diff --git a/src/test/c/test_sudoku.c b/src/test/c/test_sudoku.c
index 92a9053..973b108 100644
--- a/src/test/c/test_sudoku.c
+++ b/src/test/c/test_sudoku.c
@@ -91,6 +91,29 @@ void test_create_playing_field_level_medium_two() {
     printf("Unit test for create_playing_field() executed.\n\n");
 }
 
+//4
+
+// Unit test for printGrid() function
+void test_printGrid() {
+    int Sudoku_grid[SIZE_OF_GAMEBORD_AXIS_X][SIZE_OF_GAMEBORD_AXIS_Y] = {
+        {5, 3, 0, 0, 7, 0, 0, 0, 0},
+        {6, 0, 0, 1, 9, 5, 0, 0, 0},
+        {0, 9, 8, 0, 0, 0, 0, 6, 0},
+        {8, 0, 0, 0, 6, 0, 0, 0, 3},
+        {4, 0, 0, 8, 0, 3, 0, 0, 1},
+        {7, 0, 0, 0, 2, 0, 0, 0, 6},
+        {0, 6, 0, 0, 0, 0, 2, 8, 0},
+        {0, 0, 0, 4, 1, 9, 0, 0, 5},
+        {0, 0, 0, 0, 8, 0, 0, 7, 9}
+    };
+
+    printf("Sudoku Grid:\n");
+    printGrid(Sudoku_grid);
+    //TEST_PASS();
+    printf("Unit test for printGrid() executed.\n\n");
+}
+
+