Number Blocks Sudoku

Number Blocks Sudoku is a fresh logic puzzle that blends classic Sudoku rules with block-placement strategy. Instead of filling single cells, you place number blocks on the grid — planning ahead to avoid conflicts across rows, columns, and boxes. Each level challenges you to think spatially, recover from mistakes, and choose the right piece at the right time. Hints and undo help you learn without breaking the flow. Features • 30 carefully designed levels • Smart hints and fair recovery options • Clear feedback for valid and invalid moves • No ads. No tracking. No accounts • All progress stored locally on your device Designed for focus and clarity, Number Blocks Sudoku is a calm, rewarding puzzle you can enjoy at your own pace.