two-handed game

noun1

1. •
   (slang, no longer used) A game or proposal in which the chances are fairly even; a situation where one will get as good as one gives.

   • "Mr. Pillow, Sir, none of your impertinence, or I will chastise you as well as this fellow." "That's a two handed game, by thunder," said Long Tom, "[…] I dare you to deadly combat. […]" — 1849