Cat Sudoku Level 234 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 234 Strategy
Master Level 234 uses a 10x10 board with 10 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 234 Solution
Solution cells: R1C8, R2C1, R3C10, R4C7, R5C5, R6C9, R7C4, R8C2, R9C6, R10C3.