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Subject: Re: That position kills my copy of Crafty...

Author: Volker Pittlik

Date: 10:05:47 02/09/02

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On February 09, 2002 at 10:47:32, Robert Hyatt wrote:

...

>I use a real tree search to order the ply-1 move list.  There are so many
>possible captures in this position, that search takes a _long_ time.  The
>current ply-1 ordering scheme works fine for games, but not for such
>composed positions...

You're right. After some time it started:

White(1): analyze
              clearing hash tables
              time surplus   0.00  time limit 30.00 (3:30)
         nss  depth   time  score   variation (1)
starting thread 1
                1     1.41 -37.13   1. Rhxa8 Bxc3 2. N6xe5 Qxf2+
                1    33.24 -36.78   1. Ncd8+ Qaxd8 2. Rxc7+
                1    34.38 -36.68   1. N6a5+ Qxa5 2. Rxc7+
         (4)    1->  37.86 -36.68   1. N6a5+ Qxa5 2. Rxc7+
                2    38.24     ++   1. N6a5+!!
         (3)    2    42.50 -31.89   1. N6a5+ Bxa5 2. Bxd5+ Bxd5 3. Rxc7+
                                    Nxc7 4. Rxa8 Bxc3 5. Qxd7 Nxd7 6. Nxe5
                                    Qxf2+
         (2)    2    59.05 -30.06   1. Ncd8+ Qaxd8 2. Bxd5+ Bxd5 3. Rxc7+
                2->   1:07 -30.06   1. Ncd8+ Qaxd8 2. Bxd5+ Bxd5 3. Rxc7+
                3     1:09 -29.86   1. Ncd8+ Qcxd8 2. Nxd8+ Qdxd8 3. Bxd5+
                                    Bxd5 4. Qxc2 Nxd6 5. Nxe5 Qxc2 6. Rxd8
                                    Qxf2+
...

Volker




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