New keys·Pinkies finish the alphabet.
WPM0
ACC100%
DONE0%
zzz ... z.z .z. z.z ./. /z
Left Pinky
Lesson 14 of 15 in the free touch-typing course — it practises Z · . · /, working outward from the home row. By this point you're typing with 29 keys, accuracy before speed.