Author: Ed Trice
Date: 10:31:56 12/31/03
Go up one level in this thread
This was the Qh5+!! sacrifice, correct? >Work on my chess playing program Symbolic continues with the integration of its >Lisp interpreter. For the program to live up to its name, it has to be able to >play decent chess by means of high level pattern analysis and planning, and so >the need for Lisp. > >Symbolic's Chess Lisp is a subset of Common Lisp plus a significant number of >chess specific intrinsic functions that directly connect to the C++ code. This >permits the Lisp program running the search to perform low level tasks (e.g., >move generation, bitboards, and attack table management) at high speed. Using >Lisp opens up the chess programming domain to all sorts of interesting weapons >gleaned from the AI arsenal. > >Wilkin's MacLisp program Paradise solved WCSAC.0398: > >[D] 2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - 0 1 > >using only 109 search nodes. However, it took about 45 minutes to do the >search. > >Given that the hardware has sped up by about a factor of 100 in the past 20+ >years since Paradise and that Symbolic does the low level tasks in native code, >I hope that a more complete version of my program can handle the above in under >one second on modest hardware. > >There is still a very long road ahead.
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