Battleship

The Ultimate Guide to Battleship

Battleship is one of the most iconic strategy guessing games ever created. It began as a pencil-and-paper game played by soldiers and families in the early 1930s, with players drawing grids and calling out coordinates to locate each other's hidden fleet. In 1967, Milton Bradley released the classic plastic peg-and-board version that became a worldwide household staple, selling tens of millions of copies and inspiring movies, video games, and countless digital adaptations.

Today, Battleship remains a beloved game of logic, deduction, and probability. It is the perfect blend of accessibility — anyone can learn the rules in minutes — and strategic depth that rewards pattern recognition, systematic thinking, and psychological awareness.

How to Play Battleship — Complete Rules

Overview

Battleship is a two-player game where each player secretly places a fleet of ships on a personal grid, then takes turns calling "shots" by naming grid coordinates. The goal is to sink all of your opponent's ships before they sink yours.

The Grid

Each player has two 10×10 grids:

• Ocean Grid (Your Fleet): Where you place your own ships. Columns are labeled A–J and rows 1–10.
• Target Grid (Enemy Waters): Where you track your shots against your opponent — marking hits and misses.

Ship Placement

Before the game begins, each player secretly places their ships on their ocean grid according to these rules:

• Ships must be placed horizontally or vertically — never diagonally.
• Ships cannot overlap or occupy the same square.
• Ships must fit entirely within the grid boundaries.
• In standard rules, ships may touch each other (though some house rules forbid this).

Standard Fleet

The total fleet occupies 17 squares on the 100-square grid.

Taking Turns

1. On your turn, call out a grid coordinate (e.g., "B-7").
2. Your opponent checks their ocean grid and reports: "Hit" if the coordinate contains part of a ship, or "Miss" if it's empty water.
3. Mark the result on your target grid: typically a red peg for a hit and a white peg for a miss.
4. When all squares of a ship have been hit, the ship is sunk. The opponent announces: "You sunk my [ship name]!"
5. The first player to sink all five enemy ships wins the game.

Battleship Game Specifications

Battleship Strategy — Tips to Win More Games

1. Use the Parity (Checkerboard) Strategy

The smallest ship in Battleship is the Destroyer at 2 squares. This means every ship covers at least one "even" and one "odd" square on a checkerboard pattern. By only shooting at squares of one color (like the dark squares of a checkerboard), you effectively cut the number of squares you need to search in half — from 100 down to 50 — while still guaranteeing you'll hit every ship at least once.

2. Hunt Mode vs. Target Mode

Expert players think in two distinct phases:

• Hunt Mode: Fire at spread-out coordinates using the parity strategy to discover ships. Don't cluster your shots.
• Target Mode: Once you score a hit, switch to firing at adjacent squares (up, down, left, right) to determine the ship's orientation. Then continue in that direction until the ship is sunk.

3. Probability Density Thinking

Advanced players mentally (or computationally) estimate which squares are most likely to contain a ship based on remaining ship sizes and known misses. Center squares have higher probability early in the game because more ship placements can cross them. Edge and corner squares are statistically less likely to hold ships.

4. Don't Cluster Your Ships

When placing your fleet, spread your ships around the grid rather than grouping them together. If an opponent finds one ship in a cluster, nearby shots will quickly find the others. Mixing horizontal and vertical orientations makes your fleet harder to predict.

5. Avoid Predictable Placements

Many beginners place ships along the edges or in corners, thinking they're "hidden." Experienced players know this and often target edges early. Place at least some ships away from the border and vary your placement every game.

6. Track Sunk Ships Carefully

Once a ship is sunk, all squares surrounding that ship are guaranteed to be water. Mark those squares as misses to eliminate them from future guesses. This narrows down the remaining possibilities significantly.

7. Prioritize Larger Ships

The Carrier (5 squares) and Battleship (4 squares) are easier to find because they occupy more space. You'll typically discover them early. Focus your target-mode efforts on sinking them quickly so you can refine your search for the smaller, harder-to-find ships.

