Cat Sudoku Level 176 Hint
Find a colored region with only a few safe cells, then compare those cells against the row and column limits.
Cat Sudoku Level 176 Strategy
Hard Level 176 uses a 9x9 board with 9 colored regions. It starts with 1 fixed cats to anchor the solve. Work from the tightest rows and regions before placing a cat.
Cat Sudoku Level 176 Solution
Solution cells: R1C1, R2C5, R3C2, R4C8, R5C4, R6C7, R7C9, R8C3, R9C6.