diff --git a/src/main/java/LightBoard.java b/src/main/java/LightBoard.java
index fe405ab..66087e2 100644
--- a/src/main/java/LightBoard.java
+++ b/src/main/java/LightBoard.java
@@ -11,6 +11,7 @@ public class LightBoard
   public LightBoard(int numRows, int numCols)
   {
     /* to be implemented in part (a) */
+    lights = new boolean[numRows][numCols];
     int index = 0;
     for(int i = 0; i < numRows; i++){
       while(i < numCols){
@@ -34,9 +35,9 @@ public boolean evaluateLight(int row, int col)
       for(int i = 0; i < col; i++)
         if(lights[row][i]) count++;
      if(lights[row][col]){
-       return (count % 2 != 0);
+       if(count % 2 == 0) return false;
        } else if(!lights[row][col]) 
-         return count % 3 == 0;
+         if(count % 3 == 0) return true;
      return lights[row][col];