Cat Sudoku Level 194 Hint
Look for a region whose legal cells are squeezed by two or more neighboring rows. High-level puzzles often move through exclusion, not obvious singles.
Cat Sudoku Level 194 Strategy
Expert Level 194 uses a 9x9 board with 9 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 194 Solution
Solution cells: R1C1, R2C9, R3C5, R4C7, R5C4, R6C2, R7C8, R8C6, R9C3.