diff --git a/problems/empty-spaces/problem.py b/problems/empty-spaces/problem.py
index 8a11f40..bc761cf 100644
--- a/problems/empty-spaces/problem.py
+++ b/problems/empty-spaces/problem.py
@@ -8,7 +8,7 @@
 #   | sed -nr 's/^.*\/([a-zA-Z]*)\.nix.*$/\1/p'
 #   | sort -u
 
-
+star_coords = [(1, 9), (1, 10), (2, 9), (2, 10), (3, 8), (3, 9), (3, 10), (3, 11), (4, 8), (4, 9), (4, 10), (4, 11), (5, 7), (5, 8), (5, 9), (5, 10), (5, 11), (5, 12), (6, 7), (6, 8), (6, 9), (6, 10), (6, 11), (6, 12), (7, 7), (7, 8), (7, 9), (7, 10), (7, 11), (7, 12), (8, 1), (8, 2), (8, 3), (8, 4), (8, 5), (8, 6), (8, 7), (8, 8), (8, 9), (8, 10), (8, 11), (8, 12), (8, 13), (8, 14), (8, 15), (8, 16), (8, 17), (8, 18), (9, 2), (9, 3), (9, 4), (9, 5), (9, 6), (9, 7), (9, 8), (9, 9), (9, 10), (9, 11), (9, 12), (9, 13), (9, 14), (9, 15), (9, 16), (9, 17), (10, 4), (10, 5), (10, 6), (10, 7), (10, 8), (10, 9), (10, 10), (10, 11), (10, 12), (10, 13), (10, 14), (10, 15), (11, 5), (11, 6), (11, 7), (11, 8), (11, 9), (11, 10), (11, 11), (11, 12), (11, 13), (11, 14), (12, 5), (12, 6), (12, 7), (12, 8), (12, 9), (12, 10), (12, 11), (12, 12), (12, 13), (12, 14), (13, 4), (13, 5), (13, 6), (13, 7), (13, 8), (13, 9), (13, 10), (13, 11), (13, 12), (13, 13), (13, 14), (13, 15), (14, 4), (14, 5), (14, 6), (14, 7), (14, 8), (14, 9), (14, 10), (14, 11), (14, 12), (14, 13), (14, 14), (14, 15), (15, 3), (15, 4), (15, 5), (15, 6), (15, 7), (15, 12), (15, 13), (15, 14), (15, 15), (15, 16), (16, 3), (16, 4), (16, 5), (16, 13), (16, 14), (16, 15), (16, 16), (17, 2), (17, 3), (17, 4), (17, 15), (17, 16), (17, 17), (18, 2), (18, 17)]
 class Problem(problem_utils.Problem):
     def __init__(self, seed=0) -> None:
         super().__init__(seed)