It's customary but not obligatory to declare when you have your foe in this which can occur several times in a game

Below you can find the It's customary but not obligatory to declare when you have your foe in this which can occur several times in a game Jeopardy Words Answer. The answer to It's customary but not obligatory to declare when you have your foe in this which can occur several times in a game has 5 letters. This clue belongs to the A game of chess category and is part of Jeopardy Word Level 220. If you scroll near the bottom you will find other clues and answers part of level 220