diff --git a/StupidIAconnectFour.php b/StupidIAconnectFour.php
new file mode 100644
index 0000000..c196f7b
--- /dev/null
+++ b/StupidIAconnectFour.php
@@ -0,0 +1,19 @@
+<?php
+/*
+* stupid IA for battle ship
+* choose by random a free column
+*/
+$in=file_get_contents('php://input');
+$params=json_decode($in, TRUE);
+$grid=$params['grid'];
+$colAvailable=array();
+
+for($i=0;$i<7;$i++){
+  if($grid[5][$i] == ""){
+    $colAvailable[]=$i;
+  }
+}
+shuffle($colAvailable);
+echo $colAvailable[0];
+die;
+