There are five overlapping 6x6 grids. Within each grid, place the digits 1–6 once each in every row, column, and region. Clues outside the grids refer to the sum of the digits between two 1's in that row/column.
There are five overlapping 6x6 grids. Within each grid, place the digits 1–6 once each in every row, column, and region. Clues outside the grids refer to the sum of the digits between two 1's in that row/column.