diff --git a/lib/util.dart b/lib/util.dart
index b0f9fff..edaf5e1 100644
--- a/lib/util.dart
+++ b/lib/util.dart
@@ -30,7 +30,7 @@ class Util {
       "${index % 3}, ${(index / 3).floor()}";
 
   static Iterable<TTCState> getRow(int index, List<TTCState> data) =>
-      data.getRange(index, index + 3);
+      data.getRange(index * 3, index * 3 + 3);
   static Iterable<TTCState> getCol(int index, List<TTCState> data) => [
         data[index],
         data[index + 3],
@@ -40,7 +40,7 @@ class Util {
     if (index == 0) {
       return [data[0], data[4], data[8]];
     }
-    return [data[3], data[4], data[6]];
+    return [data[2], data[4], data[6]];
   }
 
   static TTCState checkRow(Iterable<TTCState> row) =>