Contest problems

The competition is over and the booklet Problems with solutions is available.

Language Day 1 Day 2
All languages Day 1 Day 2
Afrikaans Day 1Day 2
Albanian Day 1Day 2
Arabic Day 1Day 2
Arabic (Kuwaiti) Day 1Day 2
Arabic (Moroccan) Day 1Day 2
Armenian Day 1Day 2
Azerbaijani Day 1Day 2
Bosnian Day 1Day 2
Bulgarian Day 1Day 2
Chinese (Simplified) Day 1Day 2
Chinese (Traditional) Day 1Day 2
Croatian Day 1Day 2
Czech Day 1Day 2
Danish Day 1Day 2
Dutch Day 1Day 2
English Day 1Day 2
Estonian Day 1Day 2
Finnish Day 1Day 2
French Day 1Day 2
Georgian Day 1Day 2
German Day 1Day 2
Greek Day 1Day 2
Hebrew Day 1Day 2
Hungarian Day 1Day 2
Icelandic Day 1Day 2
Italian Day 1Day 2
Japanese Day 1Day 2
Korean Day 1Day 2
Latvian (Lettish) Day 1Day 2
Lithuanian Day 1Day 2
Macedonian Day 1Day 2
Malay Day 1Day 2
Mongolian Day 1Day 2
Norwegian Day 1Day 2
Persian (Farsi) Day 1Day 2
Polish Day 1Day 2
Portuguese Day 1Day 2
Romanian Day 1Day 2
Russian Day 1Day 2
Serbian Day 1Day 2
Serbian (BIH) Day 1Day 2
Singhalese Day 1Day 2
Slovak Day 1Day 2
Slovenian Day 1Day 2
Spanish Day 1Day 2
Swedish Day 1Day 2
Thai Day 1Day 2
Turkish Day 1Day 2
Ukrainian Day 1Day 2
Uzbek Day 1Day 2
Vietnamese Day 1Day 2