The first problem in what judges acknowledged was an unusually difficult problem set fell to Tsinghua University, who solved “Surveillance” in 17 minutes.
Other first-to-solve accolades went to:
Game Strategy (Moscow State University – 28 minutes)
Crane Balancing (Shanghai Jiao Tong University – 35 minutes)
Sensor Network (Iowa State University – 68 minutes)
Buffed Buffet (St. Petersburg State University – 101 minutes)
Maze Reduction (University of Warsaw – 106 minutes)
Messenger (Moscow State University – 290 minutes)
There were 4 problems that no one solved: Baggage, Pachinko, Skiiing and Wire Crossing).