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Subject: Re: Nolot progress?

Author: Tord Romstad

Date: 05:19:04 03/24/04

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On March 23, 2004 at 23:02:00, Dann Corbit wrote:

>Has any program made real progress at solving the Nolot positions?
>
>For instance, do any commercial or freeware programs solve them with a
>convincing score within an hour on any hardware?

I'll try.  I don't have much CPU time to spare, and I will probably need
a week or two before I have analyzed all the positions.  Here is Gothmog's
analysis of the first position (60 minutes on a PIV 2.4 GHz).  The right
move is chosen after 4:01.  After 60 minutes Gothmog is in the middle of
iteration 15, and the lower and upper bounds for the root scores are
+0.44 and +0.91.  This probably cannot be considered a convincing score.

>r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - bm Nxh6; id "Nolot.1,

 1       -0.53     0.00        153 Qd4
 2       -0.72     0.00        622 Qd4 Rc8
 3       -0.69     0.01       1315 Qd4 Rc8 a5
 4       -0.69     0.03       3778 Qd4 Rc8 Rc1 Qc6
 5       -0.59     0.22      20636 Qd4 Rc8 Rc1 Qxa4 Rxc4 Rxc4 Qxc4
 6    <= -0.62     0.49      48352 Qd4 Rc8 Rc1 a5 Nc3 Nf6
 6    <= -0.66     0.52      52781 Qd4 Rc8 Rc1 Nf4 Nxd6 Re1+
 6    <= -0.72     0.71      67481 Qd4 Rc8 Rc1 Nf4 Nxd6 Re1+
 6    >= -0.84     0.77      74846 Qd4 Rc8 a5 Nf6 Rge3
 6    >= -0.81     0.78      75406 Qd4 Rc8 a5 Nf6 Rge3
 6    <= -0.75     0.81      79494 Qd4 Rc8 a5 Nf6 Rge3 Qc6
 6    <= -0.78     0.95     100939 Qd4 Rc8 a5 Qf7 Ne3 Nf6
 6    >= -0.78     0.96     101717 Qd4 Rc8 a5 Qf7 Ne3 Nf6
 6       -0.78     0.97     101717 Qd4 Rc8 a5 Qf7 Ne3 Nf6
 7    >= -0.78     1.06     115487 Qd4 Rc8 a5 Qf7 Ne3 Nf6 Nc3
 7    >= -0.75     1.08     118706 Qd4 Rc8 a5 Qf7 Ne3 Nf6 Nc3
 7    >= -0.62     1.25     142279 Qd4 Rc8 Ne3 Nxe3 Rexe3 Qxa4 Rxg7
 7    <= -0.38     1.57     188125 Qd4 c3 Bxc3 Nxc3 Qxb4 Bxe4 Rxc3 d5
 7    >= -0.38     1.73     214053 Qd4 c3 Bxc3 Nxc3 Rxc3 Qxa4 Rc7 Qb5
 7       -0.38     1.74     214053 Qd4 c3 Bxc3 Nxc3 Rxc3 Qxa4 Rc7 Qb5
 8    >= -0.38     3.31     486147 Qd4 c3 Bxc3 Nxc3 Rxc3 Qxa4 Rc7 Qb5 Ne3
 8    <= -0.38     3.88     575493 Qd4 Qxa4 Ne3 Re5 Qd2 Nxe3 Bxe5 Nxg2 Nxd6
 8       -0.38     3.89     575493 Qd4 Qxa4 Ne3 Re5 Qd2 Nxe3 Bxe5 Nxg2 Nxd6
 9    <= -0.41     8.34    1296584 Qd4 c3 Bxc3 Nxc3 Rxc3 Qxa4 Rc7 Qb5 Ne3
                                   Be7
 9    <= -0.44     8.59    1345558 Qd4 c3 Bxc3 Nxc3 Rxc3 d5 Rc7 Bc6
 9    <= -0.50     9.16    1452191 Qd4 c3 Bxc3 Nxc3 Rxc3 d5 Rc7 Bc6
 9    <= -0.66    11.29    1822329 Qd4 c3 Bxc3 Nxc3 Rxc3 d5 Rc7 Bc6
 9    >= -0.94    12.25    1989770 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
 9    >= -0.91    12.32    2005355 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
 9    >= -0.78    13.55    2218795 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
 9    <= -0.69    14.12    2330043 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
 9    <= -0.72    15.14    2511444 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
 9    >= -0.75    15.25    2534278 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
 9    >= -0.72    15.63    2601831 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
 9       -0.72    15.65    2601831 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
10    >= -0.72    19.07    3197400 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
10    <= -0.72    31.46    5219779 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4
10       -0.72    31.48    5219779 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4
11    <= -0.75     1:19   13128340 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4
11    <= -0.78     1:55   19101503 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4
11    <= -0.84     2:15   22517765 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4
11    <= -1.00     3:40   36038194 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4
11    >= -1.28     3:49   37595533 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
11    >= -1.25     3:50   37777547 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
