Cat Sudoku Level 174 Hint
Find a colored region with only a few safe cells, then compare those cells against the row and column limits.
Cat Sudoku Level 174 Strategy
Hard Level 174 uses a 8x8 board with 8 colored regions. It starts without fixed cats, so the region shapes and no-touch rule do the work. Work from the tightest rows and regions before placing a cat.
Cat Sudoku Level 174 Solution
Solution cells: R1C6, R2C8, R3C4, R4C2, R5C5, R6C7, R7C1, R8C3.