diff --git a/benchmark/problem_stats.py b/benchmark/problem_stats.py
index 3178c1fb8..7358a3827 100755
--- a/benchmark/problem_stats.py
+++ b/benchmark/problem_stats.py
@@ -182,7 +182,12 @@ def analyze_exercise_solutions(dirs=None, topn=None, copy_hard_set=False):
 
     print(f"Total exercises solved at least once: {solved_at_least_once}")
     print(f"Never solved by any model: {solved_by_none}")
-    print(f"Solved by all models: {solved_by_all}")
+    if solved_by_none > 0:
+        print("\nExercises never solved by any model:")
+        unsolved = [ex for ex, models in exercise_solutions.items() if not models]
+        for ex in sorted(unsolved):
+            print(f"  {ex}")
+    print(f"\nSolved by all models: {solved_by_all}")
     print(
         f"Total exercises: {len(all_exercises)} = {solved_by_none} (none) + {solved_by_all} (all) +"
         f" {len(all_exercises) - solved_by_none - solved_by_all} (some)"