Author: Dann Corbit
Date: 18:32:22 07/20/04
Go up one level in this thread
On July 20, 2004 at 16:37:18, Steven Edwards wrote:
>Symbolic: Status report 2004.07.20
>
>Symbolic's underlying toolkit has two new classes for connecting to other
>programs: CTMediator and CTXboard.
>
>CTMediator is for running automated games. Initially, the class will support
>only a single, N-game match per invocation; eventually it will be able to run an
>entire tournament across the network. Also, it will use the xboard protocol but
>will likely have additional protocols added later. Crafty will be Symbolic's
>initial automated sparring partner, just as it was Spector's last sparring
>partner back in 1994.
>
>CTXboard is an interfacing class between xboard and the rest of the toolkit.
>Instead of adding xboard commands to the current interactive command processor
>(as is done in some other programs like Crafty), an instance of CTXboard will
>replace an instance of CTCommProc and have its own xboard specific command
>interpreter. This provides a good design firewall between two changing command
>sets, one of which I do not control. The CTXboard class may also serve as a
>template of sort for additional protocols; one of these would be the CTICS class
>for ICS play.
>
>Auto competition run by the mediator is indicated by the -Mediator command line
>option; the -Xboard option selects the xboard interface to Symbolic. If neither
>option is present, the program runs a single instance of the interactive command
>processor (CTCommProc) attached to the standard I/O streams.
>
>Testing the CTOppo class (opportunity search; i.e, ponder search) is also being
>performed.
>
>Structurally, the CTCommProc, CTMediator, CTOppo, and CTXboard classes are
>similar in that thay all inherit the CTContext class as a direct base class.
>CTContext is the class that keeps track of the current values of the position,
>the game, the control flags, the opening library interface, the tablebase cache
>set, and various other objects. The idea is keep the toolkit design reasonably
>well compartmentalized without it getting too bulky.
>
>At this point, I've gotten the CTXboard class to the point where it connects
>reliably to xboard using xboard 's protocol version 2. Enough of the
>functionality is present to run automated matches; however, I haven't yet fully
>implemented the ponder features. As proof, here's some sample output, verbatim,
>from xboard running under the X11 package under Mac OS X 10.3 on a 700 MHz G3
>PowerPC notebook:
>
>[Event "Computer chess game"]
>[Site "jenn.local"]
>[Date "2004.07.18"]
>[Round "12"]
>[White "Crafty-19.13"]
>[Black "Symbolic"]
>[Result "0-1"]
>[TimeControl "300"]
>
>1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. exd5 exd5 6. Bb5 Bd6 7. O-O Ne7
>8. dxc5 Bxc5 9. Nb3 Bd6 10. Re1 O-O 11. Bg5 Bg4 12. Be2 h6 13. Bxe7 Bxe7
>14. h3 Bh5 15. c3 Bg6 16. Bd3 a5 17. Bxg6 fxg6 18. a4 Kh7 19. Nbd4 Qd7 20.
>Ne6 Rf6 21. Qe2 Bd6 22. Rad1 Nd8 23. Ned4 Qxa4 24. Nb5 Qa2 25. c4 Bb4 26.
>Nc7 Bxe1 27. Nxa8 Bb4 28. Rxd5 Ne6 29. Qc2 Nf4 30. Rd7 Nxh3+ 31. Kh2 Ng5
>32. Nxg5+ hxg5 33. Rxb7 Bd6+ 34. g3 Qa1 35. Qe2 Rf8 36. Nb6 Bc5 37. Nd7
>Rxf2+ 38. Qxf2 Bxf2 39. Nf6+ Kh6 40. Ng4+ Kh5 41. Nxf2 Qf1 42. Rf7 g4 43.
>b3 Qe2 44. Kg2 g5 45. Rf5 Qe3 46. Rb5 Qf3+ 47. Kf1 Kg6 48. Rxa5 Qxb3 49.
>Re5 Qxc4+ 50. Kg2 Qc6+ 51. Re4 Kf5 52. Kg1 Qxe4 53. Nxe4 Kxe4 54. Kf2 Kd3
>55. Kf1 Ke3 56. Ke1 Kf3
>{White resigns} 0-1
A win against crafty even at blitz speed is impressive at this early stage of
development. Is this game a fluke or representitive of Symbolic's ability?
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