11    >= -1.12     3:52   38150890 Qd4 c3 Bxc3 Nxc3 Qxb4 Nxe4 Qxb7 Rb8 Qxb8
                                   Qxb8 Bxe4
11    >= -1.00     4:01   39798937 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Qh4+ Kg8
                                   Nexd6
11       -1.00     4:01   39798937 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Qh4+ Kg8
                                   Nexd6
12    >= -1.00     4:12   41807515 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Qh4+ Kg8
                                   Nexd6
12    <= -1.00     8:39   85222760 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Qh4+ Kg8
                                   Nexd6 Bxd6 Rxe6
12       -1.00     8:39   85222760 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Qh4+ Kg8
                                   Nexd6 Bxd6 Rxe6
13    >= -1.00     9:09   90793595 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6 Bg7
13    >= -0.97     9:19   92810567 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6 Bg7 Nf6+
13    >= -0.84     9:33   95796439 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6 Bg7 Nf6+
13    >= -0.56    10:05  101883340 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6 Bg7 Nf6+
13    >= -0.06    11:07  112919074 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6 Bg7 Nxd6
13    <=  0.69    12:05  122091535 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6
13    <=  0.66    12:13  123568334 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6
13    <=  0.59    12:20  124872799 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Kg8
                                   Nxg6
13    <=  0.44    12:42  128973823 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Nf4
                                   Qxf4 Nd5
13    <=  0.12    13:27  136562647 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Nf4
                                   Qxf4 Nd5
13    >= -0.03    13:55  141972003 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Nf4
                                   Qxf4 Nd5 Qg5
13    >=  0.00    14:14  145672390 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Nf4
                                   Qxf4 Nd5 Qg5
13    <=  0.09    14:37  149753797 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Nf4
                                   Qxf4 Nd5
13    <=  0.06    14:46  151591389 Nxh6 c3 Nf5 cxb2 Qg4 g6 Re2 Qd7 Nh4 Nf4
                                   Qxf4 Nd5
13    <=  0.00    15:17  156981451 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Nf6+
                                   Nxf6 Nh6+ Kh8 Nf7+
13        0.00    15:17  156981451 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Nf6+
                                   Nxf6 Nh6+ Kh8 Nf7+
14    >=  0.00    18:07  187408924 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Nf6+
                                   Nxf6 Nh6+ Kh8 Nf7+
14    <=  0.00    23:58  244281027 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Nf6+
                                   Nxf6 Nh6+ Kh8 Nf7+ Kg8 Nh6+
14        0.00    23:58  244281027 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Nf6+
                                   Nxf6 Nh6+ Kh8 Nf7+ Kg8 Nh6+
15    >=  0.00    30:34  316112254 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Nf6+
                                   Nxf6 Nh6+ Kh8 Nf7+ Kg8 Nh6+
15    >=  0.03    36:22  378379454 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Ng5
                                   Rxe1+ Kh2 Nf6 Nh6+ gxh6 Nh7+ Kh8 Nxf6
                                   Qxh3+ Qxh3 Bg7 Qd7
15    >=  0.16    41:31  435263733 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Ng5
                                   Rxe1+ Kh2 Nf6 Nh6+ gxh6 Nh7+ Kh8 Nxf6
                                   Qxh3+ Qxh3 Bg7 Qd7
15    >=  0.44    50:06  527215717 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Rg6
                                   Rxe4 Nh6+ Kh8 Ng4+ Kg8 Bxe4
15    <=  0.91    58:05  609294172 Nxh6 c3 Nf5 cxb2 Qg4 Qd7 Qh5+ Kg8 Rg6
                                   Rxe4 Nh6+ Kh8 Ng4+ Kg8 Bxe4

Tord



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