or solve online (using our beta test of Penpa-Edit tools)
Theme: Invisible Outer Clues
Author/Opus: This is the 319th puzzle from our managing editor Serkan Yürekli.
Rules: Standard Battleships rules. Also, an even number of cells in each row and in each column must be occupied by ship segments.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:45, Expert = 5:30
Note: Follow this link for classic Battleships and this link for Battleships variations. If you are new to this puzzle type, here are our easiest Battleships to get started on. More Battleships puzzles can be found in Battleships and Variations, in The Art of Puzzles, and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.