Maths Olympiad Prep

Library /Baltic Way competition problems

Baltic Way competition problems

29 problems here, rated 4.3 to 6.9 on our scale (AIME to National Olympiad). 29 of them ask for a proof. Years covered: 1992–2019.

Algebra 7Combinatorics 8Geometry 9Number theory 5
#TopicDiffTypeYear
1 Algebra 4.3 proof — open
2 Algebra 4.3 proof 2016 open
3 Geometry 4.3 proof 1992 open
4 Geometry 4.4 proof — open
5 Geometry 4.4 proof — open
6 Algebra 4.4 proof — open
7 Number theory 4.5 proof — open
8 Geometry 4.5 proof — open
9 Combinatorics 4.5 proof 1997 open
10 Algebra 4.5 proof 1992 open
11 Geometry 4.7 proof — open
12 Algebra 4.8 proof 1992 open
13 Geometry 4.9 proof 2005 open
14 Number theory 4.9 proof 2016 open
15 Number theory 5.1 proof — open
16 Algebra 5.1 proof — open
17 Combinatorics 5.1 proof — open
18 Combinatorics 5.2 proof — open
19 Geometry 5.5 proof 1993 open
20 Number theory 5.6 proof 2016 open
21 Geometry 5.7 proof 2013 open
22 Combinatorics 5.7 proof — open
23 Geometry 5.8 proof — open
24 Number theory 5.8 proof 2016 open
25 Combinatorics 6.0 proof — open
26 Algebra 6.1 proof 2019 open
27 Combinatorics 6.5 proof 2019 open
28 Combinatorics 6.8 proof 2019 open
29 Combinatorics 6.9 proof 2019 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.