Battleship

Two players take turns calling "shots" to destroy each other's concealed warships on ruled grids.

Each player secretly places five ships of different sizes on a 10x10 grid, with ships placed horizontally or vertically without overlapping. Then, take turns calling out grid coordinates like "A-5". If it hits an opponent's ship, they'll say "hit", and you mark it with a red peg; if it misses, it's "miss" and marked with a white peg. The goal is to sink all the opponent's ships first.