Sea Battle is a classic naval strategy game played on two 10×10 grids. Your goal is to find and sink all of the computer's ships before it sinks yours.
Ship placement: At the start, place your five ships on the left grid. Click a cell to position the ship, and use the Rotate button to toggle between horizontal and vertical. Ships cannot overlap or extend beyond the grid.
Your fleet: Carrier (5 cells), Warship (4 cells), Cruiser (3 cells), Submarine (3 cells), and Destroyer (2 cells).
Battle phase: Once all ships are placed, take turns firing. Click a cell on the right grid to fire at the computer's fleet. Red marks a hit; white marks a miss. The computer then fires back at your grid.
Sinking: When every cell of a ship has been hit, it is sunk. A notification appears to tell you which ship went down.
Winning: Sink all five enemy ships to win. Your shot count is tracked – try to win in as few shots as possible.
Change difficulty before starting a new game. On Easy the computer fires randomly and follows a ship's line in one direction once it spots it – but it gives up rather than hunting back the other way; on Medium it cleanly sinks any ship it has hit, extending in both directions; on Hard it also uses probability-based targeting to find ships faster.
Find and sink the computer's hidden fleet before it sinks yours.
Race your pieces around the board and bear them off before your opponent – but watch out for captures!
Jump and capture your opponent's pieces – king your pieces to move in any direction.
Drop discs into the grid and be the first to connect four in a line – horizontally, vertically, or diagonally.
Place discs to outflank your opponent and flip their pieces – the player with the most discs at the end wins.