Classic naval warfare board game online. Sink all enemy ships before they sink yours. Play instantly in your browser â no download, no account required.
Classic naval warfare board game online. Sink all enemy ships before they sink yours. This is a free browser game â it works on Chrome, Firefox, Safari, and Edge without any installation. It also works on mobile browsers and Chromebooks.
Battleship has been played in various forms since World War I, when naval officers played pencil-and-paper grid targeting games for training. Milton Bradley commercialized the board game version in 1967. The browser version preserves the complete strategic experience while enabling online multiplayer against real opponents globally.
The probability mathematics of Battleship are well-studied. Before any shots are fired on a clean board, some cells are statistically more likely to contain ships than others. Center cells of the board can be covered by ships oriented in four possible alignments â horizontal and vertical, with the ship extending in either direction from that cell. Edge and corner cells have fewer possible ship orientations. This creates a probability heat map where center-area cells are statistically more likely to contain ships than edge cells.
Minimum-shot patterns eliminate the least probable locations quickly. A diagonal scan pattern â shooting every other cell in a diagonal â guarantees hitting any ship of length 2 or greater using only 50% of the board's cells before a hit. This is the statistically optimal pattern for a clean board before any information exists. After a hit, the probability distribution shifts entirely around that point.
Post-hit play requires systematic follow-up rather than intuitive guessing. The four cells adjacent to a hit are now high-probability targets. Shooting them in a specific order â typically vertical before horizontal â limits wasted shots on cells that geometry proves cannot be part of the same ship. When a second hit confirms ship orientation, all cells along that axis become systematic targets until the ship is sunk.
The psychology of fleet placement adds a human element beyond pure probability. Experienced players avoid corners and edges because these are easy to scan, and cluster ships in unpredictable interior positions. However, consistent corner-avoidance itself becomes a pattern that opponents can exploit â true random placement is often harder for humans to achieve than they expect.