From the Foxger’s Den #39: Battleship Sudoku
This is a “Twisted Tuesday” puzzle variation.
Theme: No Radar!
Rules: Standard Battleship Sudoku rules. However, there is no radar (no outside battleships clues).
Answer String: Enter the 5th row from left to right, followed by a comma, followed by the 5th column from top to bottom.
Time Standards (highlight to view): Grandmaster = 1:45, Master = 2:30, Expert = 5:00