Abillo position: Can any engine solve it?

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

Moderators: hgm, Rebel, chrisw

Dann Corbit
Posts: 12540
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Abillo position: Can any engine solve it?

Post by Dann Corbit »

Fig. 6.1: Korchnoi vs. Fischer: Black to play

[d]r1bq2k1/p5bp/3p1nnr/P1pPp3/2P1Pp2/1NN2R1P/4B1P1/1R1QB1K1 b - - bm Nh8;

1. ... Nh8

Reviewer Notes:
It's quite remarkable that Fischer was able to produce such a move in a few seconds. Modern chess programs, however, not only do not select that move in a few seconds, but neither do they when given many hours, preferring other alternatives.
Top
User avatar
OliverUwira
Posts: 170
Joined: Mon Sep 13, 2010 9:57 am
Location: Frankfurt am Main

Re: Abillo position: Can any engine solve it?

Post by OliverUwira »

Back in maybe 1994 I had 1700 ELO and beat Fritz 3 _every_ time when I played the King's Indian against it.

The idea to relocate the knight is a nobrainer for a real King's Indian player. Escpecially when one takes into account that the Rf3 will look silly once that knight reaches g5. It takes no big calculating to see that white cannot hinder black...
Top
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Abillo position: Can any engine solve it?

Post by zullil »

Dann Corbit wrote:Fig. 6.1: Korchnoi vs. Fischer: Black to play

[d]r1bq2k1/p5bp/3p1nnr/P1pPp3/2P1Pp2/1NN2R1P/4B1P1/1R1QB1K1 b - - bm Nh8;

1. ... Nh8
Stockfish-1.9.1 (8 threads) considers Nh8 several times, but seems to be converging to Nh4. The search is still running ...

