1 files changed, 2 insertions(+), 11 deletions(-)

M main.c

@@ 147,17 147,8 @@ GridField allowed_moves_in_column(GridField g, struct Piece p, int x) {
 GridField allowed_moves(GridField g, struct Piece p) {
   GridField allowed = 0;
 
-  for (int y = 0; y < 9 - p.height + 1; ++y) {
-    for (int x = 0; x < 9 - p.width + 1; ++x) {
-      int b = y * 9 + x;
-      GridField pf = p.field;
-
-      pf <<= b;
-      GridField mask = (g & pf) == 0;
-
-      mask <<= b;
-      allowed |= mask;
-    }
+  for (int x = 0; x < 9 - p.width + 1; ++x) {
+    allowed |= allowed_moves_in_column(g, p, x);
   }
 
   return allowed;