diff --git a/lib/hourglass.rb b/lib/hourglass.rb
index 4186b23..24dcec8 100644
--- a/lib/hourglass.rb
+++ b/lib/hourglass.rb
@@ -1,4 +1,20 @@
 
 def hourglass(matrix)
-  raise NotImplementedError, "The matrix method has not been implemented yet!"
+  row = 1
+  column = 1
+  max = nil
+  while row <= 4
+    while (column >= 1 && column <= 4)
+      sum = matrix[row][column] + matrix[row - 1][column - 1] + matrix[row - 1][column] + matrix[row - 1][column + 1] + matrix[row + 1][column - 1] + matrix[row + 1][column] + matrix[row + 1][column + 1]
+      if (max == nil || sum > max)
+        max = sum
+      end
+      column += 1
+    end
+    if column == 5
+      column = 1
+    end
+    row += 1
+  end
+  return max
 end
\ No newline at end of file
diff --git a/test/hourglass_test.rb b/test/hourglass_test.rb
index 03d7eb2..4c3b28b 100644
--- a/test/hourglass_test.rb
+++ b/test/hourglass_test.rb
@@ -10,6 +10,7 @@
 describe "Hourglass" do
   it "will return 7 for the 1st example matrix" do
     # Arrange
+    puts "test # 1"
     matrix = [
       [1, 1, 1, 0, 0, 0],
       [0, 1, 0, 0, 0, 0],
@@ -28,9 +29,10 @@
 
   it "will return 28 for the 2nd example matrix" do
     # Arrange
+    puts "test # 2"
     matrix = [
       [-9, -9, -9,  1, 1, 1],
-      [ 0,  -9, 0,  4, 3, 2],
+      [ 0, -9, 0,  4, 3, 2],
       [-9, -9, -9,  1, 2, 3],
       [ 0,  0,  8,  6, 6, 0],
       [ 0,  0,  0, -2, 0, 0],
@@ -46,6 +48,7 @@
 
   it "will return 19 for the 3rd example matrix" do
     # Arrange
+    puts "test # 3"
     matrix = [
       [ 1,  1,  1,  0, 0, 0],
       [ 0,  1,  0,  0, 0, 0],
@@ -63,7 +66,8 @@
   end
 
   it "will return 0 for a matrix of 0s" do
-    # Arrange 
+    # Arrange
+    puts "test # 4"
     matrix = [
       [ 0,  0,  0,  0, 0, 0],
       [ 0,  0,  0,  0, 0, 0],
@@ -81,15 +85,15 @@
   end
 
   it "will return 13 for a this matrix" do
-    # Arrange 
+    # Arrange
+    puts "test # 5"
     matrix = [
-      [1,  1,  1,  0,  0, 0]
-      [0,  1,  0,  0,  0, 0]
-      [1,  1,  1,  0,  0, 0]
-      [0,  9,  2, -4, -4, 0]
-      [0,  0,  0, -2,  0, 0]
-      [0,  0, -1, -2, -4, 0,]
-    ]
+      [1,  1,  1,  0,  0, 0],
+      [0,  1,  0,  0,  0, 0],
+      [1,  1,  1,  0,  0, 0],
+      [0,  9,  2, -4, -4, 0],
+      [0,  0,  0, -2,  0, 0],
+      [0,  0, -1, -2, -4, 0]]
 
     # Act
     answer = hourglass(matrix)
@@ -99,7 +103,8 @@
   end
 
   it "will return -19 for a this matrix" do
-    # Arrange 
+    # Arrange
+    puts "test # 6"
     matrix = [
       [ 0, -4, -6,  0, -7, -6],
       [-1, -2, -6, -8, -3, -1],
@@ -113,6 +118,6 @@
     answer = hourglass(matrix)
 
     # Assert
-    expect(answer).must_equal -19
+        expect(answer).must_equal -19
   end
 end
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