diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 62b6433..251f0e4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,6 +5,7 @@ stages:          # List of stages for jobs, and their order of execution
 
 default:
   tags:
+    - shell
     - CREMI
 
 build-job:       # This job runs in the build stage, which runs first.
diff --git a/game_test.c b/game_test.c
index 3f767cb..d6c7b3a 100644
--- a/game_test.c
+++ b/game_test.c
@@ -1163,6 +1163,14 @@ bool test_game_load(bool whoami, char** name) {
 	game_delete(g5x3w);
 	game_delete(g5x3waux);
 
+	// test for the black squares
+	game gblack = game_new(other_squares);
+	game_save(gblack, "gblack.txt");
+	game gblack2 = game_load("gblack.txt");
+	assert(game_equal(gblack, gblack2));
+	game_delete(gblack);
+	game_delete(gblack2);
+
 	return true;
 }
 /* ********** USAGE ********** */