Contribute correction: Tetris

  _____      ___      ______   _    _   
 /  ___||   / _ \\   /_____// | || | || 
| // __    / //\ \\  `____ `  | || | || 
| \\_\ || |  ___  || /___//   | \\_/ || 
 \____//  |_||  |_|| `__ `     \____//  
  `---`   `-`   `-`  /_//       `---`   
                     `-`