diff --git a/gameboard-easy.html b/gameboard-easy.php
similarity index 91%
rename from gameboard-easy.html
rename to gameboard-easy.php
index 43dbab1..e41229c 100644
--- a/gameboard-easy.html
+++ b/gameboard-easy.php
@@ -1,3 +1,12 @@
+<?php
+
+session_start();
+if (!isset($_SESSION['user'])) {
+header("Location: login.php");
+exit();
+}
+$user = $_SESSION['user'];
+?>
 <!DOCTYPE html>
 <html lang="en">
 <head>
@@ -21,7 +30,7 @@
 <div class="music-control" id="toggleMusic">🔇</div>
 
 <header class="topbar">
-  <button class="back-btn" onclick="window.location.href='mainboard.html'">←</button>
+  <button class="back-btn" onclick="window.location.href='mainboard.php'">←</button>
   <div class="right-info">
     <div class="pill"><span class="icon">⏱</span><span id="timer">60</span>s</div>
     <div class="pill"><span class="icon">⭐</span><span id="score">0</span></div>
@@ -47,9 +56,10 @@
 
     <button class="end-btn play-again" onclick="startGame()">🔁 Main Lagi</button>
     <button class="end-btn leaderboard">🏆 Lihat Leaderboard</button>
-    <button class="end-btn back-menu" onclick="window.location.href='mainboard.html'">⬅ Kembali</button>
+    <button class="end-btn back-menu" onclick="window.location.href='mainboard.php'">⬅ Kembali</button>
   </div>
 </div>
+
 <script src="assets/gameboard-easy.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/gameboard-hard.html b/gameboard-hard.php
similarity index 92%
rename from gameboard-hard.html
rename to gameboard-hard.php
index deff455..b69cb3e 100644
--- a/gameboard-hard.html
+++ b/gameboard-hard.php
@@ -1,3 +1,10 @@
+<?php
+session_start();
+if (!isset($_SESSION['user'])) {
+header("Location: login.php");
+exit();
+}
+?>
 <!DOCTYPE html>
 <html lang="en">
 <head>
@@ -9,6 +16,7 @@
 <body>
 
 <div id="countdown-overlay"></div>
+
 <audio id="bgMusic" loop src="music/music_background.mp3"></audio>
 <audio id="sfxClick" src="music/music-click.mp3"></audio>
 <audio id="sfxMatch" src="music/music-correct.mp3"></audio>
@@ -20,7 +28,7 @@
 <div class="music-control" id="toggleMusic">🔇</div>
 
 <header class="topbar">
-  <button class="back-btn" onclick="window.location.href='mainboard.html'">←</button>
+  <button class="back-btn" onclick="window.location.href='mainboard.php'">←</button>
   <div class="right-info">
     <div class="pill"><span class="icon">⏱</span><span id="timer">60</span>s</div>
     <div class="pill"><span class="icon">⭐</span><span id="score">0</span></div>
@@ -34,6 +42,7 @@
   <div class="end-box">
     <div id="endTitleDisplay" class="end-title">🎉 Selamat!</div>
     <p id="endMsgDisplay">Anda berhasil menyelesaikan permainan!</p>
+
     <div class="score-row"><span>Skor Base:</span> <span id="baseScoreEnd">0</span></div>
     <div class="score-row"><span>Time Bonus:</span> <span id="timeBonusEnd">0</span></div>
     <div class="score-row"><span>Move Bonus:</span> <span id="moveBonusEnd">0</span></div>
@@ -42,11 +51,13 @@
       <span>Total Skor:</span>
       <span id="totalScoreEnd">0</span>
     </div>
+
     <button class="end-btn play-again" onclick="startGame()">🔁 Main Lagi</button>
     <button class="end-btn leaderboard">🏆 Lihat Leaderboard</button>
-    <button class="end-btn back-menu" onclick="window.location.href='mainboard.html'">⬅ Kembali</button>
+    <button class="end-btn back-menu" onclick="window.location.href='mainboard.php'">⬅ Kembali</button>
   </div>
 </div>
+
 <script src="assets/gameboard-hard.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/gameboard-medium.html b/gameboard-medium.php
similarity index 92%
rename from gameboard-medium.html
rename to gameboard-medium.php
index a4d4f83..cea4562 100644
--- a/gameboard-medium.html
+++ b/gameboard-medium.php
@@ -1,3 +1,10 @@
+<?php
+session_start();
+if (!isset($_SESSION['user'])) {
+header("Location: login.php");
+exit();
+}
+?>
 <!DOCTYPE html>
 <html lang="en">
 <head>
@@ -21,7 +28,7 @@
 <div class="music-control" id="toggleMusic">🔇</div>
 
 <header class="topbar">
-  <button class="back-btn" onclick="window.location.href='mainboard.html'">←</button>
+  <button class="back-btn" onclick="window.location.href='mainboard.php'">←</button>
   <div class="right-info">
     <div class="pill"><span class="icon">⏱</span><span id="timer">60</span>s</div>
     <div class="pill"><span class="icon">⭐</span><span id="score">0</span></div>
@@ -35,6 +42,7 @@
   <div class="end-box">
     <div id="endTitle" class="end-title">🎉 Selamat!</div>
     <p id="endMsg">Anda berhasil menyelesaikan permainan!</p>
+
     <div class="score-row"><span>Skor Base:</span> <span id="baseScoreEnd">0</span></div>
     <div class="score-row"><span>Time Bonus:</span> <span id="timeBonusEnd">0</span></div>
     <div class="score-row"><span>Move Bonus:</span> <span id="moveBonusEnd">0</span></div>
@@ -43,11 +51,13 @@
       <span>Total Skor:</span>
       <span id="totalScoreEnd">0</span>
     </div>
+
     <button class="end-btn play-again" onclick="startGame()">🔁 Main Lagi</button>
     <button class="end-btn leaderboard">🏆 Lihat Leaderboard</button>
-    <button class="end-btn back-menu" onclick="window.location.href='mainboard.html'">⬅ Kembali</button>
+    <button class="end-btn back-menu" onclick="window.location.href='mainboard.php'">⬅ Kembali</button>
   </div>
 </div>
+
 <script src="assets/gameboard-medium.js"></script>
 </body>
 </html>
\ No newline at end of file
