差1邊和數獨 Wrong outside sum sudoku
規則：
規則：在空格中填入1∼9，使得每一行、列、宮中的數字都沒有重複外；標示數與該行列在本方向前3個數字和的差值為1。
rule :
Classical rules of sudoku, The clues outside the grid differ by exactly 1 from the sum of the first 3 numbers placed in the corresponding direction.
解答 result：
