News
6:07 p.m.
First Announcement: CG Challenge 2025
We are happy to announce the Seventh Computational Geometry Challenge, as part of CG Week in Kanazawa, Japan, June 23-27, 2025.
As in previous years, the objective will be to compute good solutions to instances of a difficult geometric optimization problem. The specific problem chosen …
9:44 a.m.
CG:SHOP Challenge 2025: Call for Problems
Since 2019, the CG:SHOP Challenge has been part of CG Week. The objective is to compute good solutions for instances of a challenging geometric optimization problem. The contributors with the most outstanding solutions are recognized at CG Week and invited to present their results, …
10:51 a.m.
With only a few days left, participants are reminded of the approaching submission deadline. If you face any issues during submission, please email us with your team's name and a hash of your solution files. Once you have the files ready, follow up with a link for us to access them.
9:12 a.m.
If you experience any issues with your account, possibly due to our ongoing maintenance to manage disruptive activities on the site, please email us. We will resolve it promptly.
8:05 p.m.
I am pleased to announce that the instances for our competitions are now available for download. Furthermore, we have successfully implemented the solution upload functionality. However, please note that the verification process for submitted solutions will commence in a few weeks' time.
5:14 p.m.
Presenting our latest example instances! Your feedback was invaluable, and we've responded accordingly. The example file has been revamped—say goodbye to pesky tiny objects in instances. Plus, a new generator has been included! And that's not all – we've also introduced visualizations for the new instances.
6:56 p.m.
First batch of example instances for the new CGSHOP2024 challenge! You can find it on the corresponding page under the download button. Please note that this is just the first batch and we are still experimenting with generators. We may publish a further batch of example instances once we have …
12:54 p.m.
The official ranking for the 2023 challenge is now public! The two top teams have been invited to present their approaches on this year's CG Week. Thanks to all participants and we hope you enjoyed this year's challenge and will join the next one, too!
10:57 a.m.
With ~24 hours to go (27th, AoE), please note that the rank is only final, after we evaluated all submissions. If you encounter any problems with your upload, please just mail us a hash of it and then forward us the submission via some link. We will then add it …
5:42 p.m.
We have slightly changed the instance set. Please make sure you download a new version of the instance ZIP archive!