Anti-knight Outside Sudoku

Anti-knight Outside Sudoku Rules

Outside Sudoku is a variation of the standard Sudoku. Some digits are given outside the grid. These digits must appear in the first three cells in the corresponding direction.

Additional Rules:

• Anti-Knight Sudoku all cells at a chess knight move (at a distance of 2 by 1) must hold different numbers.

Anti-knight Outside Sudoku question：

Anti-knight Outside Sudoku solution：