The eighth challenge of the 2020 Series will be a 10-day challenge commemorating the (approximate) 500th Anniversary of the extraordinary expedition of Portuguese explorer Ferdinand Magellan. The challenge will be offered on the CUL-LLR and WOO-LLR subprojects, beginning 18 November 18:00 UTC and ending 28 November 18:00 UTC.

To participate in the Challenge, please select only the Cullen Prime Search LLR (CUL) and/or Woodall Prime Search LLR (WOO) projects in your PrimeGrid preferences section. Work units which are downloaded and completed during the challenge will count towards your challenge score.

Note: This will be our second challenge using LLR2, which eliminates the need for a full doublecheck task on each workunit, but replaces it with a short verification task. Expect to receive a few tasks about 1% of normal length.

Comments? Concerns? Conundrums? Confusions? Think we'll break the decade-long drought of Cullen primes? Tell us in the forum thread for this challenge. Best of luck!