Smarter way of looking at empty columns

strategy.py

@@ -54,16 +54,29 @@ class State:
         for col in range(COLUMNS):
             yield self.nrows() - self.colskip(col)
 
+
+    def hole_score(self):
+        score = 0
+        for col in range(COLUMNS):
+            for row in range(self.nrows()):
+                i = row * COLUMNS + col
+                if self.blocks[i] != NOBLOCK:
+                    break
+                score += row + 1
+        return score
+
     def score(self, points, moves, prev):
         frag = self.fragmentation()
         colsizes = list(self.colsizes())
-        mincol = min(colsizes)
+        #mincol = min(colsizes)
         maxcol = max(colsizes)
-        colsize_score = maxcol, colsizes.count(maxcol), -mincol
+        colsize_score = maxcol, colsizes.count(maxcol) #, -mincol
         #colsize_score = tuple(sorted(colsizes, reverse=True))
         #if prev.nrows() >= 6:
         #    return colsize_score, -points, frag, len(moves)
 
+        colsize_score = maxcol, self.hole_score()
+
         prev_colsize = max(prev.colsizes())
 
         if prev_colsize >= COLSIZE_PRIO: