Dog Sudoku Level 87 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 87 Strategy
Medium Level 87 uses a 8x8 board with 8 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 87 Solution
Solution dog cells: R2C1, R2C5, R3C8, R5C4, R5C6, R6C2, R7C5, R7C8.