diff --git a/src/beanmachine/ppl/experimental/global_inference/proposer/nuts_proposer.py b/src/beanmachine/ppl/experimental/global_inference/proposer/nuts_proposer.py
index 2a1f02c7ec..95ff76044c 100644
--- a/src/beanmachine/ppl/experimental/global_inference/proposer/nuts_proposer.py
+++ b/src/beanmachine/ppl/experimental/global_inference/proposer/nuts_proposer.py
@@ -184,6 +184,28 @@ def _combine_tree(
             right_tree.right.momentums,
             sum_momentums,
         )
+        # More robust U-turn condition
+        # https://discourse.mc-stan.org/t/nuts-misses-u-turns-runs-in-circles-until-max-treedepth/9727
+        if not turned_or_diverged and right_tree.num_proposals > 1:
+            extended_sum_momentums = {
+                node: left_tree.sum_momentums[node] + right_tree.left.momentums[node]
+                for node in sum_momentums
+            }
+            turned_or_diverged = self._is_u_turning(
+                left_tree.left.momentums,
+                right_tree.left.momentums,
+                extended_sum_momentums,
+            )
+        if not turned_or_diverged and left_tree.num_proposals > 1:
+            extended_sum_momentums = {
+                node: right_tree.sum_momentums[node] + left_tree.right.momentums[node]
+                for node in sum_momentums
+            }
+            turned_or_diverged = self._is_u_turning(
+                left_tree.right.momentums,
+                right_tree.right.momentums,
+                extended_sum_momentums,
+            )
 
         return _Tree(
             left=left_tree.left,