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Subject: Re: A good test position for program. - MacChess plays Rxf4

Author: Côme

Date: 00:52:12 12/05/99

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On December 05, 1999 at 01:25:12, Richard A. Fowell (fowell@netcom.com) wrote:

>On December 04, 1999 at 15:01:57, Côme wrote:
>
>>Hello,
>>In this position:
>>8/prr2p1p/2R5/PP2pP2/3pRbPk/2pB3P/2P3K1/8 w - - 0 1
>>Does your program play the strong Rxf4! ?
>>Best Regards
>>Alexandre Côme
>
>On my 180 MHz Mac, MacChess plays this after roughly 2 minutes.
>
>8/prr2p1p/2R5/PP2pP2/3pRbPk/2pB3P/2P3K1/8 w - -
>
>Saturday, December 4, 1999  9:48 PM
>
>07/02|00:00:01|      156227|  -10| Rd6 Rd7 Rxd7 Rxd7 Be2 Re7 b6 Kg5
>08/01|00:00:02|      312473|  -10| Rd6 Rd7 Rxd7 Rxd7 Be2 Re7 a6 f6 Bc4
>09/01|00:00:06|      857481|  -29| Rd6 Rd7 Rc6 h5 gxh5 Kxh5 Be2+ Kg5 a6 Rb8 Bd3
>09/02|00:00:07|     1091262|  -26| Rxc7 Rxc7 Re1 h5 gxh5 Kxh5 Be4 Rc5 Bd3 a6
>Be2+ Kg5
>10/01|00:00:17|     2602289|  -25| Rxc7 Rxc7 Re1 h5 gxh5 Kxh5 b6 axb6 axb6 Rb7
>Rb1 Re7
>10/02|00:00:21|     3162766|  -23| Rd6 Rd7 Rxd7 Rxd7 Re1 h5 gxh5 Kxh5 b6 f6 Be2+
>Kg5 Bb5
>11/01|00:00:47|     7238589|  -30| Rd6 Rd7 Ra6 h5 Be2 hxg4 hxg4 Rb8 f6 Rdb7 Rd6
>Rg8
>11/24|00:02:02|    19049049|  -18| Rxf4 exf4 Rh6+ Kg5 Rh5+ Kf6 g5+ Ke5 Rxh7 Re7
>Kf3 Re8 g6 Rf8 g7 Re8
>12/01|00:02:26|    22731353|  -19| Rxf4 exf4 Rh6+ Kg5 Rxh7 Re7 Rh5+ Kf6 g5+ Ke5
>Kf3 f6 a6 Rbc7 g6 Rc5 Ke2
>13/01|00:05:13|    48717458|  -19| Rxf4 exf4 Rh6+ Kg5 Rxh7 Re7 Rh5+ Kf6 g5+ Ke5
>Kf3 Re8 g6 Rf8 g7 Rg8 a6 Re7
>14/01|00:13:17|   124135038|  -13| Rxf4 exf4 Rh6+ Kg5 Rxh7 Re7 Rh5+ Kf6 g5+ Ke5
>Kf3 Re8 a6 Rbb8 Rh7 Re7 g6 Rf8 g7

Hello,
MacChess find Rxf4 but it doesn't find the strongest continuation.
Best Regards
Alexandre Côme



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