Dibya Sankar Chattopadhyay

External jury member

Problems graded	Report grade	Opposition grade	Moderation grade
7. Double Decker Newton’s Cradle	8 (Hungary)	6 (Switzerland)	7 (Canada)
10. Dancing Soapy Vortices	8 (Switzerland)	7 (Canada)	8 (Team IPT)
2. The Life of Beer Foam	8 (Canada)	8 (Team IPT)	10 (Hungary)
4. Periodic Gurgles	6 (Team IPT)	7 (Hungary)	6 (Switzerland)
4. Periodic Gurgles	8 (Ukraine)	7 (Brazil)	7 (Greece)
5. Electrostatic Cyclotron	8 (Brazil)	9 (Greece)	7 (Austria)
6. Maxwell's Demon	7 (Greece)	9 (Austria)	5 (Ukraine)
12. Kinetic Voltmeter	8 (Austria)	7 (Ukraine)	5 (Brazil)
12. Kinetic Voltmeter	6 (Colombia)	7 (Greece)	9 (Switzerland)
13. Rice Holes	6 (Greece)	7 (Switzerland)	7 (Denmark)
8. Eddy Current Engine	9 (Switzerland)	8 (Denmark)	6 (Colombia)
7. Double Decker Newton’s Cradle	6 (Denmark)	8 (Colombia)	7 (Greece)