numbers · major
Pick a target.
Digit groups flash on screen for the time window you set. Each group has a peg word in your adopted system. Lock the peg in, then type the digits back.
digits:00–99 · 100 pegs (Major)
tier:
your drill
Memorize 40 digits in 60 seconds from all entries.
20 pairs · 60s memorize · recall is untimed
Tip: don't race the clock. Picture each peg in a place you already know. Speed comes after the images stick.