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Subject: Re: Execellent bad trade position for little amateur engines

Author: Uri Blass

Date: 16:07:27 02/08/05

On February 08, 2005 at 18:41:16, Daniel Mehrmannn wrote:

>Hello,
>
>my engine have at the moment no trade code. I thought thats not so importent.
>For example its funny if homer give a knight+pawns vs rook.
>
>But this evening i can't believe what happend:
>
>Fruit vs Homer:
>FEN: r2q1rk1/ppp2ppp/3bb3/2nNBB2/8/8/PPP2PPP/R2QR1K1 b - - 4 13
>
>(I'm sorry, but i have no glue how to post this as diagram and which software).
>A little HOWTO/Hyperlink would be nice)
>
>Homer play here Bxe5 with +1.6 for black.
>
>If we are analyze we see that black will be lost after:
>Bxe5 Txe5 Qd6 Qd4 Nd7 Bxh7+ Qh4+ Kg8 Ne7+ Qxe7 Qxe7 Nxe5 Qxc7 (allso homers pv)

I do not see it.
The line that you give is not forced  and even after all the line I do not see
that white is winning(Movei see advantage for black and the same for Junior9)

New game,
[D]r4rk1/ppQ2pp1/4b3/4n3/8/8/PPP2PPP/R5K1 b - - 0 1

Analysis by Junior 9:

8...Nf3+ 9.gxf3 Rac8 10.Qxb7 Rxc2 11.Qxa7
  +-  (2.66)   Depth: 3   00:00:00
8...Nd7 9.Rd1
  ±  (0.86)   Depth: 3   00:00:00
8...Nc6 9.Rd1
  ±  (0.83)   Depth: 3   00:00:00
8...Nc4 9.Re1
  ²  (0.57)   Depth: 3   00:00:00
8...Nc4 9.b3 Rac8 10.Qxb7 Nd2 11.c4
  ²  (0.43)   Depth: 6   00:00:00  10kN
8...Nc6 9.Qxb7 Rac8 10.Rd1 Bxa2
  ²  (0.39)   Depth: 6   00:00:00  12kN
8...Ng4!
  ²  (0.27)   Depth: 6   00:00:00  21kN
8...Ng4 9.h3 Nf6 10.Rd1 Rac8
  =  (0.24)   Depth: 6   00:00:00  25kN
8...Ng4 9.h3 Nf6 10.Qxb7 Rab8 11.Qxa7 Rxb2 12.Qa4
  ²  (0.27)   Depth: 9   00:00:00  125kN
8...Ng6 9.c4 b6 10.b3 Rfd8
  =  (0.05)   Depth: 9   00:00:00  205kN
8...Ng6 9.b3 Rac8 10.Qxb7 Rxc2 11.Qxa7 Rd8 12.Qb6 Rdd2 13.Qb8+ Kh7
  =  (0.01)   Depth: 12   00:00:01  998kN
8...Ng6 9.b3 Rac8 10.Qxb7 Rxc2 11.Qxa7 Rd8 12.a3 Nf4 13.Qb6 Ne2+ 14.Kf1 Rcd2
15.Re1
  =  (-0.09)   Depth: 15   00:00:05  9130kN
8...Ng6 9.Qxb7 Rab8 10.Qxa7 Rxb2 11.a4 Rfb8 12.Re1 Nf4 13.a5 Bd5 14.g3 Nh3+
15.Kf1 Rb1
  =  (-0.16)   Depth: 17   00:00:28  52711kN

(,  09.02.2005)


Uri

Re: Execellent bad trade position for little amateur engines Daniel Mehrmannn 04:53:19 02/09/05

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