Dog Sudoku Level 120 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 120 Strategy
Hard Level 120 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 120 Solution
Solution dog cells: R1C4, R2C6, R2C9, R5C2, R5C4, R6C7, R7C5, R8C3, R9C1, R9C5, R9C7.