ROU6, ROU3, ROU2, ROU4

Puzzle	Incorrect guesses	Unlock time (AEST)	Time to solve	Solve time (AEST)
Decomposition	0	Jul 16, 13:00	6h33m	Jul 16, 19:33
Sudok-IMO: A Unique Performance	1	Jul 16, 13:00	7h38m	Jul 16, 20:38
Tri-Alphametic	0	Jul 16, 13:00	8h36m	Jul 16, 21:36
Circular Reasoning	0	Jul 16, 13:00	8h40m	Jul 16, 21:40
Koala Kings	0	Jul 16, 13:00	9h40m	Jul 16, 22:40
My Windmill Has A Pencil	3	Jul 16, 13:00	10h4m	Jul 16, 23:04
Venn-ary Encoding	2	Jul 16, 13:00	11h22m	Jul 17, 00:22