Hello,
as part of the on-going simplification of the site, we’ve moved the Clash of Code contributions to the community tab.
Soon the pending puzzles contributions will follow and be moved to the community tab as well. Indeed the puzzles page is being reworked, so it will be released at the same time.
And if some don’t see the tab Clash of Code, it’s totally normal, we’re conducting a few tests. It’s available from the home page anyway.
I forgot to tell something (thank you @simon_landry): for those who don’t have the Clash of Code tab, there is just one mode now, flash (5 minutes) for which you have still maximum 15 minutes to code.
If you’ve got questions, don’t hesitate