PS2 - NP-hard 1

Problems

Name Solved / Tries Average tries Average tries to solve
A Perfect Skyline 33/202 (16%) 5.46 5.39
B The Citrus Intern 31/158 (20%) 4.16 4.35
C Jailbreak 29/193 (15%) 5.08 5.14
D Buried Treasure 35/167 (21%) 4.17 4.14
E Exits in Excess 42/98 (43%) 2.23 2.24