However, players ignored it or got around it by intentional threefold repetition.

As noted above, one of the players must claim a draw by threefold repetition for the rule to be applied, otherwise the game continues.

Arimaa does not allow threefold repetition of the same position with the same player to move.

The possibility of an en passant capture has an effect on claiming a draw by threefold repetition.

This is called a draw by threefold repetition.

A draw by threefold repetition of position soon ensued.

Kf2 - A draw by threefold repetition.

Rc3 - A draw by threefold repetition.

Qd1 - A draw by threefold repetition.

Kf4 - A draw by threefold repetition (with perpetual check).