Your opponent is using a pre-KDE4 version of KBattleship. Note that, according to the rules enforced by old clients, ships cannot be placed adjacent to one another.
Tá do chéile comhraic ag baint úsáid as leagan KBattleship níos sine ná KDE4. De réir na rialacha a chuir na seanchliaint i bhfeidhm, ní cheadaítear longa a shuí go díreach in aice lena chéile.