- add sudoku solver to tools.json and sidebar.html, add screenshot

Author: TobiasMue91

data/tools.json

@@ -1593,5 +1593,16 @@
     "aiPowered": false,
     "featured": false,
     "date": "2025-06-06"
+  },
+  {
+    "id": "sudoku_solver",
+    "title": "Sudoku Solver",
+    "description": "Solve any Sudoku puzzle instantly with our advanced AI-powered solver. Features step-by-step solving, real-time validation, and multiple difficulty levels. Free online Sudoku solver tool.",
+    "url": "tools/sudoku_solver.html",
+    "screenshot": "screenshots/screenshot_207.webp",
+    "type": "tool",
+    "aiPowered": false,
+    "featured": false,
+    "date": "2025-06-13"
   }
 ]

screenshots/screenshot_207.webp

@@ -292,6 +292,7 @@ <h2>Tools by ChatGPT</h2>
       <li><a href="/tools/graphing_calculator.html">Graphing Calculator</a></li>
       <li><a href="/tools/sober_time_tracker.html">Sober Time Tracker</a></li>
       <li><a href="/tools/zip_extractor.html">Zip Extractor Pro</a></li>
+      <li><a href="/tools/sudoku_solver.html">Sudoku Solver</a></li>
 <!-- end -->
     </ul>
   </div>