Code: Select all

Searching: r1bq2k1/p5bp/3p1nnr/P1pPp3/2P1Pp2/1NN2R1P/4B1P1/1R1QB1K1 b - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
 2     -0.16   00:00     1179 Kh8 Qc2 
 3     +0.00   00:00     1594 Kh8 Qc2 Rb8 
 4     -0.16   00:00     2331 Kh8 Qc2 Rb8 Nb5 
 5     -0.08   00:00     3354 Kh8 Qc2 Nh4 Rd3 Rb8 
 6  >  +0.08   00:00     4673 Kh8 Qc2 Nh4 Rd3 Rb8 
 6  >  +0.24   00:00     7082 Kh8 Qc2 Rb8 Nb5 a6 
 6     +0.24   00:00     9514 Kh8 Qc2 Rb8 Nb5 a6 Nc3 
 7     +0.12   00:00    14305 Kh8 Bd3 Nh4 Bxh4 Rxh4 Qe1 Rh6 
 8     +0.20   00:00    21041 Kh8 Bd3 Nh4 Bxh4 Rxh4 Qe1 Rh6 Rf2 
 9     +0.24   00:00    39216 Kh8 Bd3 Nh4 Bxh4 Rxh4 Nb5 Bb7 Qe1 Rh6 
10  >  +0.32   00:00    70542 Kh8 Bd3 Nh4 Bxh4 Rxh4 Nb5 Bb7 Qe1 Rh6 
10     +0.32   00:00   124075 Kh8 Bf2 Rb8 Qe1 a6 Rb2 Bd7 Qa1 Nh4 Rd3 
11     +0.32   00:00   160333 Kh8 Bf2 Rb8 Qe1 Rh5 Bd3 Rg5 Nb5 a6 h4 Rg4 
12     +0.32   00:00   277250 Kh8 Bf2 Rb8 Qe1 Bd7 Rd3 Rb4 Rdd1 Ne7 Nxc5 dxc5 
                              Bxc5 
13  <  +0.24   00&#58;00   421975 Kh8 Bf2 Rb8 Qe1 Bd7 Rd3 Rb4 Rdd1 Ne7 Nxc5 dxc5 
                              Bxc5 
13  <  +0.16   00&#58;00   877890 Kh8 Rd3 Ba6 Nd2 Rb8 Rxb8 Qxb8 Bf2 Qb4 Qa4 
13  >  +0.40   00&#58;01    2008K Kh8 Rd3 Nh4 Bf2 Qe8 Qf1 Nxg2 Qxg2 Rg6 
13     +0.28   00&#58;01    2128K Kh8 Rd3 Nh4 Kh1 Qe8 Bxh4 Rxh4 Nd2 Qd8 Nb5 Rh6 
                              Rdb3 Rg6 
14  <  +0.20   00&#58;01    2337K Kh8 Rd3 Nh4 Bf2 Qe8 Qf1 Nxg2 Kxg2 Qg6+ Kh2 Rb8 
                              Qe1 Nxe4 Nxe4 Qxe4 Nd2 
14  <  +0.12   00&#58;01    2795K Kh8 Rd3 Nh4 Bf2 Ba6 Nd2 Qxa5 Ra1 
14  >  +0.36   00&#58;01    3884K Rb8 Nd2 Rxb1 Qxb1 Qxa5 Qb8 Ne7 Rd3 Rg6 Qxd6 Nfxd5 
14     +0.04   00&#58;01    5210K Kh8 Rd3 Nh4 Bf2 a6 Qe1 Ng6 Bf3 Rb8 Na4 Rb4 Nb6 
                              Bb7 Kh1 Qb8 Nd2 Ne7 Rdb3 
14     +0.08   00&#58;01    5490K Rb8 Nd2 Rxb1 Qxb1 Ne7 Nb5 Qd7 Ra3 a6 Nc3 Rg6 Kf1 
                              Rg5 Qb8 Ng6 Nf3 
15     +0.00   00&#58;02    7170K Rb8 Nd2 Rxb1 Qxb1 Ne7 Nb5 Qd7 Ra3 a6 Nc3 Rg6 Kf1 
                              Rxg2 Kxg2 Qxh3+ Kg1 Qe3+ Kh1 Qh3+ Kg1 
15  >  +0.32   00&#58;02    7674K Kh8 Rd3 Nh4 Bf2 Qg8 Qf1 Bf8 g4 Nxg4 hxg4 Bxg4 
                              Bxg4 Qxg4+ Kh1 Ng6+ 
15     +0.28   00&#58;02    8017K Kh8 Rd3 Nh4 Bf2 Qg8 Bf1 Bf8 Qe1 Qg5 Nd2 Bd7 Bxh4 
                              Qxh4 Qxh4 Rxh4 Nf3 Rh5 
16     +0.04   00&#58;02   10146K Kh8 Rd3 Nh4 Bf2 Qg8 Bf1 Bf8 Nd2 Bxh3 Rxh3 Nxg2 
                              Bxg2 Rxh3 Nf3 Ng4 Qe1 Nxf2 Qxf2 a6 Rb7 Qg3 Qxg3 
                              Rxg3 
16     +0.16   00&#58;03   15118K Ne7 Rf1 Rg6 Qd3 Rb8 Bh4 Rb7 Kh1 Qd7 Qf3 a6 Qd3 
                              Rb4 Bf3 Bh6 Bxf6 Rxf6 
17     +0.08   00&#58;03   16954K Ne7 Rf1 Rg6 Qd3 Rb8 Bh4 Ba6 Nb5 Qd7 Kh1 Kh8 Kg1 
                              Bc8 Kh1 a6 Nc3 Rb4 Bf3 Rb7 
17     +0.12   00&#58;04   23953K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 Qd8 Rd2 Bd7 Bd3 Kh8 Ra2 
                              Qc8 Kh1 a6 Bh4 Rg6 
18  >  +0.24   00&#58;04   25683K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 Qd8 Rd2 Bf8 Nh4 Ng5 Bd3 
                              Kh8 Ra2 a5 Nf5 Rg6 
18     +0.12   00&#58;05   26347K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 Qd8 Rd2 Bf8 Nh4 Ng5 Bd3 
                              Kh8 Ra2 a5 Qc2 Rh5 Be2 Nxh3+ gxh3 Rg5+ Bg4 Nxg4 
                              hxg4 Rxg4+ Ng2 
18     +0.28   00&#58;05   32131K Ne7 Rf1 Rb8 Qd3 Bd7 Rb2 a6 Bf2 Rg6 Rfb1 Bh6 Bh4 
                              Bg5 Bf2 Rg7 Bf3 Rb7 Rf1 Ng6 
19     +0.20   00&#58;06   36992K Ne7 Rf1 Rg6 Qd3 a6 Bh4 Bd7 Rfc1 Rb8 Rc2 Bh6 Rcb2 
                              Rb7 Bf2 Rb4 Kh1 Rb8 Bf3 Qc7 
19     +0.36   00&#58;07   40974K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 Qd8 Rd2 Bf8 Rdb2 Rg6 Nh4 
                              Rg5 Kh1 Bd7 Nf3 Rg7 Qc2 Nh5 Rb7 Ng3+ Bxg3 Rxg3 
20  <  +0.20   00&#58;08   45905K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 Qd8 Rd2 Bf8 Bd3 Rg6 Nh4 
                              Rg5 Kh1 a5 Ra2 Bg7 Nf3 Rg6 Nh4 Rg5 
20     +0.12   00&#58;12   77190K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 a6 Nh4 Qd8 Rd2 Ng5 Bd3 
                              a5 Ra2 Kh8 Qc2 Bxh3 gxh3 Rxh4 Bxh4 Nf3+ Kh1 Nxh4 
                              Qf2 Ng6 
20     +0.20   00&#58;13   81645K Nh4 Rd3 Kh8 Bf2 Qg8 Bf1 Bf8 Nd2 Bxh3 Rxh3 Nxg2 
                              Bxg2 Rxh3 Nf3 Ng4 Qe1 Nxf2 Qxf2 a6 Rb7 Qg3 Kf1 
                              Qxf2+ Kxf2 Rg3 Ne2 Rg7 Rb6 
21  >  +0.40   00&#58;14   90610K Nh4 Rd3 Kh8 Bf2 Qg8 Bf1 Bf8 Nd2 Be7 Nb5 a6 Nc7 
                              Ra7 Ne6 Ne8 
21  >  +0.61   00&#58;16  108362K Nh4 Bxh4 Rxh4 Rd3 Rb8 Qe1 Rh6 
21     +0.08   00&#58;30  213564K Nh4 Rd3 Kh8 Nd2 Qxa5 Qa4 Qxa4 Nxa4 Bd7 Ra3 Rg8 
                              Bxh4 Rxh4 Nc3 Bh6 Kf1 Ra8 Ra6 Bf8 Rba1 Kg7 Rxa7 
                              Rxa7 Rxa7 
21     +0.16   00&#58;31  218756K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 Qd8 Rd2 Bf8 Bd3 Rg6 Nh4 
                              Rg5 Kh1 Nh6 Nf3 Rg7 Ra2 Be7 Nb5 Qd7 Bh4 Nf7 
21     +0.28   00&#58;34  240175K Ne7 Qd3 a6 Rf1 Rg6 Kh1 Bd7 Bh4 Rb8 Kg1 Bh6 Bf3 
                              Bg5 Bf2 Rg7 Nxc5 dxc5 Rxb8 Qxb8 Bxc5 Bh4 
22     +0.28   00&#58;36  253465K Ne7 Qd3 a6 Rf1 Rg6 Kh1 Bd7 Bf2 Rb8 Bf3 Qc8 Be2 
                              Bh6 Rb2 Qd8 Rfb1 Rb4 Bf3 Kh8 Bh4 Bg5 Bf2 Rg7 Kg1 
                              Ng6 Kh1 
23     +0.24   00&#58;43  309918K Ne7 Qd3 a6 Rf1 Rg6 Kh1 Bd7 Bf2 Rb8 Bf3 Bf8 Rfc1 
                              Qc8 Qf1 Bh6 Rc2 Qd8 Rcb2 Rg7 Qc1 Rg6 Bh4 Kh8 Kg1 
                              Rb4 
23  >  +0.36   00&#58;50  358457K Nh8 Rd3 Nf7 h4 Kh8 h5 Qd7 Bh4 Ng4 Nb5 Rxh5 
23  >  +0.44   00&#58;53  383842K Nh8 Rf1 Nf7 Qd3 Ng5 h4 Nf7 Nb5 Ng4 Rf3 Ne3 Rxe3 
