Comunque secondo me non hai guardato bene il link che ti ho dato, alla fine e pieno di link ad articoli molto interessanti.
Poi c'è pure citato un libro:
The bitboard method for holding a board game appears to have been invented in the mid 1950's, by Arthur Samuel and was used in his checkers program. The method was published in 1959 as "Some Studies in Machine Learning Using the Game of Checkers" in the IBM Journal of Research and Development.
Guarda anche qui:
http://people.csail.mit.edu/heinz/dt/node7.html
qui:
http://www.fzibi.com/cchess/bitboards.htm

Trovato pure un libro:
http://www.amazon.com/gp/product/155...231391-5820722