Problems:

EuPhO 2021 theoretical problems (PDF)
EuPhO 2021 experimental problems (PDF)
All binary codes for the experiments (zip)

Solutions:

EuPho 2021 theory solutions (PDF)
EuPho 2021 exp solutions (PDF)

Results:

EuPhO 2021 Final results (PDF)

Best solutions:

T1: Nurdaulet Nazarbay, Kazakhstan
T2: Emir Akdağ, Turkey
T3: Vladislav Morozov, Belgium
and Vlad Ștefan Oros, România
E1: Xing Yang Shen, Singapore
E2: Václav Maštera, Czech Republic

Graders:

EuPhO 2021 graders (PDF)

Test solvers:

Thomas Foster, UK, University of Oxford
Ričards Kristers Knipšis, Latvia,  University of Manchester
Zhening Li, Canada