Dog Sudoku Level 52 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 52 Strategy
Medium Level 52 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 52 Solution
Solution dog cells: R1C1, R3C1, R4C3, R5C1, R5C8, R6C3, R7C6, R8C8.