                              fxe3 Qxe3 a6 
23     +0.32   01&#58;01  441749K Nh8 Nd2 Nf7 Rd3 Qxa5 Nf3 Bf8 Nh4 Bd7 Qc2 Qd8 Rb7 
                              Ng5 Nf5 Rg6 Bh4 a5 
24  >  +0.40   01&#58;02  455223K Nh8 Nd2 Nf7 Rd3 Qxa5 Nf3 Bf8 Nh4 Bd7 Qc2 Qd8 Rb7 
                              Ng5 Nf5 Rg6 Bh4 a5 
24  >  +0.48   01&#58;04  465430K Nh8 Qd3 Nf7 Rf1 Ng5 h4 Nf7 Qd1 Qd7 Qd3 Ng4 Nd1 
                              Rg6 h5 Rg5 Bh4 
24  <  +0.24   01&#58;07  490056K Nh8 Rd3 Nf7 Nd2 Qxa5 Nf3 Bf8 Nh4 Bd7 Ra1 Qd8 Rd2 
                              a5 Rda2 a4 Qd3 Nxe4 Nxe4 Rxh4 Bxh4 Qxh4 Rb1 
24  >  +0.65   01&#58;13  538691K Nh4 Rd3 Nxg2 Kxg2 Qe8 h4 Qg6+ Kf1 Nxe4 Nxe4 Qxe4 
24  >  +0.97   01&#58;17  568470K Nh4 Rd3 Nxg2 Kxg2 Qe8 h4 Qg6+ Kf1 Nxe4 h5 Nxc3 
                              Bxc3 Qg5 Bf3 Bh3+ Ke2 e4 Bxe4 Re8 
24     +0.61   01&#58;40  762434K Nh4 Rd3 Nxg2 Kxg2 Qe8 Nd2 Qg6+ Kf2 Bxh3 Bf3 Bc8 
                              Nf1 Bg4 Rb7 Rf8 Rxa7 Rh3 Ra6 Bxf3 Rxf3 Rh1 Qd3 
                              Qg1+ Ke2 Ng4 Rxd6 Nh2 Kd1 Nxf3 Qxf3 Qxf1 Qxf1 
                              Rxf1 Rd7 
25  >  +0.93   01&#58;48  824893K Nh4 Rd3 Nxg2 Kxg2 Qe8 Nd2 Qg6+ Kf2 Bxh3 Bf3 Bc8 
                              Nf1 Bg4 Rb7 Rf8 Rxa7 Rh3 Ra6 Bxf3 Rxf3 Ng4+ Ke2 
                              Rxf3 Kxf3 Qh5 Qd3 Ne3+ Kf2 Qg5 
25     +1.09   02&#58;17    1058M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qb3 Qxa5 Qb7 Qd8 
                              Rd3 a6 Nf3 a5 Ng5 a4 Ne6 Qc8 Qxc8+ Bxc8 Rb6 Ne8 
                              Nxg7 Kxg7 Nb5 Kf7 Ra3 Rg6 
26     +0.93   02&#58;21    1088M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qb3 Qxa5 Qb7 Qd8 
                              Rd3 a6 Nf3 Qc8 Ng5 Rg6 Ne6 Bf8 h4 Qxb7 Rxb7 Bxe6 
                              dxe6 Re8 Nd5 Rxe6 Nxf6+ Rexf6 Rb6 Rg7 Rxa6 Rfg6 
27     +1.17   02&#58;37    1211M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qb3 Rg6 Rd3 Qxa5 
                              Qb7 Rd8 Rb2 Bf8 Nb5 Qa1+ Rb1 Qa2 Qxa7 Qxa7 Nxa7 
                              Ra8 Nb5 Kf7 Kf2 Ra2 Nc3 Ra5 Nb5 Ke7 Rb2 
28     +1.05   02&#58;51    1314M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qb3 Rg6 Rd3 Bf8 a6 
                              Rg7 Kf1 Qe8 Qb7 Rc8 
29     +1.01   03&#58;14    1496M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qa2 Rg6 Rd3 Bf8 a6 
                              Rg7 Kf1 Qe8 Bf3 Bc8 Qa5 Qg6 Ke2 Ne8 Nb5 Bd7 Kd1 
                              Be7 Qa3 Qf7 Kc2 Nf6 Nc3 Qg6 Rb7 
30  <  +0.89   03&#58;29    1614M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 
30     +0.97   03&#58;43    1721M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Rg6 Rd3 Bf8 Nd1 Bd7 Qa3 
                              Qe8 Nf2 Rg7 Bf3 Be7 Rb7 h5 Rdb3 a6 Qb2 Qg6 Rb8+ 
                              Rxb8 Rxb8+ Ne8 Qb7 Bh4 Qxa6 Qg3 
31  <  +0.89   03&#58;59    1850M Nh4 Bxh4 Rxh4 Nd2 Qxa5 Qa4 Qxa4 Nxa4 Bh6 Nc3 Bf8 
                              Nb5 Rb8 Rff1 a6 Na7 Rxb1 Rxb1 
31  >  +1.05   04&#58;31    2111M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Rg6 Rd3 Bf8 Nd1 Bd7 Qa3 
                              Qe7 Rbb3 Qg7 
31     +0.93   05&#58;19    2492M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qa2 Rg6 Rd3 a6 Rb6 
                              Bf8 Bd1 Bc8 Nf3 Ra7 Kf1 Kh8 Ke1 Rag7 Nh4 Rg5 Kf1 
                              Be7 Bf3 Qc7 Rd2 Rg8 Rdb2 
32  <  +0.85   05&#58;49    2742M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Rg6 Rd3 Bd7 Qa3 Rb8 
                              Rxb8 Qxb8 Nd1 Kf7 Rb3 Qd8 Nf2 Bh6 Rb7 Qg8 Bf3 
32  >  +1.01   06&#58;32    3082M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Rg6 Qc6 Bd7 Qb7 Bf8 Nb5 
                              Rg7 Nxa7 Bg4 
32     +0.97   06&#58;45    3187M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Rg6 Rd3 Bd7 Qa2 a6 Nd1 
                              Bf8 Nf2 Be7 Rdb3 Kh8 Rb7 Qf8 Ng4 Qg7 Kf1 Nxg4 
                              Bxg4 Bxg4 Rb8+ Rxb8 Rxb8+ Bf8 hxg4 Rxg4 Nf3 Kg8 
                              Qe2 Rg3 Rb6 Qa7 
33     +0.97   07&#58;40    3633M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Rg6 Rd3 Bd7 Qa2 a6 Bd1 
                              Bf8 Rb6 Rg7 Ba4 Bc8 Qb2 Raa7 Kf1 Nh5 Kg1 Rg6 
34  <  +0.89   08&#58;34    4072M Nh4 Bxh4 Rxh4 Nd2 Qxa5 Qa4 Qxa4 Nxa4 Rh6 Ra3 Rg6 
                              Rbb3 Nd7 Bg4 Kf7 Nc3 
34  >  +1.05   11&#58;22    5452M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qa2 Nh5 Bd1 Rg6 Nf1 
                              Qc8 Nb5 a6 Rf2 Ng3 
34  >  +1.13   17&#58;37    8575M Nh4 Rf2 Rg6 Kh1 Qd7 
34     +1.09   29&#58;45   14724M Nh4 Bxh4 Rxh4 Nd2 Rh6 Qa4 Bd7 Qa2 Nh5 Bd1 Rg6 Nf1 
                              Qg5 Rd3 Nf6 Qf2 Bf8 Qf3 a6 Ba4 Bc8 Bc6 Ra7 Rb8 
                              Rc7 Nh2 Qh4 Qf1 Rgg7 Nf3 
35  <  +0.97   48&#58;31   24220M Nh4 Bxh4 Rxh4 Rf2 Bd7 Bf3 Rb8 Ra2 Rh6 Nd2 Rg6 
                              Rxb8 Qxb8 Qb3 Qxb3 Nxb3 Kf7 Nb5 Bxb5 cxb5 c4 Nd2 
                              c3 
35     +0.97   59&#58;37   29801M Nh4 Bxh4 Rxh4 Rf2 Bf8 Bf3 Rh6 Ra2 Rg6 Kh1 Ba6 Nd2 
                              Rb8 Raa1 Rxb1 Qxb1 Rg7 Ra2 Qc7 Kg1 Qc8 Kh1 Qd8 
                              Kg1 Qd7 Kh1 Be7 Qb8+ Kf7 Ra1 Rg8 Qb2 Bd8 Nb5 h6 
36     +0.97 1&#58;16&#58;59   38731M Nh4 Bxh4 Rxh4 Rf2 Bf8 Bf3 Rh6 Ra2 Rg6 Kh1 Ba6 Nd2 
                              Rb8 Raa1 Rxb1 Qxb1 Rg7 Ra2 Qc7 Kg1 Qc8 Kh1 Qd8 
                              Kg1 
37  >  +1.05 1&#58;39&#58;57   50377M Nh4 Bxh4 Rxh4 Rf2 Bf8 Bf3 Rb8 Ra2 Rb7 Qd3 Rg7 Kf2 
                              Ba6 
37  <  +0.89 2&#58;01&#58;41   61632M Nh4 Bxh4 Rxh4 Rf2 Rh6 Bf3 Rg6 Kf1 Ba6 Nb5 Rb8 
                              Nxa7
Top
kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Re: Abillo position: Can any engine solve it?

