Chess World Championships 2013, Anand vs. Carlsen. Nice commentary on the games, also showing why they didn’t move differently. I’m not very much into chess but enjoyed that.

Small gaps between primes, by James Maynard.
“We introduce a refinement of the GPY sieve method for studying prime
k-tuples and small gaps between primes. […]
We also show that lim inf(p_{n+1}−p_{n}) ≤ 600.”

Primes in intervals of bounded length (PDF), summary paper by Andrew Granville about the recent developments.

R7RS-small draft ratified by the Steering Committee.

40 years of boxplots, by Hadley Wickham and Lisa Stryjewski.

Advanced R programming, book in progress by Hadley Wickham.

Seaborn is a library of high-level functions that facilitate making informative and attractive plots of statistical data using Python’s matplotlib.

Alea: a library for reasoning on randomized algorithms in Coq, by Christine Paulin-Mohring.

Vectorization of ChaCha Stream Cipher, by Martin Goll and Shay Gueron. “On the latest Intel Haswell microarchitecture, our AVX2 implementation performs at 1.43 cycles per byte (on a 4KB message), which is ~2x faster than the current implementation in the Chromium project.”

minime, a minimalist editor inspired by sam(1), acme(1) and emacs(1). Looks pretty neat.

Nomography, or Computing without Computers.