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Subject: Re: A bug in Rebel 9

Author: Milton Zucker

Date: 08:59:57 04/12/98

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On April 12, 1998 at 08:32:29, Georg Langrath wrote:

>
>Bug in Rebel 9
>
>If you put in this moves in Rebel 9 one after another with help of
>player-player-feature and the back the moves one after another then in
>move 18 you suddenly have two kings. The same thing happens also in
>Rebel 7 and Rebel 8.
>
>
>  1.  e2-e4    e7-e5
>  2. Ng1-f3   Nb8-c6
>  3.  d2-d4    e5xd4
>  4. Nf3xd4   Ng8-f6
>  5. Bf1-d3   Nc6xd4
>  6.   O-O     d7-d5
>  7. Nb1-c3    d5xe4
>  8. Nc3xe4   Nf6xe4
>  9. Bd3xe4   Bc8-f5
> 10. Be4xb7   Ra8-b8
> 11. Rf1-e1+  Bf8-e7
> 12. Bc1-g5    f7-f6
> 13. Bg5-e3   Rb8xb7
> 14. Be3xd4     O-O
> 15. Qd1-f3   Rb7-b5
> 16.  c2-c4   Rb5-b8
> 17. Qf3xf5   Qd8xd4
> 18. Re1xe7   Rf8-d8
> 19. Qf5-e6+  Kg8-f8
> 20. Qe6-f7+  Qd4-d1+
> 21. Re7-e1+  Qd1-d2

Unless I entered the these moves incorrectly, the game should be over
after move 20.  Qe6 - f7 checkmate.

regards,
Milton



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