Three men’s morris is an abstract strategy game played on a three by three board (counting lines) that is similar to tic-tac-toe.

## Rules

Each player has three pieces. The winner is the first player to align their three pieces on a line drawn on the board. There are 3 horizontal lines, 3 vertical lines and 2 diagonal lines.

- The board is empty to begin the game, and players take turns placing their pieces on empty intersections.
- Once all pieces are placed (assuming there is no winner by then), play proceeds with each player moving one of their pieces per turn.
- A piece may move only to any
*adjacent*empty position.

There is an alternative version in which pieces *may not* move to an adjacent position, but to any vacant position that is not adjacent.

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