Post by kgburcham »

Hiarcs and Houdini have trouble with my system.
Hiarcs allows only 2048 total hash. This gives me 1024 per socket, which fills fast. Other programs allow 4096 which is 2048 per socket and seems better. Verified in task manager.

[D] r1bq2k1/p5bp/3p1nnr/P1pPp3/2P1Pp2/1NN2R1P/4B1P1/1R1QB1K1 b - - bm Nh8
CPU0: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU1: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU2: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU3: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU4: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU5: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU6: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU7: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU8: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU9: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU10: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz
CPU11: GenuineIntel Intel64 Family 6 Model 44 Stepping 0 4439 MHz

HIARCS 13.1 MP (4096 MB)

13/33 0:01 -0.21 1...Rb8 2.Rf2 Bd7 3.Bf3 Nh4 4.Rfb2 Nxf3+ 5.Qxf3 a6 6.Ne2 Rg6 (5.192.511) 4890
14/34 0:02 -0.25 1...Rb8 2.Bf2 Bd7 3.Qc2 Ne8 (11.251.311) 5339
15/34 0:02 -0.26 1...Rb8 2.Bf2 Bd7 3.Qf1 Ne7 4.Qe1 (15.030.666) 5334
16/34 0:05 -0.02 1...Rb8 2.Nd2 Rxb1 3.Qxb1 Qxa5 4.Nb5 Qb6 5.Rb3 Bd7 6.Nd4 Qa6 7.Nf5 Bxf5 8.exf5 (28.352.033) 5589
16/34 0:05 -0.03 1...Ne8 (32.408.273) 5656
16/34 0:07 -0.03 1...Ne8 2.Rd3 Qg5 3.Nd2 Bxh3 4.Rxh3 Rxh3 5.Nf3 Rxf3 6.Bxf3 Qd8 7.Qa4 (40.282.728) 5704
16/34 0:08 -0.03 1...Nh8 (47.833.140) 5745
16/34 0:09 -0.09 1...Nh8 2.Qd3 Bd7 3.Rf1 a6 4.Bf2 Rg6 5.h4 Rb8 6.h5 Rh6 (55.286.409) 5792
16/34 0:09 -0.10 1...a6 (56.463.401) 5780
16/34 0:11 -0.10 1...a6 2.Nd2 Qxa5 3.Na4 (68.636.598) 5852
16/34 0:12 -0.10 1...Ne7 (71.598.992) 5859
16/34 0:13 -0.10 1...Ne7 2.Qd3 Rb8 3.Rf1 Bd7 4.Kh2 (76.268.515) 5834
17/34 0:14 -0.10 1...Ne7 2.Qd3 Bd7 3.Rf1 a6 4.Bf2 Rg6 5.Kh2 Ra7 6.Rg1 Rb7 7.Bh4 Qc8 8.Bf2 (85.245.387) 5844
17/34 0:14 -0.11 1...Nh8 (87.530.028) 5844
17/34 0:15 -0.12 1...Nh8 2.Qd3 Bd7 3.Rf1 Nf7 4.Bf2 Rb8 5.Rb2 Rg6 6.Rfb1 Rb4 7.Na2 (92.403.045) 5868
18/34 0:21 -0.17 1...Nh8 2.Rd3 Bd7 3.h4 a6 4.h5 Nf7 5.Bh4 Qc8 (128.659.223) 5936
19/40 0:31 -0.17 1...Nh8 2.Rd3 Bd7 3.Nd2 Nf7 4.Qb3 Qxa5 5.Qb7 Qd8 6.Nb5 Rb8 7.Qxa7 Bf8 8.Rdb3 Ng5 9.Bd3 Rg6 10.Kh2 f3 11.Nxf3 Nxf3+ 12.gxf3 Ra8 13.Qc7 Qc8 (189.990.450) 6019
20/44 0:53 -0.19 1...Nh8 2.Qd3 Nf7 3.Rf1 Bd7 4.Bf2 Rb8 5.Rb2 a6 6.Rd1 (328.203.985) 6151
21/44 1:13 -0.19 1...Nh8 2.Qd3 Nf7 3.Rf1 Bd7 4.Bf2 Rb8 5.Rb2 a6 6.Rd1 Rb4 7.Rbb1 Rg6 8.Kh1 Rb8 9.Rf1 Rh6 10.Kh2 Rb4 11.Kh1 Rb8 (452.367.890) 6176
22/44 1:53 -0.19 1...Nh8 2.Qd3 Nf7 3.Rf1 Bd7 4.Bf2 Rb8 5.Rfd1 Rg6 (705.285.202) 6218
23/50 4:09 -0.25 1...Nh8 2.Rf1 Bd7 (1.585.741.195) 6354
24/54 14:33 -0.26 1...Nh8 2.Rf1 Nf7 3.Qd3 Bd7 4.Ra1 Rb8 5.Nd2 Qc8 6.Ra2 Bh8 7.Ra1 Rb2 8.Kh2 Bg7 9.Nd1 Rb4 10.Nc3 Rb8 11.Ra3 a6 (5.653.306.696) 6475
best move: Ng6-h8 time: 14:40.985 min n/s: 6.474.983 nodes: 5.704.452.929

Zappa Mexico II (4096 MB)

11/33 0:00 +0.04 1...Rb8 2.Nd2 Rb4 3.Nb5 a6 4.Na7 Bd7 5.Rfb3 Rxb3 6.Qxb3 (2.775.709) 9877
11/33 0:00 0.00 1...Nh4 2.Rd3 Rb8 3.Qc2 a6 4.Rd2 Bd7 5.Bf2 (3.768.548) 10049
11/33 0:00 0.00 1...Nh4 2.Rd3 Rb8 3.Qc2 a6 4.Rd2 Bd7 5.Bf2 (3.972.493) 10185
12/33 0:00 +0.12 1...Nh4 2.Rd3 a6 3.Qc1 Rb8 4.Nd2 Bd7 5.Qa3 Qc7 6.Rxb8+ Qxb8 (6.230.827) 10231
12/38 0:00 +0.11 1...Rb8 2.Nd2 Rb4 3.Nb5 a6 4.Na7 Bd7 5.Rfb3 Qc7 (6.737.963) 10271
12/38 0:00 +0.11 1...Rb8 2.Nd2 Rb4 3.Nb5 a6 4.Na7 Bd7 5.Rfb3 Qc7 (7.866.667) 10283
13/39 0:01 -0.04 1...Rb8 2.Nd2 Rb4 3.Bf2 Nh4 4.Rd3 Rxb1 5.Qxb1 Qxa5 6.Bxh4 Rxh4 (13.754.453) 11003
13/39 0:01 -0.04 1...Rb8 2.Nd2 Rb4 3.Bf2 Nh4 4.Rd3 Rxb1 5.Qxb1 Qxa5 6.Bxh4 Rxh4 (15.200.779) 10935
14/47 0:01 -0.02 1...Rb8 2.Nd2 Rb4 3.Bf2 Nh4 4.Rd3 a6 5.Rxb4 cxb4 6.Na2 Qxa5 (20.636.047) 11388
14/47 0:02 -0.02 1...Rb8 2.Nd2 Rb4 3.Bf2 Nh4 4.Rd3 a6 5.Rxb4 cxb4 6.Na2 Qxa5 (24.341.291) 11454
15/47 0:02 +0.25 1...Rb8 2.Nd2 Rb4 3.Bf2 Nh4 4.Rd3 Bf8 5.Qe1 Rxb1 6.Ncxb1 Ng6 7.Ra3 (31.571.946) 11749
15/47 0:05 +0.07 1...Ne7 2.Qc2 Rb8 3.Qa2 a6 4.Nd2 Rxb1 5.Ncxb1 Qe8 6.Qb2 Kh8 7.Nc3 (57.465.392) 11283
15/49 0:08 +0.03 1...Nh8 2.Qc2 Nf7 3.Rf1 Rb8 4.Bf2 Rg6 5.Kh1 a6 6.Qa2 Qc7 7.Nd2 (105.971.165) 12155
15/49 0:08 +0.03 1...Nh8 2.Qc2 Nf7 3.Rf1 Rb8 4.Bf2 Rg6 5.Kh1 a6 6.Qa2 Qc7 7.Nd2 (106.686.693) 12129
16/49 0:11 0.00 1...Nh8 2.Qc2 Nf7 3.Rf1 Rb8 4.Bf2 a6 5.Rfc1 Qc7 6.Nd2 Rxb1 7.Qxb1 Qxa5 (139.114.161) 12453
16/51 0:12 0.00 1...Nh8 2.Qc2 Nf7 3.Rf1 Rb8 4.Bf2 a6 5.Rfc1 Qc7 6.Nd2 Rxb1 7.Qxb1 Qxa5 (152.937.697) 12469
17/53 0:16 0.00 1...Nh8 2.Qc2 Nf7 3.Rd3 Rb8 4.Nd2 Bd7 5.Rxb8 Qxb8 6.Qa2 Rg6 7.Nf3 Qc7 8.Nh4 (206.156.802) 12686
17/53 0:18 0.00 1...Nh8 2.Qc2 Nf7 3.Rd3 Rb8 4.Nd2 Bd7 5.Rxb8 Qxb8 6.Qa2 Rg6 7.Nf3 Qc7 8.Nh4 (238.443.137) 12759
18/55 0:25 0.00 1...Nh8 2.Qc2 Nf7 3.Rd3 Bd7 4.Rdd1 a6 5.Bf2 Qc7 6.Kf1 Nh5 7.Qd3 Nf6 8.Qc2 (328.981.132) 12941
18/55 0:29 0.00 1...Nh8 2.Qc2 Nf7 3.Rd3 Bd7 4.Rdd1 a6 5.Bf2 Qc7 6.Kf1 Nh5 7.Qd3 Nf6 8.Qc2 (385.249.570) 12963
19/57 1:01 +0.02 1...Nh8 2.Nd2 Qxa5 3.Na4 Bd7 4.Ra3 Rg6 5.Qc2 Nf7 6.Qa2 Qd8 7.Kf1 Rb8 8.Rxb8 Qxb8 9.Nc3 (809.311.589) 13193
19/57 1:18 +0.02 1...Nh8 2.Nd2 Qxa5 3.Na4 Bd7 4.Ra3 Rg6 5.Qc2 Nf7 6.Qa2 Qd8 7.Kf1 Rb8 8.Rxb8 Qxb8 9.Nc3 (1.034.485.479) 13196
20/57 1:42 +0.08 1...Nh8 2.Nd2 Qxa5 3.Na4 Qc7 4.Rfb3 Nf7 5.Qc2 Rg6 6.Qa2 Qd8 7.Kf1 Bh6 8.Bh4 Bg5 9.Bf2 Bd7 (1.350.878.836) 13211
20/59 3:58 +0.08 1...Nh8 2.Nd2 Qxa5 3.Na4 Qc7 4.Rfb3 Nf7 5.Qc2 Rg6 6.Qa2 Qd8 7.Kf1 Bh6 8.Bh4 Bg5 9.Bf2 Bd7 (3.138.560.839) 13174
21/61 4:49 +0.04 1...Nh8 2.Nd2 Qxa5 3.Na4 Qc7 4.Rfb3 Nf7 5.Qc2 Rg6 6.Kf1 Bh6 7.Nc3 Qd7 8.Bf2 Ng5 9.Bh4 Kh8 10.R3b2 (3.812.519.601) 13148
21/61 5:54 +0.04 1...Nh8 2.Nd2 Qxa5 3.Na4 Qc7 4.Rfb3 Nf7 5.Qc2 Rg6 6.Kf1 Bh6 7.Nc3 Qd7 8.Bf2 Ng5 9.Bh4 Kh8 10.R3b2 (4.641.269.731) 13105
best move: Ng6-h8 time: 7:14.453 min n/s: 13.384.407 nodes: 5.650.200.118

