8 vs 8 in a war and 2 judges... each person counts as 2 pieces, 1 piece in the back row and the pawn in front of it. Both teams vote on the moves they wish to make and then play a game of chess. Every time one piece tries to take another, the two duelists representing those pieces could duel and if the attacker wins the take goes through where as if it doesn't the other team loses a turn.
Edit: each piece also has a deck given to it which must be used by the duelist who representing that deck. The duelist must choose this deck before hand (deliberation between team members is allowed). However, you don't know which piece is which deck or which duelist so the info is sent to the judges so that they can make sure no one uses a different deck.
Edit: each piece also has a deck given to it which must be used by the duelist who representing that deck. The duelist must choose this deck before hand (deliberation between team members is allowed). However, you don't know which piece is which deck or which duelist so the info is sent to the judges so that they can make sure no one uses a different deck.