diff --git a/src/main/java/edu/rpi/legup/puzzle/binary/rules/OneOrZeroCaseRule.java b/src/main/java/edu/rpi/legup/puzzle/binary/rules/OneOrZeroCaseRule.java
index 21f0b3cbb..192317e9f 100644
--- a/src/main/java/edu/rpi/legup/puzzle/binary/rules/OneOrZeroCaseRule.java
+++ b/src/main/java/edu/rpi/legup/puzzle/binary/rules/OneOrZeroCaseRule.java
@@ -23,7 +23,7 @@ public OneOrZeroCaseRule() {
 
     @Override
     public String checkRuleRaw(TreeTransition transition) {
-        List<TreeTransition> childTransitions = transition.getParents().get(3).getChildren();
+        List<TreeTransition> childTransitions = transition.getParents().get(0).getChildren();
         if (childTransitions.size() != 2) {
             return super.getInvalidUseOfRuleMessage() + ": This case rule must have 2 children.";
         }
diff --git a/src/main/java/edu/rpi/legup/puzzle/binary/rules/SurroundPairDirectRule.java b/src/main/java/edu/rpi/legup/puzzle/binary/rules/SurroundPairDirectRule.java
index 232870977..7e0caff73 100644
--- a/src/main/java/edu/rpi/legup/puzzle/binary/rules/SurroundPairDirectRule.java
+++ b/src/main/java/edu/rpi/legup/puzzle/binary/rules/SurroundPairDirectRule.java
@@ -21,7 +21,26 @@ public SurroundPairDirectRule() {
     
     @Override
     public String checkRuleRawAt(TreeTransition transition, PuzzleElement puzzleElement) {
-        return null;
+        BinaryBoard board = (BinaryBoard) transition.getBoard();
+        BinaryBoard origBoard = (BinaryBoard) transition.getParents().get(0).getBoard();
+        ContradictionRule contraRule = new ThreeAdjacentContradictionRule();
+
+
+        BinaryCell cell = (BinaryCell) board.getPuzzleElement(puzzleElement);   
+
+        if (cell.getType() == BinaryType.UNKNOWN) {
+            return "Only ONE or ZERO cells are allowed for this rule!";
+        }
+
+            BinaryBoard modified = origBoard.copy();
+            modified.getPuzzleElement(puzzleElement).setData(BinaryType.WHITE.toValue());
+            if (contraRule.checkContradictionAt(modified, puzzleElement) != null) {
+                return "Black cells must be placed in a region of black cells!";
+            }
+            return null;
+        
+        return super.getNoContradictionMessage() + ": " + this.NO_CONTRADICTION_MESSAGE;
+    
     }
 
     @Override