Dog Sudoku Level 177 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 177 Strategy
Hard Level 177 uses a 9x9 board with 10 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 177 Solution
Solution dog cells: R1C1, R2C6, R2C8, R3C1, R3C3, R4C9, R5C5, R7C4, R9C1, R9C8.