Step by Step Problems No.6/Answer

Step 0              Step 1              Step 2              Step 3              Step 4
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |       |   |       |       |   |       |       |   |XXX|XXX|       |   |       |XXX|XXX|
+       +---+---+   +       +---+---+   +       +---+---+   +---+---+---+---+   +---+---+---+---+
|       |       |   |       |       |   |       |       |   |       |       |   |       |       |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +       +---+---+   +       +---+---+
|   |   |XXX|XXX|   |   |XXX|XXX|   |   |XXX|XXX|   |   |   |       |   |   |   |       |   |   |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |
+---+---+   +   +   +---+---+   +   +   +---+---+   +   +   +---+---+   +   +   +---+---+   +   +
|       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+

Step 5              Step 6              Step 7              Step 8              Step 9
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |       |   |       |       |   |       |       |   |       |       |   |       |       |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |XXX|XXX|   |       |   |XXX|   |       |   |   |   |       |   |   |   |       |   |   |
+       +---+---+   +       +---+---+   +       +---+---+   +       +---+---+   +       +---+---+
|       |   |   |   |       |XXX|   |   |       |XXX|XXX|   |       |   |XXX|   |       |   |   |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+   +---+   +---+---+   +   +
|       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |
+---+---+   +   +   +---+---+   +   +   +---+---+   +   +   +---+---+---+   +   +---+---+---+---+
|       |   |   |   |       |   |   |   |       |   |   |   |       |XXX|   |   |       |XXX|XXX|
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+

Step 10             Step 11             Step 12             Step 13             Step 14
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |       |   |       |       |   |       |       |   |       |       |   |       |       |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |   |   |   |       |   |   |   |XXX|XXX|   |   |   |   |XXX|XXX|   |   |   |   |XXX|XXX|
+       +---+---+   +       +---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |
+---+---+   +   +   +---+---+   +   +   +       +   +   +   +       +   +   +   +       +   +   +
|       |   |   |   |XXX|XXX|   |   |   |       |   |   |   |       |   |   |   |       |   |   |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|XXX|XXX|       |   |       |       |   |       |       |   |       |       |   |       |       |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+

Step 15             Step 16             Step 17             Step 18             Step 19
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|       |       |   |       |       |   |       |       |   |       |       |   |       |       |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+
|   |   |   |XXX|   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
+---+---+   +---+   +---+---+   +   +   +---+---+   +   +   +---+---+   +   +   +---+---+   +   +
|       |   |   |   |       |   |   |   |       |   |   |   |       |   |   |   |XXX|XXX|   |   |
+       +---+   +   +       +---+---+   +       +---+---+   +       +---+---+   +---+---+---+---+
|       |XXX|   |   |       |XXX|XXX|   |       |       |   |       |       |   |       |       |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +       +---+---+
|       |       |   |       |       |   |       |XXX|XXX|   |XXX|XXX|       |   |       |       |
+---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+   +---+---+---+---+