diff --git a/tests/examples/yinyang-example.png b/tests/examples/yinyang-example.png
new file mode 100644
index 0000000..560a5c1
Binary files /dev/null and b/tests/examples/yinyang-example.png differ
diff --git a/tests/examples/yinyang-example.pzg b/tests/examples/yinyang-example.pzg
new file mode 100644
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--- /dev/null
+++ b/tests/examples/yinyang-example.pzg
@@ -0,0 +1,37 @@
+- type: grid
+  style: dashed
+  grid: |
+    ...
+    ...
+    ...
+- type: cells
+  grid: |
+    o*o
+    ...
+    ...
+  substitute:
+    o: pearl-black
+    '*': pearl-white
+- type: cells
+  tag: solution
+  grid: |
+    o*o
+    o*o
+    ooo
+  substitute:
+    o: pearl-black
+    '*': pearl-white
+- type: edges
+  tag: solution
+  grid: |
+    o o o o
+      | | 
+    o o o o
+      | | 
+    o o-o o
+    
+    o o o o
+  substitute:
+    '|': edge-vert
+    '-': edge-horiz
+