Author: Frank Phillips
Date: 07:12:43 01/10/99
Having concentrated more on the search and simply getting my chess program working, my static evaluation function has grown in an adhoc fashion. It contains the usual terms – two bishops, no bishop and pawns on both sides, passed pawns, connected passed pawns, outside passed pawns, doubled pawns, isolated pawns, rook on the seventh, rook on open file, and so on – but I have no idea what the relative difference these all make let alone the importance of their relative values. Clearly there are too many variables for rigorous testing. Not a new problem. Any advice? Somewhat amusingly the program has taken to flinging its h and a- pawns forward in the style of the rubbish I remember from the seventies. Not quite the Kh8 style “null move”, but no doubt similar.
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