diff --git a/domains/npuzzle/macros.py b/domains/npuzzle/macros.py
index 57f04a3..5983ec4 100644
--- a/domains/npuzzle/macros.py
+++ b/domains/npuzzle/macros.py
@@ -13,7 +13,7 @@ class learned:
 def load_learned_macros():
     """Load the set of learned macro-actions"""
     results_dir = 'results/macros/npuzzle/'
-    filename = results_dir+'clean_macros.pickle'
+    filename = results_dir+'clean_macros-set12.pickle'
     try:
         with open(filename, 'rb') as file:
             _macros = pickle.load(file)
diff --git a/experiments/npuzzle/macro_cleanup.py b/experiments/npuzzle/macro_cleanup.py
index 1859082..62eda36 100644
--- a/experiments/npuzzle/macro_cleanup.py
+++ b/experiments/npuzzle/macro_cleanup.py
@@ -6,7 +6,8 @@
 def main():
     """Combine N-Puzzle macros for different starting positions into a single file"""
     results_dir = 'results/macros/npuzzle/'
-    filenames = glob.glob(results_dir+'macro-*-results.pickle')
+    set_suffix = '-set12'
+    filenames = glob.glob(results_dir+'macro{}-n15-*-results.pickle'.format(set_suffix))
     macros = OrderedDict()
     for filename in filenames:
         row = int(filename.split('/')[-1].split('-')[-3][1:])
@@ -28,7 +29,7 @@ def main():
 
     #%% Save the results
     os.makedirs('results/macros/npuzzle/', exist_ok=True)
-    with open('results/macros/npuzzle/clean_macros.pickle', 'wb') as file:
+    with open('results/macros/npuzzle/clean_macros{}.pickle'.format(set_suffix), 'wb') as file:
         pickle.dump(macros, file)
 
 if __name__ == '__main__':
diff --git a/experiments/npuzzle/macro_search.py b/experiments/npuzzle/macro_search.py
index fa8fab6..750db06 100644
--- a/experiments/npuzzle/macro_search.py
+++ b/experiments/npuzzle/macro_search.py
@@ -22,15 +22,15 @@ def main():
                         help='Initial row for blank space')
     parser.add_argument('-c', type=int, default=0,
                         help='Initial col for blank space')
-    parser.add_argument('--max_transitions', type=lambda x: int(float(x)), default=62500,
+    parser.add_argument('--max_transitions', type=lambda x: int(float(x)), default=2000,
                         help='Maximum number of variables changed per primitive action')
-    parser.add_argument('--save_best_n', type=int, default=100,
+    parser.add_argument('--save_best_n', type=int, default=12,
                         help='Number of best macros to save')
     args = parser.parse_args()
 
     #%% Make n-puzzle and set initial blank location
     puzzle = npuzzle.NPuzzle(n=15, start_blank=(args.r, args.c))
-    tag = 'n{}-r{}-c{}'.format(args.n, *puzzle.blank_idx)
+    tag = 'set{}-n{}-r{}-c{}'.format(args.save_best_n, args.n, *puzzle.blank_idx)
 
     #%% Configure the search
     def heuristic(puz):
diff --git a/results/macros/npuzzle/clean_macros-set12.pickle b/results/macros/npuzzle/clean_macros-set12.pickle
new file mode 100644
index 0000000..d31f5a9
Binary files /dev/null and b/results/macros/npuzzle/clean_macros-set12.pickle differ