The.

mastermind/src/mastermind/Main.java

@@ -370,6 +370,7 @@ class Game extends World {
 
     // Attempt to add the nth dot option to the incomplete guess.
     Game addDot(int choice) {
+        System.out.println("tying to ");
         return new Game(
             this.conf,
             this.solution,
@@ -430,7 +431,7 @@ class Game extends World {
         return new RectangleImage(
             this.solution.getW(),
             2 * Dot.r,
-            OutlineMode.SOLID,
+            OutlineMode.OUTLINE,
             Color.BLACK
         );
     }
@@ -514,10 +515,15 @@ class ConsIncompleteGuess implements ILoGuess {
     }
 
     public ILoGuess addToIncomplete(Dot dot, int limit) {
+        System.out.println("Here");
         return new ConsIncompleteGuess(
-            this.guessSoFar.tryAppend(dot, limit),
+            new IncompleteGuess(new ConsDot(dot, new MtDot())),
             this.nxt
         );
+        // return new ConsIncompleteGuess(
+        //     this.guessSoFar.tryAppend(dot, limit),
+        //     this.nxt
+        // );
     }
 }
 
@@ -539,12 +545,15 @@ class ConsPlaceholderGuess implements ILoGuess {
 
     // Fill a list with n placeholders.
     static ILoGuess mkN(int n) {
-        if (n == 0) return new MtGuess();
+        if (n == 0) return new ConsIncompleteGuess(
+            new IncompleteGuess(new MtDot()),
+            new MtGuess()
+        );
         return new ConsPlaceholderGuess(mkN(n - 1));
     }
 
     public ILoGuess addToIncomplete(Dot dot, int limit) {
-        return this.nxt.addToIncomplete(dot, limit);
+        return new ConsPlaceholderGuess(this.nxt.addToIncomplete(dot, limit));
     }
 }