--- queensgui/src/solution.h	2010/04/23 05:57:28	655
+++ queensgui/src/solution.h	2010/04/23 06:04:54	656
@@ -46,7 +46,15 @@
 
 
 
-    bool operator ==(const Solution& sol);
+    //bool operator ==(const Solution& sol);
+	bool operator ==(const Solution& s)
+	{
+    	const Solution& sol = dynamic_cast<const Solution&>(s);
+	    for (int i=0; i<m_size; i++)
+    	    if (m_matrix[i] != sol.m_matrix[i])
+        	    return false;
+	    return true;
+	}
 
     Solution* copy();