- Problem Calculator Language - Calculator with variables and right associative operators, Solution, Input, Output.
- Problem Network Wars - Paskill and Lisper program in computer network, Solution, Input, Output.
- Problem Strategy - Comparison of strategies for Problem of Prisoner, Solution, Input, Output.
- Problem Keywords - Finding pairs of words in text, Solution, Input, Output.
- Problem City navigation - Finding shortest route in special rectangular city, Solution, Input, Output.
- Problem Paper folding - Folding a paper, Solution, Input, Output.
- Problem Shuffling Patience - Card game with (rather) difficult rules, Solution, Input, Output.

Tarred & gzipped problem set. Complete archive including sample data and solutions.

- 19.10.1998 -- Ranklist, submited solutions.
- 31.10. 2002 -- Ranklist, submited solutions.
- 11.10. 2006 -- Ranklist, submited solutions.