Sea Battle (Russian Battleship)
The classic Russian “Morskoy boy”: a 10×10 grid and a fleet of one 4-deck ship, two 3-deck, three 2-deck and four 1-deck ships (10 ships, 20 cells). Ships may not touch — not even at a corner. A hit lets you fire again; sink a ship and the cells around it are revealed as empty. Play online vs a friend or the AI.
10×10AI
Learn how to playPlay vs the computer
A single-player match against the AI — runs right here in your browser.
Create a room
Pick a game and player count, then share the invite code.
How to play
- 10×10 grid; fleet of 1×4, 2×3, 3×2 and 4×1 ships (10 ships, 20 cells).
- Ships are straight and may NOT touch — leave at least one empty cell around each, including diagonally.
- A HIT lets you fire again; a MISS passes the turn.
- When a ship is fully sunk, every cell around it is auto-revealed as empty.
- Win by sinking the entire enemy fleet.
