RU training?

Problems

Name Solved / Tries Average tries Average tries to solve
A Astro 2/3 (67%) 1.50 1.50
B Avion 2/2 (100%) 1.00 1.00
C Digits 2/2 (100%) 1.00 1.00
D Dugovi 1/2 (50%) 2.00 2.00
E A Flea on a Chessboard 1/4 (25%) 4.00 4.00
F Grid Speed 0/0 (0%) -- --
G Krtica 1/5 (20%) 5.00 5.00
H Lines Of Action 0/4 (0%) 4.00 --
I Parket 2/2 (100%) 1.00 1.00
J Sort 2/2 (100%) 1.00 1.00
K Test Scheduling 1/22 (5%) 22.00 22.00