Houdini DEVEL x64 POPCNT 12_CPU (4096 MB)

15/43 0:00 -0.10++ 1...Nh4 2.Rd3 Rb8 3.Qc2 Ba6 4.Nd2 Rb4 5.Qa2 Qb8 6.Bd1 Qb7 7.Bf2 Rxb1 8.Qxb1 Qxb1 9.Ncxb1 (3.288.859) 6461
15/43 0:01 +0.05 1...Nh4 2.Rd3 Rb8 3.Nd2 Bd7 4.Nb5 Bxb5 5.cxb5 Qxa5 6.Ra1 Qxb5 7.Rb3 Qe8 8.Rxa7 Rb4 9.Rxb4 cxb4 10.Qb3 Qb8 11.Re7 Qb6+ 12.Bf2 (7.622.098) 6674
15/43 0:01 0.00 1...Rb8 2.Nd2 Rxb1 3.Qxb1 Ne7 4.Nb5 Qd7 5.Rd3 a6 6.Nc3 Rg6 7.Qb6 Bb7 8.Bd1 Nc8 9.Qb2 Ne7 10.Nf3 (7.737.655) 6641
16/43 0:01 0.00 1...Rb8 2.Nd2 Rxb1 3.Qxb1 Ne7 4.Nb5 Qd7 5.Rd3 Rg6 6.Bf2 a6 7.Nc3 Rg5 8.Nf3 Rg6 9.Kh1 Qc7 10.Qb6 (8.042.385) 6624
17/43 0:01 -0.05++ 1...Rb8 2.Nd2 Rxb1 3.Qxb1 Ne7 4.Nb5 Qd7 5.Rd3 Rg6 6.Bf2 Rh6 7.Rb3 a6 8.Nc3 Qd8 9.Rb6 Nd7 10.Rb2 Qxa5 (10.164.026) 6686
17/43 0:01 -0.05 1...Rb8 2.Nd2 Rxb1 3.Qxb1 Qxa5 4.Nb5 Qb6 5.Rb3 Ne7 6.Nc3 Qa6 7.Nb5 Rg6 8.Nf3 Bf8 9.Kh1 Qb6 10.Qc2 a6 11.Nbd4 (10.566.347) 6691
18/43 0:01 -0.02 1...Rb8 2.Nd2 Rxb1 3.Qxb1 Qxa5 4.Nb5 Qb6 5.Rb3 Ne7 6.Nc3 Qd8 7.Nf3 Bh8 8.Ng5 Rg6 9.Bh4 a5 10.Ne6 Bxe6 11.dxe6 Nc6 12.Rb7 Qe8 13.Qb6 Nd4 14.Qxd6 Nxe2+ (12.957.976) 6713
18/43 0:03 -0.12++ 1...Bf8 2.Nd2 Qxa5 3.Nb5 a6 4.Ra3 Qd8 5.Nc3 Ra7 6.Nf3 Rg7 7.Rb8 Ne7 8.Bh4 Qc7 9.Rab3 Bxh3 10.Bg5 Rhg6 11.gxh3 Rxg5+ 12.Nxg5 Rxg5+ 13.Bg4 Ng6 14.R3b7 (21.162.310) 6756
18/45 0:04 -0.14 1...Bf8 2.Nd2 Qxa5 3.Rd3 Qc7 4.Qa4 a6 5.Nf3 Rb8 6.Rxb8 Qxb8 7.Qa5 Ne7 8.Rd1 Qb2 9.Ng5 Rg6 10.Rb1 Qc2 11.Bd1 Qd3 (30.145.311) 6840
19/49 0:05 -0.08 1...Bf8 2.Nd2 Qxa5 3.Rd3 Qc7 4.Qa4 a6 5.Nf3 Rb8 6.Rxb8 Qxb8 7.Qa5 Ne7 8.Rd1 Qb2 9.Ng5 Rg6 10.Rb1 Qc2 11.Bd1 Qd3 12.Be2 Qe3+ 13.Bf2 Qd2 (37.995.804) 6810
20/49 0:06 -0.03 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Bf1 Rb8 5.Rxb8 Qxb8 6.Bf2 Ng6 7.Be2 Qc7 8.Qa1 Qg7 9.Qe1 a6 10.Bf3 Ne7 11.h4 Rg6 12.h5 (44.791.756) 6811
21/49 0:10 -0.05 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Kh1 Qg7 5.Bxh4 Rxh4 6.Qa4 Bd7 7.Qb3 Be8 8.Qb7 Rd8 9.Qxg7+ Kxg7 10.Nf3 Rh5 11.Kg1 Rd7 12.Rd2 Bg6 13.Bd3 (72.992.895) 6812
22/49 0:21 -0.05 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Kh1 Qg7 5.Bxh4 Rxh4 6.Qa4 Bd7 7.Qb3 Be8 8.Qb7 Rd8 9.Qxg7+ Kxg7 10.Nf3 Rh5 11.Kg1 Rd7 12.Rd2 Bg6 13.Bd3 (149.543.422) 6860
23/53 0:35 -0.11++ 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Kh1 Qg7 5.Bxh4 Rxh4 6.Qa4 Bd7 7.Qb3 Be8 8.Qb7 Rd8 9.Qxg7+ Kxg7 10.Nf3 Rh5 11.Kg1 Rd7 12.Rd2 Bg6 13.Bd3 Be7 14.a6 Bd8 (244.719.436) 6835
23/55 0:43 -0.05 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Bxh4 Rxh4 5.Qa4 Qg7 6.Kh1 Bd7 7.Qa2 a6 8.Bd1 Rh6 9.Ba4 Bc8 10.Bc6 Ra7 11.Qc2 Qg6 12.Rb8 Rc7 13.Qd1 (300.061.835) 6841
24/55 1:12 -0.06 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Bxh4 Rxh4 5.Qa4 Qg7 6.Kh1 Bd7 7.Qa2 a6 8.Bd1 Rh6 9.Ba4 Bc8 10.Bc6 Ra7 11.Rb8 Rc7 12.Qb2 Qg6 13.Qa1 Kg7 14.Qd1 (497.913.362) 6834
25/69 2:29 -0.07 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Bf1 Qxa5 5.Bf2 Qc7 6.Qe1 Ng6 7.Nb5 Qg7 8.Ra3 a6 9.Nc3 Nh8 10.h4 Ng6 11.Na4 Qc7 12.Rab3 Ng4 13.Nf3 Rh5 (1.014.029.568) 6780
26/69 4:06 -0.08 1...Bf8 2.Nd2 Nh4 3.Rd3 Qc7 4.Bf1 Qxa5 5.Bf2 Qc7 6.Qe1 Ng6 7.Nb5 Qg7 8.Ra3 Nh8 9.Kh1 Ng4 10.Bg1 a6 11.Nc3 Ng6 12.Nf3 Be7 13.Bd3 Nh4 14.Qe2 Nxf3 (1.672.033.627) 6773
27/69 11:37 -0.08 1...Bf8 2.Rd3 Nh4 3.Nd2 Qc7 4.Bf1 Qxa5 5.Bf2 Qd8 6.Be2 Bd7 7.Ra1 a6 8.Qe1 Ng6 9.Ra3 Bc8 10.Rb3 Ra7 11.Nf3 Rb7 12.Rxb7 Bxb7 13.Ng5 Qe7 14.Ne6 Bc8 (4.731.971.682) 6780
28/69 19:53 -0.12 1...Bf8 2.Rd3 Nh4 3.Nd2 Qxa5 4.Bf2 Qc7 5.Qe1 Ng6 6.Nf3 Rb8 7.Rxb8 Qxb8 8.Rd1 Bd7 9.Ra1 Ne7 10.Qd2 Rg6 11.Kh1 Qc8 12.Bf1 Qc7 13.Qa2 Nc8 14.Bd3 Nh5 (8.113.572.254) 6800
29/70 34:01 -0.12 1...Bf8 2.Rd3 Nh4 3.Nd2 Qxa5 4.Bf2 Qc7 5.Qe1 Ng6 6.Nf3 Rb8 7.Rxb8 Qxb8 8.Rd1 Qb7 9.Ra1 Qe7 10.Ra2 a6 11.Bd1 Qb7 12.Ng5 Be7 13.Be2 Nf8 (13.896.938.833) 6805
29/70 39:07 -0.12 1...Bf8 2.Rd3 Nh4 3.Nd2 Qxa5 4.Bf2 Qc7 5.Qe1 Ng6 6.Nf3 Rb8 7.Rxb8 Qxb8 8.Rd1 Qb7 9.Ra1 Qe7 10.Ra2 a6 11.Bd1 Qb7 12.Ng5 Be7 13.Be2 Nf8 (16.045.455.653) 6833
best move: Bg7-f8 time: 39:08.547 min n/s: 6.833.000 CPU 99.2% n/s(1CPU): 6.888.104 nodes: 16.045.455.653

