So he wrote a small sub-program alongside it operating in the background, and all it did was score the probability that a given board configuration would likely lead to a winning board versus a losing board after every move.
Så han skrev et mindre  under-program ved siden af, der kørte i baggrunden og alt det gjorde, var at udregne sandsynligheden for, at en given stilling på  pladen formentlig ville føre til et vindende spil i forhold til et tabende spil for hvert træk.