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Spaced repetition: each system comes back just before you would forget it. Fast, correct answers stretch the interval; a miss brings it back the same day.
Free practice: RenverséScore 0/0
Renversé
Aim = Start − Arrival
Your ball:White(cue ball · 1)
Other balls:YellowRed
Expected shot:RenverséRenverséCushion orderLong → Short → Long
The cue ball hits ball 2; on the cushions the spin turns it back and it goes to ball 3.
Given:
Arrival50Start70
In this position, what is Aim?
Task: put the given values into the system's formula and calculate Aim. Enter the answer as the number read on the table's Aim scale.