Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Fritz 9 - the first human-like chess engine in the world

Author: Uri Blass

Date: 15:57:08 10/28/05

Go up one level in this thread


On October 28, 2005 at 18:03:20, Drexel,Michael wrote:

>On October 28, 2005 at 18:00:22, Drexel,Michael wrote:
>
>>"The program has become more human in a different way. It now has extensive
>>chess knowledge and a human evaluation structure, ensuring that it finds good
>>moves and interesting ideas where there are no direct tactics to guide it. You
>>will appreciate the value of this when you analyze with the program. Fritz 9
>>thinks and plans like a human, while retaining the tactical ferocity of the
>>world’s top chess engine" www.chessbase.com
>>
>>You don´t believe this? You think that´s a load of crap?
>>
>>You are wrong, please look at the following examples and decide yourself:
>>
>>Example 1:
>>
>>[D]rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 4
>>
>>Analysis by Fritz 9:
>>
>>4...Sfd7 5.exd6 Lxd6 6.Sb5 Lb4+ 7.c3 Lc5 8.Lg5 f6 9.Dh5+
>>  ±  (0.91)   Depth: 7/21   00:00:00  53kN
>>4...Sfd7 5.Sd5 dxe5 6.Lg5 f6 7.Lh6 Sc6 8.Dh5+ g6
>>  ±  (0.76)   Depth: 8/27   00:00:00  255kN
>>4...Sfd7 5.exd6 Lxd6 6.Sb5 Le7 7.Lf4 Sa6 8.Dd5 Lb4+ 9.c3 Lc5
>>  ±  (0.94)   Depth: 9/27   00:00:00  504kN
>>4...Sfd7 5.exd6 Lxd6 6.Sb5 Lb4+ 7.c3 La5 8.Dd5 0-0 9.Lg5
>>  ±  (1.07)   Depth: 10/29   00:00:01  1063kN
>>4...Sfd7 5.exd6 Lxd6 6.Sb5 Sf6 7.Lg5 0-0 8.Sf3 Sc6 9.Sxd6 cxd6 10.c3 De8 11.Lxf6
>>Dxe4+
>>  ±  (1.14)   Depth: 11/32   00:00:03  3319kN
>>4...Sfd7 5.exd6 Lxd6 6.Sb5 De7 7.Sxd6+ cxd6 8.Ld3 0-0 9.Se2 Sc5 10.0-0 Sxe4
>>11.Te1
>>  ±  (1.02)   Depth: 12/37   00:00:10  9001kN
>>4...Sfd7 5.exd6 Lxd6 6.Le3 0-0 7.Dd2 De7 8.0-0-0 Td8 9.Lf4 Se5 10.Sd5 De8
>>  ±  (1.16)   Depth: 13/34   00:00:24  23816kN
>>4...Sfd7 5.exd6 Lxd6 6.Le3 0-0 7.Dd2 De7 8.0-0-0 Sc6 9.Lg5 De6 10.Sf3 Sde5
>>11.Sd4 Dg4
>>  ±  (1.08)   Depth: 14/41   00:01:00  60691kN
>>4...Sfd7 5.exd6 Lxd6 6.Le3 De7 7.Dd2 Sf6 8.Ld3 0-0 9.Sf3 Sc6
>>  ±  (1.13)   Depth: 15/39   00:02:29  156351kN
>>
>>4...Nfd7!
>>A Master would not even think about the materialistic 4...dxe5? which is the
>>typical computer move in this position.
>>Instead true masters of the game willingly give up pawns in exchange for a
>>better position.
>>Unlike other engines Fritz 9 understands the importance of development and King
>>safety.

Yace is an engine that understands nothing about king safety based on my
experience and I considered it before analyzing this position as the most
materialistic engine in the world.

I am surprised to find that it also likes Nfd7

New game,
rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - 0 1

Analysis by Yace 0.99.87:

1...dxe5 2.Qxd8+ Kxd8
  ²  (0.28)   Depth: 1   00:00:00
1...dxe5 2.Qxd8+ Kxd8
  ²  (0.28)   Depth: 1   00:00:00
1...dxe5 2.Bg5
  ²  (0.36)   Depth: 2   00:00:00
1...dxe5 2.Bg5
  ²  (0.36)   Depth: 2   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5
  ²  (0.69)   Depth: 3   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5
  ²  (0.69)   Depth: 3   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Rb1
  ²  (0.29)   Depth: 4   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Bb4
  ²  (0.28)   Depth: 4   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Bb4
  ²  (0.28)   Depth: 4   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Bg4 4.f3
  ²  (0.68)   Depth: 5   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Bg4 4.Bb5
  ²  (0.69)   Depth: 5   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Bg4 4.Bb5
  ²  (0.69)   Depth: 5   00:00:00
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Bg4 4.Be2 Be6
  ²  (0.68)   Depth: 6/17   00:00:00  39kN
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Bg4 4.Be2 Be6
  ²  (0.68)   Depth: 6/19   00:00:00  65kN
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Ke8 4.Bxf6 gxf6 5.Nd5 Bd6
  ±  (0.88)   Depth: 7/19   00:00:00  146kN
1...dxe5 2.Qxd8+ Kxd8 3.Bg5 Ke8 4.Bxf6 gxf6 5.Nd5 Bd6
  ±  (0.88)   Depth: 7/22   00:00:01  359kN
1...dxe5 2.Qxd8+ Kxd8 3.Nf3 Nc6 4.Bg5 Ke8 5.Nb5 Bb4+ 6.Bd2 Bxd2+ 7.Nxd2
  ±  (0.93)   Depth: 8/25   00:00:01  881kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Qe7 4.Nxd6+ cxd6 5.Qxd6 Qxd6 6.Bd2
  ±  (0.92)   Depth: 8/26   00:00:02  1871kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Bc5 4.Bg5 f6 5.Bf4 Na6
  ±  (0.80)   Depth: 8/26   00:00:02  2035kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Bc5 4.Bg5 f6 5.Bf4 Na6
  ±  (0.80)   Depth: 8/26   00:00:02  2038kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Qe7 4.Nxd6+ cxd6 5.f3 0-0 6.Bf4 Ne5 7.Qd5
  ±  (0.91)   Depth: 9/26   00:00:03  3054kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Qe7 4.Nxd6+ cxd6 5.f3 0-0 6.Bf4 Ne5 7.Qd5
  ±  (0.91)   Depth: 9/29   00:00:05  4568kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Qe7 4.Ne2 Nc5 5.Nxd6+ cxd6 6.f3 0-0 7.Bf4 Rd8
  ±  (0.81)   Depth: 10/30   00:00:09  8598kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Qe7 4.Ne2 Nc5 5.Nxd6+ cxd6 6.f3 0-0 7.Bf4 Rd8
  ±  (0.81)   Depth: 10/30   00:00:12  11846kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Qe7 4.Nxd6+ cxd6 5.Bd3 0-0 6.Nf3 Nc5 7.Bg5 Nxd3+
8.Qxd3 Qe6
  ±  (0.89)   Depth: 11/35   00:00:23  22959kN
1...Nfd7 2.exd6 Bxd6 3.Nb5 Qe7 4.Nxd6+ cxd6 5.Bd3 0-0 6.Nf3 Nc5 7.Bg5 Nxd3+
8.Qxd3 Qe6
  ±  (0.89)   Depth: 11/35   00:00:45  41058kN
1...Nfd7 2.exd6 Bxd6 3.Nf3 0-0 4.Bc4 Nb6 5.Be2 Nc6 6.0-0
  ±  (0.83)   Depth: 12/39   00:01:42  99102kN

(,  29.10.2005)

Uri



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.