Cat Sudoku Level 201 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 201 Strategy
Expert Level 201 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 201 Solution
Solution cells: R1C7, R2C2, R3C5, R4C9, R5C6, R6C1, R7C4, R8C8, R9C3.