Cat Sudoku Level 30 Hint
Find a colored region with only a few safe cells, then compare those cells against the row and column limits.
Cat Sudoku Level 30 Strategy
Easy Level 30 uses a 7x7 board with 7 colored regions. It starts with 2 fixed cats to anchor the solve. Work from the tightest rows and regions before placing a cat.
Cat Sudoku Level 30 Solution
Solution cells: R1C3, R2C7, R3C1, R4C4, R5C6, R6C2, R7C5.