ATRIUM

Copyright (c) 2004 Guy Jeandel

This game is played in the following 5x5 square board:

 

SETUP - First player has white and black stones, second player has red and blue. MOVE - On each turn, a player must move one friendly stone to an orthogonal empty cell. GOAL - The player that makes a orthogonal or diagonal 3 in-a-row with friendly stones of the same color, wins the game.

 

A starting example If it is First player's turn, he can win by moving b3-a3 and, next turn, b5-a5 making a vertical black 3 in-a-row. If it is Second player's turn, he wins immediately with a2-a3 (making a diagonal red 3 in-a-row).