- add reversi game to games.json and sidebar.html, add screenshot

Author: TobiasMue91

data/games.json

@@ -625,5 +625,16 @@
     "aiPowered": false,
     "featured": false,
     "date": "2025-05-30"
+  },
+  {
+    "id": "reversi",
+    "title": "Reversi",
+    "description": "Play Reversi/Othello online for free. Strategic board game where you flip opponent's pieces by trapping them.",
+    "url": "games/reversi.html",
+    "screenshot": "screenshots/screenshot_209.webp",
+    "type": "game",
+    "aiPowered": false,
+    "featured": false,
+    "date": "2025-06-20"
   }
 ]

screenshots/screenshot_209.webp

@@ -294,6 +294,7 @@ <h2>Tools by ChatGPT</h2>
       <li><a href="/tools/zip_extractor.html">Zip Extractor Pro</a></li>
       <li><a href="/tools/sudoku_solver.html">Sudoku Solver</a></li>
       <li><a href="/tools/decision_wheel.html">Decision Wheel</a></li>
+      <li><a href="/games/reversi.html">Reversi</a></li>
 <!-- end -->
     </ul>
   </div>