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Subject: Re: BUG in FRITZ 8.0023 !

Author: Eduard Nemeth

Date: 00:59:18 03/07/03

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On March 07, 2003 at 01:28:43, Drexel,Michael wrote:

>On March 06, 2003 at 22:58:42, Eduard Nemeth wrote:
>
>>First moves are: 1.e4 Nf6 2.Bc4 c6 3.a3
>>
>>[D]rnbqkb1r/pp1ppppp/2p2n2/8/2B1P3/P7/1PPP1PPP/RNBQK1NR b KQkq - 0 1
>>
>>Fritz 8.0023 played now nit Nxe4. :(
>>
>>Fritz 8.005 does it! :)
>>
>>My full german message read here:
>>
>>http://f50.parsimony.net/forum202029/messages/28.htm
>>
>>Eduard
>
>
>So what?? He searched 24 hours to find a bug and then he came up with this??
>
>Fritz 8.0.0.23 would play 3...d5 with big advantage already. After 3 moves with
>the black pieces.
>That is exactly what I want to see.
>Its just silly to allow any complications if there is a safe way to get the full
>point.
>
>Btw, Fritz 8 would never play 2...c6 and this move is also not in the Fritz8.ctg
>tree.
>
>No chessplayer (except Eduard) would like to analyse such crap (3.a3??).
>
>IMO the programers tried to find something against the apparent weaknesses of
>Fritz, which does not hurt against other programs
>It has still some drawbacks but hardly in practical play.
>Frans Morsch might find better ways in the future.
>
>Its not difficult to find other examples (die die Welt nicht braucht).
>
>[D] r1bqkb1r/pppppppp/2n2n2/8/2B1P3/8/PPPP1PPP/RNBQ1KNR b kq - 0 2
>
>1.e4 Nc6 2.Bc4 Nf6 3.Kf1??
>
>Analysis by Fritz 8:
>
>1. µ (-0.81): 3...e6 4.d3 d5 5.exd5 exd5 6.Lb5 Le7 7.Lxc6+ bxc6 8.Sf3 0-0 9.Se5
>2. ³ (-0.63): 3...a6 4.d3 e6 5.Lg5 Le7 6.Sc3 0-0 7.Sf3 d5 8.Lb3 dxe4
>3. ³ (-0.59): 3...Sa5 4.Ld3 e5 5.Sf3 Sc6 6.Lb5 Lc5 7.Sc3 0-0 8.d3
>4. ³ (-0.53): 3...d5 4.exd5 Sxd5 5.d4 Dd6 6.Se2 Sb6 7.Ld3 Lg4 8.f3 Df6
>5. ³ (-0.53): 3...e5 4.d3 Lc5 5.c3 d6 6.Sf3 0-0 7.d4 Lb6 8.Lg5
>6. ³ (-0.50): 3...d6 4.d3 Sa5 5.Sd2 Sxc4 6.Sxc4 e5 7.Sf3 Le6 8.b3
>7. ³ (-0.41): 3...g6 4.d3 Lg7 5.Sf3 0-0 6.Kg1 d5 7.exd5 Sxd5 8.De2 Lg4
>8. ³ (-0.34): 3...h6 4.d3 d5 5.exd5 Sxd5 6.Sf3 a6 7.Sbd2 Sb6 8.Kg1 Sxc4
>9. ³ (-0.34): 3...Tb8 4.d3 d5 5.exd5 Sxd5 6.Sf3 Lg4 7.Sbd2 Sa5 8.h3 Lh5
>10. ³ (-0.34): 3...a5 4.Sc3 Sxe4 5.Sxe4 d5 6.Ld3 dxe4 7.Lxe4 e5
>11. ³ (-0.31): 3...Sd4 4.Se2 Sxe2 5.Dxe2 d5 6.exd5 Sxd5 7.Sc3 Sb6 8.Ld3 c6 9.Le4
>12. = (-0.22): 3...h5 4.Sc3 e6 5.Sf3 d5 6.exd5 exd5 7.Lb5 Le7 8.Kg1 0-0
>13. = (-0.19): 3...Se5 4.Lb3 Sg6 5.Sc3 e6 6.d4 d5 7.exd5 exd5 8.Lg5 c6
>14. = (-0.19): 3...b6 4.Sc3 Lb7 5.Sf3 Sxe4 6.Sxe4 d5 7.Ld3 dxe4 8.Lxe4 Dd6 9.d4
>15. = (-0.19): 3...Sb4 4.e5 d5 5.Lb3 Sd7 6.d4 Sb6 7.c3 Sa6 8.Sd2
>16. = (-0.16): 3...b5 4.Lxb5 Sxe4 5.Lxc6 dxc6 6.d3 Dd6 7.Df3 Sf6 8.Lf4
>17. = (-0.16): 3...Tg8 4.d3 Se5 5.Lb3 d5 6.exd5 Sxd5 7.Dh5 g5 8.Lxd5
>18. = (-0.09): 3...g5 4.d3 Lg7 5.Sc3 g4 6.Sge2 Sa5 7.Kg1 Sxc4
>19. = (-0.03): 3...Sb8 4.e5 d5 5.Le2 Sfd7 6.Sf3 e6 7.Kg1 c5 8.d4 Sc6
>20. = (0.06): 3...Sg8 4.d4 d6 5.Sf3 Sf6 6.Lb5 a6 7.Lxc6+ bxc6 8.Sbd2
>21. ² (0.41): 3...Sg4 4.Lxf7+ Kxf7 5.Dxg4 e5 6.Sf3 Kg8 7.Dg3 Df6
>22. ± (1.25): 3...Sxe4 4.d3 Sf6 5.Sc3 d5 6.Lb5 Lg4 7.Sf3 a6 8.Lxc6+ bxc6
>
>depth 14
>
>Michael

:(

a) BUG is a BUG

b) It is BUG like 8.0019

c) Fritz 8.005 hase it NOT! (see my other post).

E.



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