Dog Sudoku Level 68 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 68 Strategy
Medium Level 68 uses a 8x8 board with 9 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 68 Solution
Solution dog cells: R2C1, R2C7, R3C3, R3C5, R4C1, R5C7, R6C2, R7C7, R8C3.