v1
Operation Span
Check a sum, remember a letter, repeat. Then recall the letters in order. Tests memory while your mind is busy.
No attempts yet — play to set your first score, then challenge a friend to beat it.
↵ to start · Esc to exit
Check a sum, remember a letter, repeat. Then recall the letters in order. Tests memory while your mind is busy.
No attempts yet — play to set your first score, then challenge a friend to beat it.
↵ to start · Esc to exit