Peer-to-Peer Topic Challenge

Found an interesting challenge type while looking at GFoundry's website (Gamification Company based in Portugal): https://gfoundry.com/

One of the challenges that they have is the peer-to-peer challenge. In this challenge, players can compete with another player by answering a series of questions/challenges. It can be either time, bomb or most numbers of correct answers win.

• Time - Given limited time, eg. 30 seconds, players have to answer as many questions/challenges as possible.
• Bomb - Players have 1 to X number of wrong attempts before losing. Players that complete the most number of questions before their attempts run out, wins.

I would like to explore the possibility of implementing a new Topic type for this purpose. 

Peer-to-Peer Topic Feature:

• Ability to invite players to compete with the challenges in the Topic. (Player 1 can invite Player 2 to compete)