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Subject: Re: crafty vs virtualchess2 (round 6)

Author: Mike Byrne

Date: 20:07:14 10/30/97

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On October 30, 1997 at 22:43:12, Robert Hyatt wrote:

>On October 30, 1997 at 20:20:41, jeff wrote:
>
>>This game has an interesting position after 36...Kf8.
>>Here crafty played 37. Bf1 which really strikes me as just plain bad,
>>especially considering the resulting cage its king finds itself in
snip
>This position was interesting.  I've looked at it for a while myself.  I
>simply don't like a lot of things that happened, but felt that Crafty
>played quite reasonably most of the time.  Allowing the opponent a good
>bit of leeway at times (ie letting the rook and queen reach its second
>rank seemed risky to me) but it seems to know what it was doing.  It
>just
>reached a position where it was losing, without knowing it was losing.
>The
>bad thing is it saw all of the opponent's threats, just couldn't find a
>way
>to solve them.
>
>The game this morning was probably the worst I've seen Crafty play.
snip

Unfortunately - some positions (and some openings) are hard to play.  In
one of the games i noticed my Crafty is out of book quite early -- and
those type of games can very hard ..for any program.

Here is a game played by a beta-crafty (ver 13.8 ) ...similiar to some
of the games in paris..
against Mephisto Genius 68030 33 mhz (self contained unit) --
equalivalent to somewhere between a 486-66mhz - 100 mhz (Genius 2)in my
estimation.  Just a bad position to play from the white side (60 moves
15 minutes):

[Event "Computer chess game"]
[Site "CHESSMAN"]
[Date "1997.10.30"]
[Round "-"]
[White "Crafty 13_8"]
[Black "Mephisto 68030"]
[Result "0-1"]
[TimeControl "60/900"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6
8.
Qd2 Rb8 9. h4  e5!( out of book here) 10. d5 (in book) Ne7 (out of book)
11. Bh6 (out of book - not crazy about the move -- but in many
cases..this is the move! with B @ g7) Bxh6 12. Qxh6 Nh5 13. O-O-O!? (I
liked this move! but the K-side attack never got off) f5! (great move)
14. g3? (dubious - Crafty has been making moves like this lately)
b5! (love this move) 15. cxb5 axb5 16. Qe3( oh-oh) b4! 17. Nb1(yikes)
Ra8 18. Qb3(not looking good here - here crafty stated seeing many more
threats than Mephisto) Ng7 (seems slow) 19. Nd2 Ba6 20. f4 fxe4
21. Nxe4 Kh8 22. Rd2 Qb8 23. fxe5 dxe5 24. Bg2 Ngf5 25. g4 Bxe2 26. gxf5
Nxf5 27. Ng3 Bg4 28. h5 g5! ( kept the pawns for protection and later
for pushing ..must move) 29. Nxf5 Bxf5 30. Bf1 Qa7 (other moves may be
more promising here) 31. Bc4 Qc5 32. Re1 h6 33. Kd1 Bb1 34. a3 bxa3 35.
bxa3 Bf5 36. Qc3 Bg4+ 37. Kc1 Qxa3+ 38. Qxa3
Rxa3 39. Kb2 Raf3 40. Rxe5 Bxh5 41. Re6 Kg7 42. Re7+ R8f7 43. Re6 R3f6
44.
Kc3 Bg4 45. Re1 Rd6 46. Rd3 h5 47. Rg3 Rf3+ 48. Rxf3 Bxf3 49. Re7+ Kf6
50.
Rh7 h4 51. Kd4 Bg2 52. Rxc7 h3 53. Kc5 Rd8 54. Rc6+ Kf5 55. Bd3+ Kf4 56.
Rf6+ Kg3 57. d6 h2 58. Rh6 h1=Q 59. Rxh1 Bxh1 60. Bc4 Kf4 61. d7 (it's
over)
0-1




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