Abstract: A puzzle board comprises a board having a recess opening at the top side thereof, a plate mounted in the recess and having a plurality of playing piece bearing regions arranged in adjacent rows, playing pieces superimposed slideably on the regions except for one of the regions being left empty to allow the playing pieces to slide on the plate for rearrangement, each of the playing pieces having a groove with an outlet and an inlet. By rearranging the playing pieces, the outlet or inlet of one of the playing pieces can be communicated selectively with the other playing pieces, and a rolling piece received in one of the grooves for moving to a target piece through the intercommunicated grooves.