Author: Heiner Marxen
Date: 08:38:11 11/20/00
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On November 20, 2000 at 10:36:02, Bob Durrett wrote: >On November 20, 2000 at 06:19:12, Mark Christiaens wrote: > >>I've written a program that generates a "puzzle competition". The program >>generates Lout source for 5 rounds of puzzles, together with the solution >>sheets, score sheets, ... >> >>For this, I'm using a database of mate in 1, mate in 2, ... problems from which >>I select a number of problems. Although most puzzles are from the mate in 2 >>kind, there is a large difference in subjective difficulty between one puzzle >>and the next. >> >>My question is: is there any way to evaluate how difficult a problem is (using a >>program) for a human so that I can construct a set of puzzles which are easy, >>moderate, difficult? >> >> >>Kind regards, >> >>Mark Christiaens > >Maybe a computer chess programmer would be willing to modify his program to add >the capability to measure the amount of time the program uses to find the >solution. That would not give a direct measurement of how difficult the >position would be for a human player, but might give some indication at least. Feed the EPD to "chest -b" and Chest will kindly provide acn=N, the number of nodes it did generate in the process of solving the problem. >Incidentally, you could try using a stopwatch. For mate in 2 the time will usually be much smaller than a second, so we are out of luck, here. Heiner Marxen heiner@drb.insel.de http://www.drb.insel.de/~heiner/
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