Using both quasiphysical and quasisociological methods, in conjunction with
an inheriting strategy, a new way strategy and a pardon strategy was propo
sed for efficiently solving the SAT problem, An intuitive explanation is gi
ven for the Bart Selman random walk strategy. A new algorithm, Solar, was d
evised by combining these strategies. The new algorithm is shown to be both
faster and stabler than the heretofore best algorithm.