diff --git a/src/go/engine.py b/src/go/engine.py
--- a/src/go/engine.py
+++ b/src/go/engine.py
@@ -64,7 +64,7 @@ class Engine:
 		startDepth=1 if colorIn==colorOut else 2
 		self._g.toMove=colorIn
 
-		for i in range(startDepth,10,2):
+		for i in range(startDepth,6,2):
 			seq=self.dfs(state2,i)
 			if seq:
 				seq.reverse()