Duel
Fence an opponent
A live bout. Each tempo the opponent commits to something you cannot see; the stage shows only its tells. Read the hands, the weight, the feet and the point, then act: take a guard, close the measure, attack, counter, or work the bind. It is still a teaching tool: rewind any tempo, set what the opponent does to drill a situation, ask for a hint, and record the bout to replay it or send it to someone.
Replay a recording
Have a transcript, a replay link or a downloaded file? Open it in the replay viewer.