The History of Battleship

Battleship's origins trace to World War I-era France, where it was played as a pencil-and-paper game called L'Attaque among military officers. The game spread through France and Russia in the 1930s and was first commercially published in the United States by the Starex Novelty Company in 1931 under the name Salvo.

The definitive commercial version came in 1967 when Milton Bradley released the plastic peg-and-board game that became a global sensation. The distinctive gray cases, red and white pegs, and the dramatic exclamation "You sunk my battleship!" became deeply embedded in popular culture.

In 2012, Universal Pictures released a major motion picture titled Battleship, inspired by the game. Today, Battleship continues to thrive in both physical and digital formats, with online versions enabling real-time play across the globe.

Glossary of Battleship Terms

• Hit — A shot that strikes an occupied square of an enemy ship.
• Miss — A shot that lands on an empty water square.
• Sunk — A ship whose every square has been hit; it is removed from play.
• Salvo — A variant rule where each player fires multiple shots per turn (often one per surviving ship).
• Fleet — The complete set of five ships: Carrier, Battleship, Cruiser, Submarine, and Destroyer.
• Ocean Grid — Your personal grid where your ships are placed.
• Target Grid — The grid you use to track shots you've fired at the opponent.
• Parity — A search strategy based on the checkerboard pattern, exploiting the minimum ship size of 2.
• Hunt Mode — The search phase where you fire exploratory shots to locate ships.
• Target Mode — The destroy phase where you fire adjacent to known hits to sink ships.
• Coordinate — A letter-number pair (e.g., E-5) identifying a single square on the grid.
• Broadside — Slang for a devastating series of hits across multiple ships in quick succession.

Frequently Asked Questions About Battleship

Can ships touch each other in Battleship?

In the official Hasbro rules, yes — ships are allowed to touch each other. They simply cannot overlap (occupy the same square). However, many players use a popular house rule that forbids ships from touching, which adds an extra layer of strategic placement.

Can ships be placed diagonally?

No. In standard Battleship rules, ships must be placed either horizontally or vertically. Diagonal placement is not allowed. This rule applies to all official versions of the game.

How many ships are there in Battleship?

The standard game includes 5 ships per player: Carrier (5), Battleship (4), Cruiser (3), Submarine (3), and Destroyer (2). That's a total of 17 occupied squares per player out of the 100-square grid.

What is the best opening strategy?

Most experts recommend starting with a parity-based search pattern — firing at every other square in a checkerboard pattern. This ensures you check the maximum area with the fewest shots. Start near the center of the board, as center squares can be reached by more ship placements than edge squares.

How do you know when a ship is sunk?

When you hit every square of a ship, your opponent must announce that the ship has been sunk and identify which ship it was (e.g., "You sunk my Cruiser!"). In digital versions, the sinking is usually shown automatically with a visual indicator.

Can you move ships after the game starts?

No. Once both players have placed their ships and the game begins, ships cannot be moved for the rest of the game. They remain in their original positions until they are sunk. Some advanced variants like "Salvo" or "Captain's Mistress" include ship-movement rules, but these are non-standard.

What is the Salvo variant?

In the Salvo variant, each player fires a number of shots equal to their surviving ships each turn. At the start of the game you fire 5 shots per turn; as your ships are sunk, you fire fewer. The opponent reports all hits and misses at once after all shots are called. This variant speeds up the game and adds an extra planning dimension.

Is Battleship a game of luck or skill?

Battleship involves both luck and skill. The initial ship placement has a random element, and early shots are partly guesswork. However, skilled players consistently outperform beginners by using probability-based search patterns, efficient target-mode tactics, and strategic ship placement. Over many games, skill is the dominant factor.

What size is the Battleship grid?

The standard Battleship grid is 10 × 10, giving each player 100 squares. Columns are labeled A through J, and rows are numbered 1 through 10. Some travel or junior editions use smaller grids (e.g., 8×8), but the 10×10 grid is the official tournament standard.

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