diff --git a/shudu.cpp b/shudu.cpp
new file mode 100644
index 0000000..04b8617
--- /dev/null
+++ b/shudu.cpp
@@ -0,0 +1,34 @@
+#include <stdio.h>
+
+void putboard(int board[][9])
+{
+    printf("|-----------------------|\n");
+    for (int i = 0; i < 9; i++)
+    {
+        printf("|");
+        for (int j = 0; j < 9; j++)
+        {
+            printf("%2d", board[i][j]);
+            if (j == 2 || j == 5 || j == 8)
+                printf(" |");
+        }
+        printf("\n");
+        if (i == 2 || i == 5 || i == 8)
+            printf("|-----------------------|\n");
+    }
+}
+
+int main()
+{
+    int board[9][9] = {{5,3,4,6,7,8,9,1,2},
+                       {6,7,2,1,9,5,3,4,8},
+                       {1,9,8,3,4,2,5,6,7},
+                       {8,5,9,7,6,1,4,2,3},
+                       {4,2,6,8,5,3,7,9,1},
+                       {7,1,3,9,2,4,8,5,6},
+                       {9,6,1,5,3,7,2,8,4},
+                       {2,8,7,4,1,9,6,3,5},
+                       {3,4,5,2,8,6,1,7,9}};
+    putboard(board);
+    return 0;
+}
\ No newline at end of file