Hammer-and-Nails-Game 'Stump' Goes Mobile In the game Stump--also known as Hammerschlagen--players try to hammer their opponents' nails into a stump, and the player with the last nail standing wins.

A stump, a hammer, and some nails are a trio together known as Hammerschlagen – a nail-pounding game that has a Chaska brewery and a Stillwater company at odds. Entertainment business WRB, ...