 (890) 3

2.00 0:00 -1.81 1...Qd8 2.Rbb7 (984) 3

2.00 0:00 -0.96 1...Rd6 2.Rxa5 Rd8 (2.007) 8

3.00 0:00 -0.96 1...Rd6 2.Rxa5 Rfd4 3.Ra8+ Rd8
4.Rxd8+ Qxd8 (6.938) 26

3.00 0:00 -0.84 1...Qd8 2.Rd1 Rd4 3.Rxd4 Qxd4 4.Rxa5 (8.529) 32

4.00 0:00 -0.88 1...Qd8 2.Rd1 Rd6 3.Rxd6 Qxd6 4.Rxa5 (14.719) 52

5.00 0:00 -0.88 1...Qd8 2.Rd1 Qf8 3.Rxa5 Ng4 4.Ra8 Qxa8 (34.057) 103

5.00 0:00 -0.36 1...Rc6 2.Qd2 h3 3.Rxa5 Qg5 4.Rb8+ Kg7 (106.667) 235

6.00 0:01 -0.60 1...Rc6 2.Qd2 Rc8 3.Rxa5 Qg5 4.Rb7 (542.284) 423

7.01 0:03 -0.04 1...Rc6 2.Qd2 Rd6 3.Ra8+ Kh7 4.Qc2 Rc6
5.Qa2 Ng4 (1.633.981) 484

8.01 0:04 -0.20 1...Rc6 2.Rb8+ Kh7 3.Qe2 Re6 4.Qb2 Rxa4
5.Raa8 Rb4 6.Rxb4 axb4 7.Qxb4 (2.346.628) 510

9.01 0:08 0.00 1...Rc6 2.Qd2 Rd6 3.Qc2 Rc6 (4.433.724) 538

10.01 0:09 0.00 1...Rc6 2.Qd2 Rd6 3.Qc2 Rc6 (4.973.964) 539

11.01 0:16 -0.20-- 1...Rc6 2.Qd2 Rd6 3.Qe3 Rd8 4.Rb6 (9.006.894) 553

11.05 0:32 0.00 1...Re8 2.Rbb7 Rf5 3.h3 Nf3+ 4.gxf3 Rg5+
5.Kh1 Qxf3+ 6.Kh2 Qf4+ 7.Kh1 Qf3+ (18.180.317) 554

12.01 0:35 0.00 1...Re8 2.Bb5 Rd8 3.h3 Rf5 4.Re1 Rg5
5.Kh1 Nf3 6.Rd1 Rgd5 7.Rc1 Nd4 (19.745.725) 555

13.01 1:24 0.00 1...Re8 2.h3 Rf5 3.Rd1 Nf3+ 4.gxf3 Rg5+
5.Kh1 Qxf3+ 6.Kh2 Qf4+ 7.Kh1 Qf3+ (46.252.061) 549

13.12 3:25 +0.20++ 1...h3 2.Rxa5 hxg2 3.Bxg2 Kh7 4.Rb3 Rg4
5.Rh3+ Kg7 6.Kh1 Nf3 (111.270.059) 542

14.01 4:04 0.00 1...h3 2.Ra8+ Kh7 3.Qc8 Rxf2 4.Qg8+ Kh6
5.Qh8+ Qxh8 6.Rxh8+ Kg7 7.Kxf2 Kxh8
8.gxh3 Kg7 9.Rb5 Rf6+ 10.Kg2 Nc6
11.Rc5 Rd6 12.Kg3 f5 13.h4 Kf6
14.Bg2 Ne5 (132.861.213) 544

15.01 15:27 +0.48 1...h3 2.Ra8+ Kh7 3.Qc8 hxg2 4.Bxg2 Nd3
5.Qg8+ Kh6 6.Qf8+ Qg7 7.Qxg7+ Kxg7
8.Rxa5 Re2 9.h3 Nxf2 10.Rf1 Kf6
11.Ra6+ Ke5 12.Ra7 Ra2 13.Re1+ Kf6
14.Ree7 Kg7 (489.095.058) 527

16.01 18:20 +0.36 1...h3 2.Ra8+ Kh7 3.Qc8 hxg2 4.Bxg2 Nd3
5.Qg8+ Kh6 6.Qf8+ Qg7 7.Qxg7+ Kxg7
8.Rxa5 Re2 9.Rf1 Rfxf2 10.Rxf2 Nxf2
11.Ra7 Rd2 12.h3 Kf6 13.a5 Nd3
14.Rd7 Ke6 (580.596.563) 527

17.01 25:05 +0.56 1...h3 2.Ra8+ Kh7 3.Qc8 hxg2 4.Bxg2 Rxa4
5.Qg8+ Kh6 6.Qf8+ Qg7 7.Qd8 Rd4
8.Qxa5 Qf6 9.Qa3 Nd3 10.Qf8+ Qg7
11.Qxg7+ Kxg7 12.Rd1 f5 13.Ra5 Red6
14.Bf3 Kf6 (790.120.342) 524

18.01 51:34 +0.72 1...h3 2.Ra8+ Kh7 3.Qc8 hxg2 4.Bxg2 Rxa4
5.Qg8+ Kh6 6.Qf8+ Kg5 7.Qc8 Nd3
8.Qc2 Ra3 9.Bf1 Qd4 10.Qd2+ Qf4
11.Rb5+ Kf6 12.Qxf4+ Nxf4 13.Rbxa5 Rxa5
14.Rxa5 Rd6 (1.607.889.889) 519

19.01 91:22 +0.68 1...h3 2.Ra8+ Kh7 3.Qc8 hxg2 4.Bxg2 Rxa4
5.Qg8+ Kh6 6.Qf8+ Kg5 7.Qc8 Nd3
8.Qc2 Ra3 9.Rd1 Qb2 10.Qxb2 Nxb2
11.Rd5+ Kf6 12.Rdxa5 Re1+ 13.Bf1 Rxa5
14.Rxa5 Nd3 (2.840.611.908) 518

20.01 252:17 +0.92++ 1...h3 2.Ra8+ Kh7 3.Qc8 hxg2 4.Bxg2 Rxa4
5.Qg8+ Kh6 (7.974.488.045) 526

best move: h4-h3 time: 313:57.688 min n/s: 527.518 nodes: 9.937.230.537
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
Top

Return to “Computer Chess Club: General Topics”