Anti-King Hyper Frame Sudoku
Sudoku with sums for the first three cells on every edge. Cells that touch as a king moves cannot contain the same digit. The four extra 3×3 windows must each contain every digit once.
Controls
Solve the sudoku. Each outside number is the sum of the nearest three cells in that row or column.
Logic · Numbers · Deduction · Grid
Brain training · PuzGo