Hyper Skyscraper Sudoku
Sudoku with outside clues showing how many buildings are visible. The four extra 3×3 windows must each contain every digit once.
Controls
Solve the sudoku. Each outside number counts the buildings visible from that side; taller buildings hide shorter ones. The four extra 3×3 windows must each contain every digit once.
Logic · Numbers · Deduction · Grid
Brain training · PuzGo