denkiisu

Twelve chairs, numbered 1 to 12, each have an electric shock device.

Players are Attackers and Defenders. Attackers leave while Defenders secretly activate one chair’s shock. Attackers return and sit on a chair.

Defenders activate the device to check if the chair is electrified.

No shock: The Attacker earns points equal to the chair’s number.
Shocked: The Attacker’s score is zero, and they gain one Shock Point.
Used chairs are removed.