Memorise the sequence as it flashes one digit at a time, then type it back in the exact same order.
Upgrade to unlock Reverse and Sort modes.
The sequence grows a digit after each correct answer and shrinks after a mistake, never going past the length you set.
Adaptive up to 8 digits, reaching 7 with accuracy at or above 80%.
The full range, exactly how the assessment version runs: the sequence keeps climbing until you miss. This is the setting to be comfortable on before a test.
60% at 15s a question or faster, 5+ questions in one session
Track your best scores and watch your accuracy climb across every session.