Dog Sudoku Level 160 Hint
Find a bone with only two or three available neighboring cells, then test those cells against the row count, column count, and no-touch rule.
Dog Sudoku Level 160 Strategy
Hard Level 160 uses a 9x9 board with 11 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 160 Solution
Solution dog cells: R1C1, R2C4, R3C9, R4C4, R4C6, R5C1, R5C8, R6C4, R7C6, R9C1, R9C4.