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Subject: Re: Crafty 14.10 vs Chessmaster 5500 0-1

Author: Stuart Cracraft

Date: 14:24:00 02/23/98

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On February 22, 1998 at 11:29:48, John Wentworth wrote:

>Here is a neat little game played on Chess.net. Crafty got his knight
>trapped down in enemy territoy and that cost it the game. It was a lot
>of fun to watch it.
>
>[Event ""]
>[Site ""]
>[Date "1998.02.22"]
>[Round "?"]
>[White "Chessmaster 5500 P166MMX 48mb"]
>[Black "Crafty 14.10"]
>[Result "*"]
>
>1. e4 c5
>2. c3 d5
>3. exd5 Qxd5
>4. d4 Nf6
>5. Nf3 Bg4
>6. Be2 e6
>7. h3 Bh5
>8. Na3 Be7
>9. Nb5 Na6
>10. Bf4 O-O
>11. O-O Rfd8
>12. c4 Qf5
>13. Bh2 Qe4
>14. Nc3 Qg6
>15. Ne5 Qg5
>16. Bxh5 Qxh5
>17. Qxh5 Nxh5
>18. d5 Nb4
>19. dxe6 fxe6
>20. Rad1 Nc2
>21. g4 Nf6
>22. g5 Ne8
>23. Ne4 Rd4
>24. Rxd4 cxd4
>25. Nd3 h6
>26. c5 a5
>27. a3 hxg5
>28. Rc1 Nf6
>29. Nxg5 e5
>30. Bxe5 Nd7
>31. Nf3 Rf8
>32. Kg2 Nxe5
>33. Nfxe5 Nxa3
>34. bxa3 Rc8
>35. Kf3 Kh7
>36. Ke4 Bg5
>37. Rb1 Rc7
>38. Nc4 Bd8
>39. Nd6 b6
>40. cxb6 Rc6
>41. b7 Bc7
>42. Nf5 Bb8
>43. Nxd4  *

An interesting game.

One of the features that the present GNU has which I think is a good
feature is that if the combined number of trapped, pinned, or hung
pieces is greater than one, it may extend the search by one ply
(with certain limits on total extensions.)

In playing against my program, GNU is always pinning, trapping, or
causing my pieces to hang due to multiple threats.

Anyway, I think it is a good feature to have. I'm sure Crafty has
something like it?

--Stuart



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