Now submit your entries for your choice of challenges. Each of the buttons below will open a new window for data entry. If you have already made a submission for a challenge, reposting it will replace the older version.
Note that this form will accept submissions past the new deadline of 11:59pm PST, Dec 2 (= 7:59am GMT, Dec 3), but late submissions will be tagged as such and not included in the official evaluation.
(However, no assistance in using this website will be guaranteed past the original deadline of Nov 30.)