Sea Battle Solitaire is a logic puzzle for the Palm OS, in which you are challenged to deduce the hidden navy deployment.

Instructions:

- The objective is to determine your enemy's navy deployment.

- A navy consists of

* 1x Battleship of length 4,

* 2x Cruiser of length 3,

* 3x Destroyer of length 2,

* 4x Submarine of length 1.

- Ships are arranged horizontally or vertically on the board.

- No two ships have squares which are adjacent to other ships, not even diagonally.

- Each line (either row or column) has two numbers placed after it. You can see these numbers down the right hand side, and along the bottom, of the board.

- The first number, in black, is the number of occupied squares in this line.

- The second number, in red or blue ( or grey ), is the number of occupied squares remaining to be found in that line.

- The red number turns to a blue zero when it's line is complete.

- Tap a square to cycle it between being unknown, sea or ship.

- On the right you will see a tally of the ships, which will be automatically crossed off as they are found.

- Good luck.

More details can be found at the developer's web site: http://www.scarletline.com/software.html.