Dog Sudoku Level 135 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 135 Strategy
Hard Level 135 uses a 8x8 board with 10 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 135 Solution
Solution dog cells: R1C1, R1C5, R2C7, R3C2, R5C2, R5C5, R6C7, R7C1, R8C5, R8C7.