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Subject: Re: DJ7 and Nolot #1

Author: Amir Ban

Date: 01:12:00 04/18/02

Go up one level in this thread


On April 17, 2002 at 23:03:46, Robert Hyatt wrote:

>On April 17, 2002 at 19:39:00, Slater Wold wrote:
>
>>[D]r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1
>>
>>Deep Junior 7 - W,S
>>r3qb1k/1b4p1/p2pr2p/3n4/Pnp1N1N1/6RP/1B3PP1/1B1QR1K1 w - - 0 1
>>
>>Analysis by Deep Junior 7:
>>
>>1.a5 Rb8
>>  =  (-0.09)   Depth: 3   00:00:00
>>1.Qd4 Rc8 2.a5 Qf7
>>  =  (0.10)   Depth: 6   00:00:00  12kN
>>1.Qd4 Rc8 2.a5 Qf7
>>  =  (0.10)   Depth: 6   00:00:00  12kN
>>1.Qd4 Rc8 2.a5 Qf7
>>  =  (0.10)   Depth: 6   00:00:00  12kN
>>1.Qd4 c3 2.Bxc3 Nxc3 3.Qxb4 Nxe4 4.Qxb7 Re7 5.Qxe4 Rxe4 6.Bxe4
>>  ³  (-0.28)   Depth: 9   00:00:00  295kN
>>1.Qd4 c3
>>  ³  (-0.58)   Depth: 12   00:00:02  3710kN
>>1.Nxh6 c3 2.Bxc3 Nxc3 3.Rxc3 Bxe4 4.Bxe4 Rxe4 5.Nf7+ Kg8 6.Rxe4 Qxe4 7.Rc7 Nd5
>>8.Rb7
>>  ³  (-0.40)   Depth: 12   00:00:06  5348kN
>>1.Nxh6 c3 2.Kh2 Rxh6 3.Nxc3 Qf7 4.Nxd5 Nxd5 5.Qb3 Rb8 6.Rf3 Qc7 7.Ba2 Qc5
>>  ³  (-0.33)   Depth: 15   00:00:52  141244kN
>>1.Nxh6 c3 2.Re2 Rxh6 3.Nxc3 Qh5 4.Qd4 Rc8 5.Nxd5 Qxe2 6.Qxg7+ Bxg7 7.Bxg7+ Kg8
>>8.Bxh6+ Kh8 9.Bg7+ Kg8
>>  =  (0.00)   Depth: 18   00:08:20  1282187kN
>>1.Nxh6 c3 2.Kh2 Rxh6 3.Nxc3 Qf7 4.Ne4 Kg8 5.Ng5 Qxf2 6.Bd4 Qf4 7.Re4 Qf5 8.Re6
>>Qxe6 9.Nxe6 Rxe6 10.Bg6
>>  =  (0.05)   Depth: 21   02:12:53  3424665kN
>>1.Nxh6 c3 2.Kh2 Rxh6 3.Nxc3 Qf7 4.Ne4 Kg8 5.Ng5 Qxf2 6.Bd4 Qf4 7.Rf1 Qh4 8.Rg4
>>Qh5 9.Nf7 Re6 10.Rxg7+
>>  =  (0.25)   Depth: 22   05:53:54  2940289kN
>>
>>(W,  17.04.2002)
>>
>>
>>Took DTII 6 hours to find this move.
>>
>>Takes Ferret (4x450) under an hour to find it, and another 4 hours to show a
>>score of +1.
>>
>>I thought it was pretty impressive, seeing as how DJ7 would play this move in a
>>blitz game.  (It was still failing high when I ended the search.)
>
>\
>Note that DT found it for the right reason (winning material).  DJ is finding
>it by a simple evaluation term that happens to work well here.  The scores
>obviously show that it doesn't think the move is winning anything...

What is the "simple evaluation term" ?

Amir




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