Maths Olympiad Prep

Library /Junior Balkan MO Shortlist

Junior Balkan MO Shortlist

31 problems here, rated 5.1 to 7 on our scale (AIME, harder to National Olympiad, round 2).

Algebra 10Combinatorics 6Geometry 5Number theory 10
#TopicDiffTypeYear
1 Geometry 5.1 answer — open
2 Number theory 5.4 answer — open
3 Algebra 5.4 answer — open
4 Algebra 5.5 answer — open
5 Algebra 5.5 answer — open
6 Number theory 5.5 answer — open
7 Number theory 5.5 answer — open
8 Geometry 5.5 answer — open
9 Number theory 5.6 answer — open
10 Geometry 5.6 answer — open
11 Number theory 5.6 answer — open
12 Algebra 5.7 answer — open
13 Algebra 5.7 answer — open
14 Geometry 5.7 answer — open
15 Number theory 5.7 answer — open
16 Geometry 5.8 answer — open
17 Number theory 5.8 answer — open
18 Combinatorics 5.8 answer — open
19 Algebra 5.9 answer — open
20 Algebra 6.0 answer — open
21 Algebra 6.0 answer — open
22 Combinatorics 6.1 answer — open
23 Algebra 6.1 answer — open
24 Algebra 6.1 answer — open
25 Combinatorics 6.4 answer — open
26 Combinatorics 6.4 answer — open
27 Number theory 6.4 answer — open
28 Number theory 6.5 answer — open
29 Combinatorics 6.6 answer — open
30 Number theory 6.9 answer — open
31 Combinatorics 7.0 answer — open
These are sorted by difficulty within the competition, but they aren't a course. The track is the route through, drawn from all the sources at once.