Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Fritz 7(a) Bug

Author: Jeroen van Dorp

Date: 15:29:38 12/19/01

Go up one level in this thread


That is weird,  but my 7a copy had no problem the first time to play 0-0-0 after
Rxb2 , but when I repeat it, the same analysis comes up again and again as with
your copy.....


Analysis by Fritz 7:

2.0-0-0 Ne2+ 3.Nxe2 Bd7 4.a3 Ra2 5.Bd4 Nf6
  +-  (2.10)   Depth: 8/20   00:00:00  151kN
2.0-0-0 Ne2+ 3.Nxe2 Bd7 4.a3 Ra2 5.Bxa7 c3 6.Kb1 Rxa3
  +-  (2.00)   Depth: 9/21   00:00:01  375kN
2.0-0-0 Ne2+ 3.Nxe2 Bd7 4.Bd4 Bxd4 5.Rxd4 Rxa2 6.Kb1 Ra4 7.Rhd1 Rb4+ 8.Kc1
  +-  (2.16)   Depth: 10/27   00:00:02  855kN
2.0-0-0 Ne2+ 3.Nxe2 Bd7 4.a3 Ra2 5.Bxa7 Rxa3 6.Bd4 Nf6 7.Kb2
  +-  (2.07)   Depth: 11/26   00:00:05  1794kN
2.0-0-0 Ne2+ 3.Nxe2 Bd7 4.Bd5 Ba4 5.Nd4 Bxd4 6.Rxd4 Rxc2+ 7.Kb1 Nf6 8.Bxc4 e5
  +-  (2.16)   Depth: 12/30   00:00:10  4225kN
2.0-0-0 Ne2+ 3.Nxe2 Bd7 4.Bd5 Ba4 5.Nd4 c3 6.Bc6+ Bxc6 7.Nxc6 f5 8.a3 a6 9.Nf3
  +-  (2.22)   Depth: 13/33   00:00:29  10829kN
2.0-0-0 Ne2+ 3.Nxe2 Bd7 4.Bd5 Ba4 5.Nd4 c3 6.Bc6+ Bxc6 7.Nxc6 f5 8.a3
  +-  (2.19)   Depth: 14/36   00:01:05  26128kN

(van Dorp, Utrecht 20.12.2001)

I could reproduce it though by removing the EPD tage for white's castle
kingside:


4k1nr/p3ppbp/4b1p1/8/2pnB2N/2N1B1P1/PrP2P1P/R3K2R w Q - 0 1

Analysis by Fritz 7:

1.0-0-0 Ne2+ 2.Nxe2 Bd7 3.a3 Ra2 4.Bd5 Rxa3
  +-  (2.50)   Depth: 7/19   00:00:00  113kN
1.0-0-0 Ne2+ 2.Nxe2 Bd7 3.a3 Ra2 4.Bd5 Rxa3 5.Bxc4
  +-  (2.50)   Depth: 8/22   00:00:00  188kN
1.0-0-0--
  +-  (2.22)   Depth: 9/23   00:00:00  246kN
1.0-0-0 Ne2+ 2.Nxe2 Bd7 3.a3 Ra2 4.Bd5 Ba4 5.Be4
  +-  (2.13)   Depth: 9/23   00:00:01  433kN
1.0-0-0 Ne2+ 2.Nxe2 Bd7 3.Bd4 Bxd4 4.Rxd4 Rxa2 5.Kb1 Ra4 6.Rhd1 Rb4+ 7.Kc1
  +-  (2.16)   Depth: 10/27   00:00:03  964kN
1.0-0-0 Ne2+ 2.Nxe2 Bd7 3.a3 Ra2 4.Bxa7 Nf6 5.Bd4 Rxa3 6.Kb2
  +-  (2.07)   Depth: 11/27   00:00:06  2076kN
1.0-0-0 Ne2+ 2.Nxe2 Bd7 3.Bd4 Bxd4 4.Rxd4 Rxa2 5.Nc3 Ra1+
  +-  (2.16)   Depth: 12/30   00:00:13  4506kN

(Dorp,van, Utrecht 20.12.2001)


But when I let the Fritz (and ChessBase 8.0) setup screen popup (by hitting the
S), I check out the opcodes and I see the king castle tag is back again without
my consent and I get the same result:

4k1nr/p3ppbp/4b1p1/8/2pnB2N/2N1B1P1/PrP2P1P/R3K2R w KQk - 0 1

Analysis by Fritz 7:

1.Kd2 Nf6 2.Bxg6 Ng4 3.Nd1 c3+ 4.Kxc3
  -+  (-1.56)   Depth: 6/21   00:00:00  88kN
1.Kd2 Nf6 2.Bxg6 Ng4 3.Kc1 Ne2+ 4.Nxe2 Nxe3
  -+  (-1.71)   Depth: 7/21   00:00:00  148kN
1.Rb1
  -+  (-1.68)   Depth: 7/21   00:00:01  346kN
1.Rb1 Nb5 2.Bc6+ Bd7 3.Bxd7+ Kxd7 4.Rd1+ Kc6 5.Nxb5 Kxb5 6.Rd5+ Ka6 7.Kd2 Rxa2
  -+  (-1.87)   Depth: 8/22   00:00:02  583kN
1.Kd2
  -+  (-1.84)   Depth: 8/22   00:00:02  624kN
1.Kd2
  -+  (-1.68)   Depth: 8/25   00:00:03  672kN
1.Kd2 Nf6 2.Bxd4 Nxe4+ 3.Nxe4 Bxd4 4.Nf3 Bg7 5.Rhd1
  -+  (-1.46)   Depth: 8/25   00:00:03  842kN
1.Kd2 Nf6 2.Bxd4 Nxe4+ 3.Nxe4 Bxd4 4.Nf3 Bg7 5.Rhb1 Bd5 6.Rxb2
  -+  (-1.59)   Depth: 9/26   00:00:05  1311kN

(Dorp,van, Utrecht 20.12.2001)


Could it be a GUI problem? As CB8 and Fritz6/7 GUI are closely related? A
misinterpretation of some kind?

J.



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.