i2

src/latest.py

@@ -157,6 +157,11 @@ class SquareWindow:
         # Use black text for better contrast against any background
         self.canvas.create_text(center_x, center_y, text=str(number), fill="black", font=("Arial", 10))
         
+        # Draw a line segment at the bottom edge of the square (inside the square) only if size >= 25
+        if size >= 50:
+            line_y = y + size - 20  # Just above the bottom edge of the square
+            self.canvas.create_line(x, line_y, x + size, line_y, fill="black", width=1)
+        
         # Record the square's position information
         self.square_positions[number] = (x, y, size, parent_number)