Deep Shredder 12 x64 (4096 MB)

13/32 0:00 +0.05 1...Nh4 2.Rd3 Rb8 3.Kh2 Kh8 4.Nd2 Rxb1 5.Qxb1 Ne8 6.Qb5 Nc7 7.Bxh4 Rxh4 8.Qb8 Na6 9.Qxa7 Qxa5 10.Qf7 (6.609.529) 9620
14/38 0:02 +0.08 1...Nh4 2.Rd3 a6 3.Nd2 Qxa5 4.Na4 Nd7 (25.104.056) 9342
15/38 0:03 +0.08 1...Nh4 2.Rd3 a6 3.Nd2 Qxa5 4.Na4 Qc7 5.Rdb3 Ra7 6.Nb6 Bb7 7.Bg4 Kh8 8.Be6 Ng6 9.Na4 Nf8 10.Bf5 Bc8 11.Kh2 Bxf5 12.exf5 (29.202.568) 9392
16/40 0:03 +0.08 1...Nh4 2.Rd3 a6 3.Nd2 Qxa5 4.Na4 Qc7 5.Rdb3 Ra7 6.Nb6 Bb7 7.Bg4 Kh8 8.Be6 Ng6 9.Na4 Nf8 10.Bf5 Bc8 (36.196.721) 9495
16/40 0:06 +0.01 1...Kh8 2.Bf1 Nh4 3.Rd3 Rb8 4.Rd2 a6 5.Rdb2 Nh5 6.Na4 Ng3 7.Qd3 Qg5 8.Nb6 Nxf1 9.Bxh4 Qxh4 10.Kxf1 Rg6 11.Nxc8 Rxc8 (63.804.340) 9518
17/43 0:14 +0.02 1...Kh8 2.Rd3 Rb8 3.Rd2 Nh4 4.Bf1 a6 5.Rdb2 Nh5 6.Nd2 Rxb2 7.Rxb2 Ng3 8.Rb6 Nxf1 9.Kxf1 Rg6 10.Bxh4 Qxh4 11.Rb8 Qd8 12.Nf3 Qc7 13.Qb1 (138.930.958) 9399
18/42 0:16 0.00 1...Kh8 2.Rd3 Rb8 3.Rd2 Nh4 4.Bf1 a6 5.Rdb2 Nh5 6.Nd2 Rxb2 7.Rxb2 Ng3 8.Rb6 Rg6 9.Nf3 Nxf3+ 10.Qxf3 Nxf1 11.Kxf1 Bf6 12.Qh5 Rg7 13.Qh6 Rg6 14.Qh5 Rg7 (152.957.687) 9422
19/43 0:28 0.00 1...Kh8 2.Rd3 Rb8 3.Rd2 Nh4 4.Bf1 a6 5.Rdb2 Rb4 6.Na2 Rb7 7.Nc3 Rb8 (271.973.549) 9459
20/53 1:49 -0.07 1...Kh8 2.Rd3 Nh4 3.Bf2 (1.024.306.216) 9323
21/46 2:18 -0.09 1...Kh8 2.Rd3 Nh4 3.Bf2 Bf8 4.Qe1 Ne8 5.Kh1 Be7 6.Nb5 Bf6 7.a6 Qd7 8.Qa5 Qg7 9.Rg1 Rb8 10.Qa4 Bd7 (1.306.218.046) 9464
22/52 3:22 -0.12 1...Kh8 2.Rd3 Nh4 3.Bf2 Bf8 4.Qe1 Ne8 5.Kh1 Be7 6.Nb5 Bf6 7.Qd1 a6 8.Nc3 Bd7 9.Nd2 (1.952.306.489) 9627
shredder still running
Top
Taner Altinsoy
Posts: 147
Joined: Fri Dec 18, 2009 3:56 pm
Location: Istanbul

Re: Abillo position: Can any engine solve it?

Post by Taner Altinsoy »

After hours of searching I got it haha! On my system Houdini, IvanhoeT55, Deep Rybka4 and some others cannot find it with at least 30 mins of analysis.

