Four Corner Detective

Solve mysteries by touch in Four Corner Detective, a unique tactile deduction game from Japanese publisher itten. Designed for 1–5 players ages 6 and up, this quick 15-minute card game challenges players to guess hidden four-digit codes using only their fingertips.

Each player receives a card with curved corners representing digits. Without looking, you must carefully feel the corners, write down your prediction, and compare results. Points are scored based on accuracy, making each round a test of perception, logic, and touch-based deduction.

Simple to learn yet surprisingly clever, Four Corner Detective blends pattern recognition with sensory play, offering a fresh experience for families, kids, and groups seeking something different from traditional card games. With its short playtime and innovative tactile design, it’s perfect as a party warm-up, family activity, or portable travel game.