How to play

A naval duel against the computer, on two 10 by 10 grids.

• Place your five ships. Pick a ship, tap a square, and it runs across or down from there. Rotate flips the direction, and Quick start drops the whole fleet at random.
• Fire. Tap a square in Enemy waters. Each shot goes to the server, which tells you hit or miss and nothing else.
• Take fire. After every shot of yours, the computer fires back at your fleet.
• Sink all five enemy ships to release the cache. If the computer sinks your fleet first, you can start a fresh game right away.

Every square you fire at gets its own mark, so you never have to rely on color alone: a cross for a miss, a red target for a hit, and a filled target on a black square once that ship goes down.

The enemy fleet is dealt fresh on the server for every game and is never sent to this page, so there is nothing here to peek at. Your own fleet goes to the server when you press Start game, which is how the computer can fire back at it.