Anti-knight Anti-king Sudoku:
Anti-knight Sudoku + Anti-king Sudoku
Rules of Anti Knight Sudoku 8x8 Puzzle
Place a digit from 1 to 8 into each of the empty cells so that each digit appears exactly once in each row, column and 2x4 outlined box. Additionally, no two identical digits can be a chess knight‘s move away from each other (as shown in the diagram).
Anti-king rules: no two squares that touch either horizontally, vertically or diagonally can have the same digit. (As in, no two squares a chess king can move between in a single move.)
Anti-Knight Sudoku is a variation of Sudoku where no two numbers that are a knight's move away from each other can be the same. A knight's move is two squares in one direction and one square in another direction, like the L shape.