The Intel Pieces can be found in the following levels. There are a total of 
thirty Intel Pieces.
  Level 2: 2 Intel Pieces 
  Level 4: 2 Intel Pieces 
  Level 5: 3 Intel Pieces 
  Level 6: 2 Intel Pieces 
  Level 7: 2 Intel Pieces 
  Level 9: 3 Intel Pieces 
  Level 10: 2 Intel Pieces 
  Level 12: 2 Intel Pieces 
  Level 13: 3 Intel Pieces 
  Level 14: 2 Intel Pieces 
  Level 16: 2 Intel Pieces 
  Level 17: 1 Intel Piece 
  Level 18: 2 Intel Pieces 
  Level 19: 2 Intel Pieces