1800MB Hash single cpu Phenomx4 9850

Analysis by Komodo64 1.2 JA:

1...Rb8 2.Rf1 Kh8 3.Qd3 Bd7 4.Bf2
= (0.07) Depth: 6 00:00:00 7kN
1...Rb8 2.Rf1 Kh8 3.Qd3 Bd7 4.Bf2
= (0.07) Depth: 6 00:00:00 9kN
1...Rb8 2.Qc2 Kh8 3.Bf2 Ba6 4.Nb5 Nh4
= (0.07) Depth: 7 00:00:00 23kN
1...Rb8 2.Qc2 Kh8 3.Bf2 Ba6 4.Nb5 Nh4
= (0.07) Depth: 7 00:00:00 24kN
1...Rb8 2.Qc2 Kh8 3.Bf2 a6 4.Rd3 Bd7 5.Rdd1 Qe7
= (0.03) Depth: 8 00:00:00 42kN
1...Rb8 2.Qc2 Kh8 3.Bf2 a6 4.Rd3 Bd7 5.Rdd1 Qe7
= (0.03) Depth: 8 00:00:00 46kN
1...Rb8 2.Qc2 Kh8 3.Rd3 Bb7 4.Rdd1 a6 5.Bf2 Qc7 6.Rf1
= (-0.07) Depth: 9 00:00:00 140kN
1...Rb8 2.Qc2 Kh8 3.Rd3 Bb7 4.Rdd1 a6 5.Bf2 Qc7 6.Rf1
= (-0.07) Depth: 9 00:00:00 141kN
1...Rb8 2.Qc2 Kh8 3.Rd3 Bb7 4.Rdd1 a6 5.Bf2 Qc7 6.Rf1 Nh4 7.Rfd1 Ng6
= (0.00) Depth: 10 00:00:00 194kN
1...Rb8 2.Qc2 Kh8 3.Rd3 Bb7 4.Rdd1 a6 5.Bf2 Qc7 6.Rf1 Nh4 7.Rfd1 Ng6
= (0.00) Depth: 10 00:00:00 223kN
1...Rb8 2.Bf2 Ba6 3.Qe1 Kh8 4.Bd3 Bb7 5.Nb5 a6 6.Nc3 Qc7 7.Rb2 Rh5
= (-0.11) Depth: 11 00:00:00 645kN
1...Rb8 2.Bf2 Ba6 3.Qe1 Kh8 4.Bd3 Bb7 5.Nb5 a6 6.Nc3 Qc7 7.Rb2 Rh5
= (-0.11) Depth: 11 00:00:00 666kN
1...Rb8 2.Bf2 Ba6 3.Qe1 Kh8 4.Bd3 Bb7 5.Be2 a6 6.Rd3 Ne7 7.Rdd1 Rg6 8.Qd2 Qc7
= (-0.12) Depth: 12 00:00:01 835kN
1...Rb8 2.Bf2 Ba6 3.Qe1 Kh8 4.Bd3 Bb7 5.Be2 a6 6.Rd3 Ne7 7.Rdd1 Rg6 8.Qd2 Qc7
= (-0.12) Depth: 12 00:00:01 860kN
1...Rb8 2.Bf2 Ba6 3.Qe1 Kh8 4.Bd3 Bb7 5.Be2 a6 6.Rd3 Ne7 7.Rdd1 Rg6 8.Qd2 Qc7 9.Rf1 Ba8 10.Qd3 Rg5 11.g3
= (-0.08) Depth: 13 00:00:01 1129kN
1...Rb8 2.Bf2 Ba6 3.Qe1 Kh8 4.Bd3 Bb7 5.Be2 a6 6.Rd3 Ne7 7.Rdd1 Rg6 8.Qd2 Qc7 9.Rf1 Ba8 10.Qd3 Rg5 11.g3
= (-0.08) Depth: 13 00:00:01 1166kN
1...Rb8 2.Bf2 Bd7 3.Rd3 Kh8 4.Rd2 Ne7 5.Rdb2 Rg6 6.Kh1 a6 7.Bd3 Qc7 8.Qf3 Rb4 9.Kg1 Rb7 10.Bh4 Rb8
= (-0.10) Depth: 14 00:00:03 2901kN
1...Rb8 2.Bf2 Bd7 3.Rd3 Kh8 4.Rd2 Ne7 5.Rdb2 Rg6 6.Kh1 a6 7.Bd3 Qc7 8.Qf3 Rb4 9.Kg1 Rb7 10.Bh4 Rb8
= (-0.10) Depth: 14 00:00:03 2983kN
1...Rb8 2.Nd2 Rxb1 3.Qxb1 Ne7 4.Nb5 Qd7 5.Bf2 Rg6 6.Bd1 Kh8 7.Ba4 Neg8 8.Bh4 Qd8 9.Qb2 Bd7
= (0.14) Depth: 15 00:00:11 8716kN
1...Kh8 2.Rd3 Bd7 3.Qc2 a6 4.Nd2 Qxa5 5.Nf3 Rh5 6.Nd2 Rh6
= (0.00) Depth: 15 00:00:13 10846kN
1...Kh8 2.Rd3 Bd7 3.Qc2 a6 4.Nd2 Qxa5 5.Nf3 Rh5 6.Nd2 Rh6
= (0.00) Depth: 15 00:00:16 12775kN
1...Kh8 2.Rd3 Bd7 3.Qc2 a6 4.Nd2 Qxa5 5.Nf3 Rh5 6.Nd2 Rh6
= (0.00) Depth: 16 00:00:17 13807kN
1...Kh8 2.Rd3 Bd7 3.Qc2 a6 4.Nd2 Qxa5 5.Nf3 Rh5 6.Nd2 Rh6
= (0.00) Depth: 16 00:00:18 14906kN
1...Kh8 2.Rd3 Rb8 3.Nd2 Rxb1 4.Qxb1 Qxa5 5.Nf3 Qb6 6.Qxb6 axb6 7.Ng5 Kg8 8.Nb5 Bf8 9.Rb3 Nh8 10.Nc3 Nd7 11.Ra3 Nf7 12.Ra8 Bb7
= (0.02) Depth: 17 00:00:38 29355kN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 17 00:00:55 42951kN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 17 00:00:55 42981kN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 18 00:00:58 45385kN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 18 00:01:30 71066kN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 19 00:01:35 74632kN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 19 00:01:43 81154kN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 20 00:02:10 102mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 20 00:03:13 151mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 21 00:03:58 187mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 21 00:04:19 204mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 22 00:04:45 224mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 22 00:05:29 259mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 23 00:06:07 288mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 23 00:07:17 343mN
1...Ne7 2.Nd2 Qxa5 3.Rd3 Rg6 4.Nf3 Qd8 5.Nh4 Rg5 6.Nf3 Rg6
= (0.00) Depth: 24 00:08:10 385mN
1...Nh8 2.Rd3 Nf7 3.Nd2 Qxa5 4.Nf3 Qd8 5.Rd2 Kh8 6.Rdb2 Bf8 7.Nh4 a5 8.Bd3 Ng5 9.Ra2 Qc7 10.Rba1 Bd7 11.Bc2 Bg7 12.Qd3 Qd8 13.Bd1 Ra6 14.Nf5 Rg6 15.Nxg7 Rxg7 16.h4 Nf7 17.Nb5 Qg8 18.Bc3
= (-0.12) Depth: 24 00:23:51 1080mN
1...Nh8 2.Rd3 Nf7 3.Nd2 Qxa5 4.Nf3 Qd8 5.Rd2 Kh8 6.Rdb2 Bf8 7.Nh4 a5 8.Bd3 Ng5 9.Ra2 Qc7 10.Rba1 Bd7 11.Bc2 Bg7 12.Qd3 Qd8 13.Bd1 Ra6 14.Nf5 Rg6 15.Nxg7 Rxg7 16.h4 Nf7 17.Nb5 Qg8 18.Bc3
= (-0.12) Depth: 24 00:23:52 1081mN

(, Microsoft 17.11.2010)
Top
Taner Altinsoy
Posts: 147
Joined: Fri Dec 18, 2009 3:56 pm
Location: Istanbul

Re: Abillo position: Can any engine solve it?

Post by Taner Altinsoy »

The problem is computers suggest white to play Nd2 after black's Nf7 whereas white played Nf3 in actual game which made the Ng5 move more rewarding than it actually is. According to the engines Nd2 leads to a draw or at least equal play.

Taner
Top
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Abillo position: Can any engine solve it?

Post by zullil »

Now finished depth 39:

Code: Select all

39     +0.97 7&#58;23&#58;54  227199M Nh4 Bxh4 Rxh4 Rf2 Rh6 Bf3 Rg6 Kf1 Ba6 Nb5 Bh6 
                              Rfb2 Kh8 Nc1 Qe7 Nd3 Rag8 Qd2 Rg3 Qe2 Bg5 Ke1 Bh4 
                              Kd1 R3g7
Top
Dann Corbit
Posts: 12540
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Abillo position: Can any engine solve it?

