diff --git a/apps/recorder/sokoban_levels.txt b/apps/recorder/sokoban_levels.txt
index 0d0bcc6d00..000b9085e3 100644
--- a/apps/recorder/sokoban_levels.txt
+++ b/apps/recorder/sokoban_levels.txt
@@ -1,3 +1,14 @@
+# Map legend:
+#
+#   white space is clear back ground
+#   X = black back ground
+#   # = wall
+#   . = block destination 
+#   @ = starting position
+#   $ = movable block
+
+
+
 XXXXXXXXXXXXXXXXXXXX
 XXXXXXXXXXXXXXXXXXXX
 XXXXXXXXXXXXXXXXXXXX