diff --git a/format.c b/format.c
new file mode 100644
index 0000000..cffbbcb
--- /dev/null
+++ b/format.c
@@ -0,0 +1,17 @@
+#include "all.h"
+
+int main(){
+    int board1[9][9] = 
+        {{8, 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}};
+    struct Sudoku s;
+    sudokufromArray(board1, &s);
+    sudokuPrint(s);
+}
\ No newline at end of file