- Counting with the Product and Sum Rulesages 18 to 19 · 14 questions
- Permutations and Combinationsages 18 to 19 · 14 questions
- Binomial Coefficients and Combinatorial Identitiesages 18 to 19 · 14 questions
- The Pigeonhole Principleages 19 to 20 · 18 questions
- Inclusion-Exclusionages 19 to 20 · 14 questions
- Recurrence Relations and Characteristic Rootsages 19 to 20 · 14 questions
- Generating Functionsages 20 to 21 · 14 questions
- Graphs, Degrees and the Handshake Lemmaages 20 to 21 · 17 questions
- Trees and Spanning Treesages 20 to 21 · 14 questions
- Euler Trails and Hamilton Cyclesages 21 to 22 · 14 questions
- Graph Colouring and Planarityages 21 to 22 · 17 questions
- Matchings and Hall's Theoremages 21 to 22 · 17 questions