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White to move and mate in two #440 - Lucy's baby Selam [1]

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Date: 2023-12-05  

It’s been more than a month since the Lucy spacecraft made a close flyby of asteroid Dinkinesh on Nov 1. We also discovered that Dinkinesh has a moon, which itself is a contact-binary composed of two lobes. The moon has now been named Selam.

Here is a pair of stereoscopic images of Dinkinesh and Selam. The images were processed by Dr. Brian May, astrophysicist and guitarist 🎸 for the British rock band Queen. To see the 3D image, stare through the screen to infinity or use a stereoscope.

Dinkinesh and Selam stereograph. blogs.nasa.gov/...

Selam is the name of a fossil of a 3-year-old Australopithecus afarensis female hominin, whose bones were first found in Dikika, Ethiopia in 2000. Nicknamed Lucy's baby, the specimen is actually 120K years older than "Lucy", who lived 3.2 millions years ago. “Selam” (ሰላም) means “peace” in the Ethiopian language Amharic.

Dinkinesh is the Ethiopian name of the famous skeleton of a female of the hominin species Australopithecus afarensis. It was discovered in 1974 in Ethiopia by Donald Johanson. The specimen is also known by the name Lucy. Dinkinesh (ድንቅ ነሽ) means "you are wonderful" in the Amharic language.

The A. afarensis hominid was nicknamed "Lucy" after the 1967 Beatles song "Lucy in the Sky with Diamonds". Apparently, the song was played loudly and repeatedly in the expedition camp all evening after the team's first day of work on the excavation site.

The NASA Lucy mission is named after the Lucy hominin fossils, because the study of the trojans can "revolutionize our knowledge of planetary origins."

This is probably what Lucy looked like along with her Salem-like baby, 3.2 millions years ago —

"Australopithecus afarensis, mother and child" by noted paleoartist Mauricio Anton. mauricioanton.wordpress.com

Now, let’s solve today’s puzzle composed in 1884, by Arthur Ford Mackenzie (1861-1905).

P.S.

The chess puzzle is published on Sundays, Tuesdays and Thursdays at 6:00 p.m. ET.

It is customary for advanced players to wait till midnight ET before posting the full solution. Before then, they provide some stats about the solution (e.g., the minimum number of distinct checkmate moves), help guide others, and sometimes post hints. But there are no hard-and-fast rules; feel free to post comments as you please.

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