Maths Olympiad Prep

Library /UKMT Pink Kangaroo

UKMT Pink Kangaroo

121 problems here, rated 1 to 5 on our scale (Junior to AIME, harder). Years covered: 2015–2026.

Algebra 40Combinatorics 37Geometry 7Number theory 37
#TopicDiffTypeYear
1 Geometry 1.0 answer 2018 open
2 Algebra 1.0 answer 2023 open
3 Algebra 1.0 answer 2020 open
4 Algebra 1.0 answer 2020 open
5 Combinatorics 1.0 answer 2019 open
6 Algebra 1.0 answer 2019 open
7 Number theory 1.0 answer 2015 open
8 Algebra 1.0 answer 2025 open
9 Combinatorics 1.0 answer 2022 open
10 Number theory 1.0 answer 2026 open
11 Algebra 1.0 answer 2023 open
12 Algebra 1.0 answer 2021 open
13 Algebra 1.0 answer 2024 open
14 Algebra 1.0 answer 2019 open
15 Combinatorics 1.0 answer 2019 open
16 Number theory 1.0 answer 2015 open
17 Number theory 1.0 answer 2016 open
18 Algebra 1.0 answer 2021 open
19 Number theory 1.0 answer 2015 open
20 Algebra 1.0 answer 2018 open
21 Algebra 1.0 answer 2017 open
22 Algebra 1.0 answer 2016 open
23 Algebra 1.0 answer 2023 open
24 Number theory 1.0 answer 2017 open
25 Algebra 1.0 answer 2020 open
26 Algebra 1.0 answer 2016 open
27 Number theory 1.0 answer 2018 open
28 Combinatorics 1.0 answer 2023 open
29 Algebra 1.0 answer 2026 open
30 Algebra 1.0 answer 2019 open
31 Algebra 1.0 answer 2017 open
32 Algebra 2.0 answer 2026 open
33 Number theory 2.0 answer 2021 open
34 Algebra 2.0 answer 2015 open
35 Number theory 2.0 answer 2023 open
36 Geometry 2.0 answer 2024 open
37 Combinatorics 2.0 answer 2022 open
38 Algebra 2.0 answer 2017 open
39 Number theory 2.0 answer 2015 open
40 Combinatorics 2.0 answer 2015 open
41 Algebra 2.0 answer 2015 open
42 Combinatorics 2.0 answer 2024 open
43 Combinatorics 2.0 answer 2017 open
44 Number theory 2.0 answer 2017 open
45 Combinatorics 2.0 answer 2016 open
46 Algebra 2.0 answer 2023 open
47 Combinatorics 2.0 answer 2016 open
48 Number theory 2.0 answer 2019 open
49 Combinatorics 2.0 answer 2016 open
50 Algebra 2.0 answer 2018 open
51 Combinatorics 2.0 answer 2017 open
52 Algebra 2.0 answer 2021 open
53 Combinatorics 2.0 answer 2020 open
54 Geometry 2.0 answer 2020 open
55 Geometry 2.0 answer 2016 open
56 Algebra 2.0 answer 2021 open
57 Combinatorics 2.0 answer 2025 open
58 Combinatorics 2.0 answer 2016 open
59 Number theory 2.0 answer 2026 open
60 Number theory 2.0 answer 2018 open
61 Combinatorics 2.0 answer 2021 open
62 Algebra 2.0 answer 2021 open
63 Number theory 2.0 answer 2022 open
64 Algebra 2.0 answer 2016 open
65 Number theory 2.0 answer 2020 open
66 Number theory 2.0 answer 2019 open
67 Number theory 2.0 answer 2016 open
68 Algebra 2.0 answer 2018 open
69 Combinatorics 2.0 answer 2015 open
70 Number theory 2.0 answer 2020 open
71 Number theory 2.0 answer 2025 open
72 Number theory 2.0 answer 2024 open
73 Combinatorics 2.0 answer 2022 open
74 Algebra 3.0 answer 2016 open
75 Geometry 3.0 answer 2022 open
76 Number theory 3.0 answer 2021 open
77 Number theory 3.0 answer 2021 open
78 Combinatorics 3.0 answer 2022 open
79 Combinatorics 3.0 answer 2024 open
80 Combinatorics 3.0 answer 2026 open
81 Combinatorics 3.0 answer 2026 open
82 Algebra 3.0 answer 2015 open
83 Combinatorics 3.0 answer 2016 open
84 Algebra 3.0 answer 2022 open
85 Combinatorics 3.0 answer 2022 open
86 Combinatorics 3.0 answer 2020 open
87 Number theory 3.0 answer 2020 open
88 Number theory 3.0 answer 2017 open
89 Number theory 3.0 answer 2023 open
90 Combinatorics 3.0 answer 2016 open
91 Combinatorics 3.0 answer 2020 open
92 Number theory 3.0 answer 2022 open
93 Number theory 3.0 answer 2019 open
94 Number theory 3.0 answer 2025 open
95 Geometry 3.0 answer 2017 open
96 Combinatorics 3.0 answer 2025 open
97 Number theory 3.0 answer 2021 open
98 Combinatorics 3.0 answer 2019 open
99 Algebra 3.0 answer 2025 open
100 Number theory 3.0 answer 2020 open
101 Number theory 3.0 answer 2015 open
102 Algebra 3.0 answer 2024 open
103 Algebra 3.0 answer 2023 open
104 Geometry 3.0 answer 2018 open
105 Combinatorics 3.0 answer 2020 open
106 Combinatorics 3.0 answer 2026 open
107 Algebra 3.0 answer 2019 open
108 Number theory 3.0 answer 2024 open
109 Algebra 3.0 answer 2016 open
110 Algebra 3.0 answer 2022 open
111 Algebra 3.0 answer 2017 open
112 Number theory 3.0 answer 2020 open
113 Combinatorics 3.0 answer 2022 open
114 Combinatorics 3.0 answer 2026 open
115 Combinatorics 3.0 answer 2021 open
116 Number theory 3.0 answer 2025 open
117 Number theory 3.0 answer 2024 open
118 Number theory 5.0 answer 2024 open
119 Combinatorics 5.0 answer 2021 open
120 Combinatorics 5.0 answer 2024 open
121 Combinatorics 5.0 answer 2016 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.