Once one or all blocks described in a line's clue have been placed, we can add Xs to the empty cells to add information to the perpendicular lines.
📝 Example: if we have a row with the clue "2 2 5", and the block of 5 squares has already been filled a few squares from the end, we can place an X at either end of that block. As it's the final block in the clue, we can also fill all the empty squares to the right of it with Xs.
📝 Example: if we have a row with the clue "2 2 5", and the block of 5 squares has already been filled a few squares from the end, we can place an X at either end of that block. As it's the final block in the clue, we can also fill all the empty squares to the right of it with Xs.
