Maths Olympiad Prep

Library /Estonia — Open Contests

Estonia — Open Contests

63 problems here, rated 4.3 to 7.3 on our scale (AIME to National Olympiad, round 2). 63 of them ask for a proof.

Algebra 19Combinatorics 12Geometry 16Number theory 16
#TopicDiffTypeYear
1 Number theory 4.3 proof — open
2 Number theory 4.4 proof — open
3 Algebra 4.5 proof — open
4 Number theory 4.6 proof — open
5 Geometry 4.6 proof — open
6 Algebra 4.7 proof — open
7 Algebra 4.7 proof — open
8 Algebra 4.8 proof — open
9 Algebra 4.8 proof — open
10 Algebra 4.8 proof — open
11 Geometry 4.8 proof — open
12 Algebra 4.9 proof — open
13 Number theory 4.9 proof — open
14 Number theory 4.9 proof — open
15 Geometry 4.9 proof — open
16 Algebra 4.9 proof — open
17 Combinatorics 5.0 proof — open
18 Number theory 5.0 proof — open
19 Combinatorics 5.0 proof — open
20 Geometry 5.0 proof — open
21 Combinatorics 5.1 proof — open
22 Number theory 5.1 proof — open
23 Algebra 5.1 proof — open
24 Algebra 5.2 proof — open
25 Geometry 5.2 proof — open
26 Algebra 5.2 proof — open
27 Algebra 5.2 proof — open
28 Geometry 5.3 proof — open
29 Number theory 5.3 proof — open
30 Geometry 5.3 proof — open
31 Number theory 5.4 proof — open
32 Number theory 5.4 proof — open
33 Geometry 5.5 proof — open
34 Algebra 5.5 proof — open
35 Algebra 5.6 proof — open
36 Geometry 5.6 proof — open
37 Combinatorics 5.6 proof — open
38 Number theory 5.6 proof — open
39 Number theory 5.6 proof — open
40 Algebra 5.6 proof — open
41 Combinatorics 5.7 proof — open
42 Geometry 5.7 proof — open
43 Algebra 5.8 proof — open
44 Number theory 5.9 proof — open
45 Geometry 6.0 proof — open
46 Combinatorics 6.1 proof — open
47 Geometry 6.1 proof — open
48 Geometry 6.3 proof — open
49 Geometry 6.3 proof — open
50 Number theory 6.4 proof — open
51 Geometry 6.5 proof — open
52 Geometry 6.5 proof — open
53 Combinatorics 6.5 proof — open
54 Algebra 6.5 proof — open
55 Algebra 6.6 proof — open
56 Number theory 6.6 proof — open
57 Number theory 6.6 proof — open
58 Combinatorics 6.6 proof — open
59 Combinatorics 6.7 proof — open
60 Combinatorics 6.8 proof — open
61 Algebra 7.0 proof — open
62 Combinatorics 7.2 proof — open
63 Combinatorics 7.3 proof — 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.