diff --git a/Activity_PHP/checkerboard/damier.css b/Activity_PHP/checkerboard/damier.css
deleted file mode 100644
index 181c1f0..0000000
--- a/Activity_PHP/checkerboard/damier.css
+++ /dev/null
@@ -1,20 +0,0 @@
-body {
-    background-color: gray;
-}
-
-td {
-    width: 50px;
-    height: 50px;
-}
-
-table { 
-    border-collapse:collapse;
-}
-
-.n {
-    background-color: black;
-}
-
-.b {
-    background-color: white;
-}
\ No newline at end of file
diff --git a/Activity_PHP/checkerboard/damier.php b/Activity_PHP/checkerboard/damier.php
deleted file mode 100644
index 04c93f4..0000000
--- a/Activity_PHP/checkerboard/damier.php
+++ /dev/null
@@ -1,20 +0,0 @@
-<!DOCTYPE html>
-<html lang="fr">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Damier</title>
-    <link rel="stylesheet" href="damier.css">
-</head>
-<body>
-    <form method="post" action="damier2.php">
-        <label for="ligne">ligne</label>
-        <input type="text" name="ligne" require>
-
-        <label for="colum">colone</label>
-        <input type="text" name="colum" require>
-
-        <button type="submit">ok</button>
-    </form>
-</body>
-</html>
\ No newline at end of file
diff --git a/Activity_PHP/checkerboard/damier2.php b/Activity_PHP/checkerboard/damier2.php
deleted file mode 100644
index 0940535..0000000
--- a/Activity_PHP/checkerboard/damier2.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<!DOCTYPE html>
-<html lang="fr">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Damier</title>
-    <link rel="stylesheet" href="damier.css">
-</head>
-<body>
-    <table>
-    <?php 
-
-    $ligne = $_POST['ligne'];
-    $colone = $_POST['colum'];
-    $color = 'b';
-
-    for ($i=0; $i<$ligne ; $i++) { 
-        echo("<tr>");
-        for ($j=0; $j<$colone ; $j++) { 
-            if ($color == 'b') {
-                $color = 'n';
-            } else {
-                $color = 'b';
-            }
-            echo("<td class='$color'></td>");
-            
-        }
-        echo("</tr>");
-        if ($i % 2 == 0) {
-            $color = 'n';
-        } else {
-            $color = 'b';
-        }
-    
-    }
-
-    ?>
-    </table>
-    
-</body>
-</html>
\ No newline at end of file
diff --git a/Activity_PHP/checkerboard/index.php b/Activity_PHP/checkerboard/index.php
new file mode 100644
index 0000000..e87cc16
--- /dev/null
+++ b/Activity_PHP/checkerboard/index.php
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Checkerboard</title>
+    <link rel="stylesheet" href="style.css">
+</head>
+<body>
+    <form method="post">
+        <label for="row">Rows:</label>
+        <input type="number" name="row" required>
+
+        <label for="column">Columns:</label>
+        <input type="number" name="column" required>
+
+        <button type="submit" name="submit">Validate</button>
+    </form>
+    <table>
+        <?php 
+        if ($_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST['submit'])) {
+            $row = $_POST['row'];
+            $column = $_POST['column'];
+            $color = 'b';
+
+            for ($i=0; $i<$row ; $i++) { 
+                echo("<tr>");
+                for ($j=0; $j<$column ; $j++) { 
+                    if ($color == 'b') {
+                        $color = 'n';
+                    } else {
+                        $color = 'b';
+                    }
+                    echo("<td class='$color'></td>");
+                }
+                echo("</tr>");
+                if ($i % 2 == 0) {
+                    $color = 'n';
+                } else {
+                    $color = 'b';
+                }
+            }
+        }
+        ?>
+    </table>
+</body>
+</html>
diff --git a/Activity_PHP/checkerboard/style.css b/Activity_PHP/checkerboard/style.css
new file mode 100644
index 0000000..8ec70ae
--- /dev/null
+++ b/Activity_PHP/checkerboard/style.css
@@ -0,0 +1,38 @@
+body {
+    font-family: Arial, sans-serif;
+    text-align: center;
+    align-items: center;
+    height: 100vh;
+    margin: 0;
+}
+
+form {
+    margin-bottom: 20px;
+}
+
+form input[type="number"],
+form button {
+    margin: 5px;
+    padding: 8px;
+    border-radius: 5px;
+    border: 1px solid #ccc;
+}
+
+table {
+    border-collapse: collapse;
+    margin: 0 auto;
+}
+
+td {
+    width: 50px;
+    height: 50px;
+    border: 1px solid #ccc;
+}
+
+.n {
+    background-color: #000;
+}
+
+.b {
+    background-color: #fff;
+}
\ No newline at end of file
