@@ -4,8 +4,9 @@
 class Solver_0
 {
 	this(const(Game) g) {}
 	char single_step() { return 'W'; }
+	void force(char c) {}
 }
 
 class Solver_1
 {
@@ -25,8 +26,13 @@
 		char c = act(g, de[0], de[1]);
 		g.command(c);
 		return c;
 	}
+
+	void force(char c)
+	{
+		g.command(c);
+	}
 
 	Tuple!(string,int) death_move(const(Game) g)
 	{
 		string death;