Chess rule is not only 50 moves w/o capture,but also w/o pawn move.
In case this rule, it should be definitely more than 50 moves w/o capture. In chess is such rule applied after, say, 60th move, so there is near same ammount of moves available to realization of advantage as was length of games - and 60 moves is already considered as long game.
But I think there is no need for such rule. There is possibility to contact Fencer to claim game as draw and it should be sufficient.