The object of Four-in-a-Row is to place four pieces in a vertical, horizontal, or diagonal row while the opponent tries to block and make his/her own row of four. Four-in-a-Row can be played against another human or the computer.
Lauko artzain-jokoaren helburua lau pieza errenkada bertikal, horizontal edo diagonalean jartzea da, aurkariak zure errenkada blokeatzen edo bere lauko errenkada sortzen saiatzen den bitartean. Lauko artzain-jokoa beste gizaki baten edo ordenagailu baten aurka joka daiteke.