A new variant: Autophilic digits are extreme homebodies, and while at home, they love to stay in their rooms, never leaving for any reason.
Rules:
Normal Sudoku rules apply.
Autophilia: In each box, numbered left to right, top to bottom, the box number appears in the row or column of its value. e.g. In box 1, the digit 1 appears in row 1 and/or column 1, and so on in boxes 2-9.
Estimated difficulty: 1 out of 5
Solve on SudokuPad