Dowsing Mine

From BoardGameGeek:

Dowsing Mine / ダウジングマイン is a logic puzzle game played using the digital representation of the alphabet. The object is to guess the letters used in your opponent's word (3-5 letters) before they do by alternating questions to find out where the letters are located. Use your puzzle skills (and a little English) to decipher the letters faster than your opponent! -description from the publisher