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Subject: Re: Another test position

Author: Jeremiah Penery

Date: 11:23:03 12/02/02

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On December 02, 2002 at 13:28:25, Steffen Basting wrote:

>Hi!
>How long do your engines need to find Nc6! with a huge white advantage (at least
>+2)?
>[D] kb2r1qr/pp3b2/1p2p3/1Pn1pp1n/R2N2pP/1PN1BPP1/4PQB1/R4K2 w - - 0 1
>
>Regards, Steffen

A modified Crafty 18.15/19.1 sort of hybrid, with many additions, AthlonXP
1600MHz.  I get only about 275k NPS here.

   7     1.01   0.36   1. Nxf5 exf5 2. Bxc5 Nxg3+ 3. Qxg3
                       bxc5 4. Rxa7+ Bxa7 5. f4
   7->   1.68   0.36   1. Nxf5 exf5 2. Bxc5 Nxg3+ 3. Qxg3
                       bxc5 4. Rxa7+ Bxa7 5. f4
   8     2.61     ++   1. Nxf5!!
   8     3.97   1.44   1. Nxf5 exf5 2. Bxc5 bxc5 3. Rxa7+
                       Bxa7 4. Qxc5 Nxg3+ 5. Kf2 Nh1+ 6. Bxh1
                       g3+ 7. Kg2 b6
   8     9.58   2.29   1. Nc6 bxc6 2. fxg4 e4 3. Rxa7+ Bxa7
                       4. Bxc5 bxc5 5. Rxa7+ Kxa7 6. gxh5
   8->   9.78   2.29   1. Nc6 bxc6 2. fxg4 e4 3. Rxa7+ Bxa7
                       4. Bxc5 bxc5 5. Rxa7+ Kxa7 6. gxh5
   9    14.45     ++   1. Nc6!!
   9    20.87   3.26   1. Nc6 bxc6 2. Bxc5 bxc5 3. fxg4 e4
                       4. Rxa7+ Bxa7 5. Rxa7+ Kxa7 6. Qxc5+
                       Kb8 7. Qd6+ Ka7 <HT>
   9->  29.14   3.26   1. Nc6 bxc6 2. Bxc5 bxc5 3. fxg4 e4
                       4. Rxa7+ Bxa7 5. Rxa7+ Kxa7 6. Qxc5+
                       Kb8 7. Qd6+ Ka7 <HT>
  10    42.91     ++   1. Nc6!!
  10     2:10   6.33   1. Nc6 bxc6 2. Bxc5 Re7 3. Bxb6 Nxg3+
                       4. Ke1 Qc8 5. Qxg3 f4 6. Qxg4



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