diff --git a/range.c b/range.c
index 4e33cae..391bdc8 100644
--- a/range.c
+++ b/range.c
@@ -15,7 +15,8 @@
  *    cell.  Then n must equal h + v - 1.
  */
 
-/* example instance with its encoding:
+/* example instance with its encoding and textual representation, both
+ * solved and unsolved (made by thegame.solve and thegame.text_format)
  *
  * +--+--+--+--+--+--+--+
  * |  |  |  |  | 7|  |  |
@@ -34,6 +35,22 @@
  * +--+--+--+--+--+--+--+
  *
  * 7x7:d7b3e8e5c7a7c13e4d8b4d
+ *
+ * +--+--+--+--+--+--+--+
+ * |..|..|..|..| 7|..|..|
+ * +--+--+--+--+--+--+--+
+ * | 3|..|##|..|##|..| 8|
+ * +--+--+--+--+--+--+--+
+ * |##|..|..|##|..| 5|..|
+ * +--+--+--+--+--+--+--+
+ * |..|..| 7|..| 7|##|..|
+ * +--+--+--+--+--+--+--+
+ * |..|13|..|..|..|..|..|
+ * +--+--+--+--+--+--+--+
+ * | 4|..|##|..|##|..| 8|
+ * +--+--+--+--+--+--+--+
+ * |##|..| 4|..|..|##|..|
+ * +--+--+--+--+--+--+--+
  */
 
 #include <stdio.h>