Rules for the GPT 2023

Some comments on the rules for the GPT 2023

The rules will be similar to the usual rules of the IPT (see IPT website: that in short are also presented here on the website of the GPT (

In 2023 the GPT will consist of two rounds: A first online round where you can qualify for the second round (probably in person and therefore called in person in the following).

The major difference to the rules of the IPT is that there is a simplification on what problems can be challenged: Each team has to announce which problems it has worked on (probably at one problem per participant in the online round and two problems per participant in the in person round). Only these problems can be challenged by other teams and the team can only report on the problems that it has announced. Therefore, to participate, it is sufficient if every participant works on one problem for the online round and two problems for the in person round.

Furthermore in the online physics fights the role of a reviewer will be skipped in order to speed up the physics fights. In the final the role of a reviewer will still be used. Second, technical timeouts are introduced.

Previous rules of the GPT 2021 and 2022 can be downloaded here.

Rules of the GPT 2023:

(note that small changes of the rules are possible anytime up to the event)

The GPT will consist of two rounds: A first online round where you can qualify for the second round. The second round probably will be in person and therefore is called in person round in the following. If necessary the second round might be switched to an online competition as well. Then the online rules (see below) will also apply to the second round except that there will be reviewer in the final.

The problems of the IPT 2023 will be taken. The rules of the IPT (see IPT website: will be used with the following modifications:

1. Each team has to give a list with at least one problem per team member for the online round and two problems per team member for the in person round. Only problems from this list can challenged or presented in the competitions. The problems submitted can be changed until one week before the respective round.

2. The online round of the GPT will be the qualifying competition for the in person round: The best teams will be allowed to participate in the in person round. In principle, teams can regroup if necessary as long as the majority of a teams is unchanged. The jury or the organizer of the in person round can decide about the qualification of additional participants in case of cancellations or empty slots.

3. Online round of the GPT: There will be no reviewer. The timetable of all physics fights prior to he final will be adjusted accordingly.

4. All problems presented during a physics fight (PF) must be different (if possible).

5. It is possible to oppose a problem that has been presented by the same team before.

6. There is one tactical rejection per PF without any penalty for the team.

7. The best three teams from the online round will get bonus points for the initial PFs of the in person round: 3 bonus points for the best team, 2 bonus points for the second, and 1 bonus point for the third team. Otherwise, the counting of points starts at zero in the in person round.

8. The in person round consists of one or more initial PFs and a final fight. The best three teams of the initial PFs will be allowed to compete in the final. The best team from the initial PFs will have 2 bonus points in the final and the second team 1 bonus point. Note that as in the IPT only the final matters to determine the winning team of the GPT.

9. Additional rules for online competitions: All participants of a PF have to be alone in their room. Outside of the official video conference, the communication between participants is only allowed via text messengers or text chats during the PFs. In case of technical problems, there is the possibility to ask for a technical timeout which can be granted by the chair if the request seems reasonable.