I have just noticed that there is a mistake in the example code for library(tentative_constraints), which makes the code loop instead of computing solutions to large n-queens problems, as intended... http://eclipse-clp.org/doc/bips/lib/tentative_constraints/index.html If anyone has been discouraged from using the library because of the buggy example, please try again. The library lib(tentative) and lib(tentative_constrains) provide support for the use of local search methods within ECLiPSe. To correct the example, please replace the line vs_worst(Vars, X), by vs_random_worst(Vars, X), With this change, it will successfully solve 1000s of queens. -- JoachimReceived on Tue Dec 02 2008 - 03:16:50 CET
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