Dog Sudoku Level 143 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 143 Strategy
Hard Level 143 uses a 9x9 board with 11 bones. Use the row and column dog counts first, then resolve bones with limited neighboring cells.
Dog Sudoku Level 143 Solution
Solution dog cells: R1C4, R2C2, R2C6, R2C8, R4C8, R5C3, R5C5, R6C1, R7C4, R8C1, R8C8.