FoxMind Games Abalone Ages 7 and up-1 ea

"Players take turns pushing the marbles around the board, with the goal of pushing six of the opposing player's marbles off the board. The central idea is that a column of marbles has weight given by the number of marbles in line. Someone will need to push with a heavier group of marbles in order to push the column along that axis. However, with six possible directions, it's difficult to defend yourself perfectly." Board Game Geeks