Post by Dann Corbit »

zullil wrote:Now finished depth 39:

Code: Select all

39     +0.97 7&#58;23&#58;54  227199M Nh4 Bxh4 Rxh4 Rf2 Rh6 Bf3 Rg6 Kf1 Ba6 Nb5 Bh6 
                              Rfb2 Kh8 Nc1 Qe7 Nd3 Rag8 Qd2 Rg3 Qe2 Bg5 Ke1 Bh4 
                              Kd1 R3g7
That is by far the biggest score I have seen for this position (most are less than 20 centipawns even after a very long search).
Top
zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Abillo position: Can any engine solve it?

Post by zullil »

Code: Select all

40     +1.05 8&#58;29&#58;06  258862M Nh4 Bxh4 Rxh4 Rf2 Rh6 Bf3 Rg6 Kf1 Ba6 Nb5 Bh6 
                              Rfb2 Qe7 Nd2 Kh8 Nc3 Rgg8 Qe1 Rae8 Rb3 Rd8
Top
User avatar
michiguel
Posts: 6401
Joined: Thu Mar 09, 2006 8:30 pm
Location: Chicago, Illinois, USA

Re: Abillo position: Can any engine solve it?

Post by michiguel »

Dann Corbit wrote:Fig. 6.1: Korchnoi vs. Fischer: Black to play

[d]r1bq2k1/p5bp/3p1nnr/P1pPp3/2P1Pp2/1NN2R1P/4B1P1/1R1QB1K1 b - - bm Nh8;

1. ... Nh8

Reviewer Notes:
It's quite remarkable that Fischer was able to produce such a move in a few seconds. Modern chess programs, however, not only do not select that move in a few seconds, but neither do they when given many hours, preferring other alternatives.
I left Gaviota to calculate this when I left home. It chooses Nh8 after 2 minutes and sticked to it. The score is not great though.

Miguel

Code: Select all

+-----------------+
| r . b q . . k n |
| p . . . . . b p |
| . . . p . n . r |
| P . p P p . . . |    Castling&#58; 
| . . P . P p . . |    ep&#58; -
| . N N . . R . P |
| . . . . B . P . |
| . R . Q B . K . | &#91;White&#93;
+-----------------+

undo
analyze
iterative deepening --> start, thread=0
set timer to infinite
        89   1&#58;      0.0    -0.02  Rb8
       396   2&#58;      0.0    -0.00  Rb8 2.Qc2
      1115   3&#58;      0.0    -0.06  Rb8 2.Qc2 Rb4
      3751   4&#58;      0.0    -0.11  Rb8 2.Qc2 Nh4 3.Rf1 Nxg2 4.Kxg2 Bxh3+
                                   5.Kg1 Bxf1 6.Bxf1
     13356   5&#58;      0.1    -0.11  Rb8 2.Qc2 Nh4 3.Rf1 Nxg2 4.Kxg2 Bxh3+
                                   5.Kg1 Bxf1 6.Bxf1
     41721   6&#58;      0.2    -0.11  Rb8 2.Qc2 Nh4 3.Rf1 Nxg2 4.Kxg2 Bxh3+
                                   5.Kg1 Bxf1 6.Bxf1
    142933   7&#58;      0.5    -0.16  Rb8 2.Qc2 Nh4 3.Rd3 Ba6 4.Rdd1 Rb4
    209220   8       0.7    -0.11  Rb8 2.Qc2 Nh4 3.Rd3 Rb4 4.Na2 Rb8
                                   5.Rdd1
    274623   8&#58;      1.0    -0.11  Rb8 2.Qc2 Nh4 3.Rd3 Rb4 4.Na2 Rb8
                                   5.Rdd1
    385134   9       1.3    -0.13  Rb8 2.Qc2 Nh4 3.Rd3 Rb4 4.Nb5 Nxe4
                                   5.Rdd1 f3 6.Qxe4 fxe2 7.Qxe2
    677020   9&#58;      2.1    -0.13  Rb8 2.Qc2 Nh4 3.Rd3 Rb4 4.Nb5 Nxe4
                                   5.Rdd1 f3 6.Qxe4 fxe2 7.Qxe2
   1805176  10       5.4    -0.09  Rb8 2.Rf2 Nh4 3.Bd3 f3 4.g4 Rg6 5.Rfb2
                                   Nxg4 6.hxg4 Rxg4+ 7.Kh1
   2409921  10&#58;      6.9    -0.09  Rb8 2.Rf2 Nh4 3.Bd3 f3 4.g4 Rg6 5.Rfb2
                                   Nxg4 6.hxg4 Rxg4+ 7.Kh1
   5716977  11      15.6    -0.14  Rb8 2.Nd2 Rxb1 3.Qxb1 Nh4 4.Rd3 Qxa5
                                   5.Qb8 Qa6 6.Nb5 Nd7
  14510017  11&#58;     39.3    -0.14  Rb8 2.Nd2 Rxb1 3.Qxb1 Nh4 4.Rd3 Qxa5
                                   5.Qb8 Qa6 6.Nb5 Nd7
  18253273  12      49.1    -0.26  Rb8 2.Nd2 Rxb1 3.Qxb1 Nh4 4.Rd3 Qxa5
                                   5.Qb8 Qa6 6.Nb5 Nd7 7.Qc7
  47766804  12     126.8    -0.11  Nh8 2.Bd3 Nf7 3.Rf2 Rg6 4.Kh1 Ng5 5.Rf1
                                   Rb8 6.Bh4 Rb4 7.Nb5
  56066044  12&#58;    150.0    -0.11  Nh8 2.Bd3 Nf7 3.Rf2 Rg6 4.Kh1 Ng5 5.Rf1
                                   Rb8 6.Bh4 Rb4 7.Nb5
 110130961  13     303.3    -0.09  Nh8 2.Nd2 Nf7 3.Qa4 Rg6 4.Rd3 Bd7 5.Qb3
                                   Qxa5 6.Qb7 Rc8 7.Bh4 Rc7
 160195202  13&#58;    447.0    -0.09  Nh8 2.Nd2 Nf7 3.Qa4 Rg6 4.Rd3 Bd7 5.Qb3
                                   Qxa5 6.Qb7 Rc8 7.Bh4 Rc7
 229196911  14     634.3    -0.15  Nh8 2.Nd2 Nf7 3.Qa4 Rg6 4.Rd3 Bd7 5.Qa1
                                   Rb8 6.Rxb8 Qxb8 7.Bh4 Rh6 8.Qe1 Qb2
 784896344  14&#58;   2102.2    -0.15  Nh8 2.Nd2 Nf7 3.Qa4 Rg6 4.Rd3 Bd7 5.Qa1
                                   Rb8 6.Rxb8 Qxb8 7.Bh4 Rh6 8.Qe1 Qb2
1261236298  15    3387.4    -0.14  Nh8 2.Nd2 Nf7 3.Qa4 Ng5 4.Rd3 Bd7 5.Qa1
                                   Rb8 6.Rxb8 Qxb8 7.Bf2 Rg6 8.Kh1 Nf7
                                   9.Bh4
3688449069  15&#58;   9690.7    -0.14  Nh8 2.Nd2 Nf7 3.Qa4 Ng5 4.Rd3 Bd7 5.Qa1
                                   Rb8 6.Rxb8 Qxb8 7.Bf2 Rg6 8.Kh1 Nf7
                                   9.Bh4
6268879114  16   16453.0    -0.11  Nh8 2.Nd2 Qxa5 3.Na4 Qd8 4.Ra3 Bd7
                                   5.Rb7 Nf7 6.Nc3 a6 7.Nf3 Bc8 8.Rb2 Rg6
                                   9.Nh4 Rg5
Top

Return to “Computer Chess Club: General Topics”