The Prospero Challenge
(mattkeeter.com)
prospero.vm is a plain-text file containing 7866 math expressions.
prospero.vm is a plain-text file containing 7866 math expressions.
The Bellingcat Open Source Challenge Is Back
(bellingcat.com)
At the end of last year, Bellingcat released a set of online challenges that we hoped would test the skills of our audience and the wider open source investigator community.
At the end of last year, Bellingcat released a set of online challenges that we hoped would test the skills of our audience and the wider open source investigator community.
The JIT Calculator Challenge
(ochagavia.nl)
Advent of code has come and passed, what should I do now with so much free time? Fear not! The JIT calculator challenge is here.
Advent of code has come and passed, what should I do now with so much free time? Fear not! The JIT calculator challenge is here.
The APL Challenge
(dyalog.com)
The deadline for the current round (2025.1) is Wednesday 30 April 2025 at 09:00 UTC.
The deadline for the current round (2025.1) is Wednesday 30 April 2025 at 09:00 UTC.
The $5000 Compression Challenge (2001)
(patrickcraig.co.uk)
Mike Goldman makes another offer: I will attach a prize of $5,000 to anyone who successfully meets this challenge. First, the contestant will tell me HOW LONG of a data file to generate. Second, I will generate the data file, and send it to the contestant.
Mike Goldman makes another offer: I will attach a prize of $5,000 to anyone who successfully meets this challenge. First, the contestant will tell me HOW LONG of a data file to generate. Second, I will generate the data file, and send it to the contestant.
Can humans say the largest prime number before we find the next one?
(saytheprime.com)
We're attempting to get a collection of humans to say every digit of the newly-discovered (and currently largest-known prime number) Mersenne prime M136279841, and hope to achieve this before another larger prime is discovered.
We're attempting to get a collection of humans to say every digit of the newly-discovered (and currently largest-known prime number) Mersenne prime M136279841, and hope to achieve this before another larger prime is discovered.