diff --git a/liberty-shape.lisp b/liberty-shape.lisp
new file mode 100644
index 0000000..a166cf2
--- /dev/null
+++ b/liberty-shape.lisp
@@ -0,0 +1,5 @@
+(in-package :liberty-shape)
+
+(defclass liberty-board (basic-board)
+  ((liberty-board
+    :initform nil)))
\ No newline at end of file