- The first n lines contain the square board, with each line representing one row of the board
- Each of the first n lines has n space seperated elements representing cells of that particular row, these can be either 0 or 1 or N/W/S/E/NE/NW/SW/SE
- 0 denotes empty cells
- 1 denotes pebbles
- N/W/S/E/NE/NW/SW/SE denotes cells filled with arrows, according to the mapping specified in the rules.
- The line following the first n lines represents the row counts, which has n space seperated integers representing the number of expected pebbles in each row of the solved board.
- The last line represents the column counts, which has n space seperated integers representing the number of expected pebbles in each column of the solved board.