Find a fleet of ships in a grid using logic only.
If you are stuck, check out the handy hint option, or the game can solve one cell for you with an explanation. All puzzles are solvable by logic alone.
Yubotu is also known as Battleship Solitaire. This version is adapted from the popular online program that has been generating well-crafted puzzles since 2007.
This "Deluxe" version of Yubotu differs from the regular Yubotu version in that it has additional grid sizes of 20 and 25 and is also HD (optimized for high end smartphone and for tablets).
There are 80 free puzzles!