Standard 2048 is played on a 16-tile grid. The "16x16" variant expands this to a massive 256-tile arena. The "hacked" element usually refers to one of three things:
This creates a continuous chain that makes merging massive numbers much easier. 3. Use the "Hacked" Features Wisely 2048 16x16 hacked
If your version doesn't have an undo button, you can sometimes "save" the state of the board in a JS object and "load" it back if you make a mistake. Strategies for the 16x16 Board Standard 2048 is played on a 16-tile grid
If you are playing a web-based version of 2048 and want to experiment with the code, you can use the browser's developer console (F12 or Inspect Element). 2048 16x16 hacked