1 files changed, 1 insertions, 1 deletions
diff --git a/Node.h b/Node.h
index 64c5b2b..9685141 100644
--- a/Node.h
+++ b/Node.h
@@ -33,7 +33,7 @@ protected:
 	Net * output = nullptr;
 
 protected:
-	int min_inputs = 1;
+	int min_inputs = 2; // at least 2 inputs for most gates
 	int max_inputs = -1; // unlimited
 
 public: